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Things to avoid at all cost...

Don't give the job to someone who claims they can do the job for less than the figures we are quoting on these pages. If its cheaper, they have to be leaving something out - and you will regret it for ever and a day! Get them to quote on a detailed specification, and watch them like a hawk when they do the job to ensure they are putting in the materials and quantities specified and quoted on. 

All too often we are asked to comment on an old school that just doesnt work the way it used to. There are two main problems that crop up again and again. They are:

Incorrect or inadequate drainage bed beneath the surface. 

If a school has been put down cheaply, the easiest corner to cut is this one. You simply don't put sufficient land drains beneath the surface to carry away the volume of water that is produced in a rainstorm. Water builds up quickly, and flows away slowly. The drains need to be 'wrapped' in membrane to stop them from blocking - all too often this isnt done and the little holes in the pipes slowly block with clay and sand. 

The other corner that is often cut is to leave out a drainage bed of stone - if the surface is laid directly onto the ground, there is no depth into which surface water can drain as it makes its way into the drainage pipes to leave the area. This is one of the commonest problems - you can cut up to £2000 off the cost of a school by omitting this step, but you will forever curse having done so. 

Inappropriate surface 

This is something I see so often - and can be regional in nature. In Cornwall and Devon there has been a huge amount of lovely white silica sand produced as a by-product of china clay mining.. Umm .... CLAY mining!!!! Don't touch the stuff! I've seen literally tens of these things, all producing vast amounts of white dust when you ride them in the summer, and in winter they are a sticky wet mess. The mines cannot wash all of the kaolin out of the sand, and you are effectively buying puddling clay to stick on top of your beautiful drainage bed. One of the biggest teaching / competition venues in the area has several arenas surfaced like this, and I've seen people literally doing the water jump when warming up for the showjumping in wet weather. 

Another suspect material to use is bark or woodchip. These work fine for a year or two, but ALWAYS break down into a soggy mess after a year or two. You are dumping tonne after tonne of organic material onto your drainage bed that wants nothing other than to rot down into lovely compost - nice fine, crumbly, clayey brown stuff that clogs everything! Vendors will do anything to convince you that its treated, and wont break down - but it always does in the end - at which point you are left with a blocked drainage system, and a very dusty surface in summer.

Although not really 'inappropriate', shredded tyres are fast becoming obsolete because of environmental concerns. If you are offered shredded tyres - think long and hard before getting it - odds are that someone is trying to offload what is soon to be classified as hazardous environmental waste, and you won't thank them if the planners or environment office find out. Its already banned in Europe. 

Do I need planning permission?

Yes. No exceptions. Anywhere. Depending on the authority, they usually need 5 sets of existing and proposed plans and elevations together with engineering details covering drainage, construction, fencing and detail of where the water runoff will be directed. You will have to provide samples of the proposed surface.

Paul Belasik - a must have...

These are superb books which you need to have if you do dressage.  Paul comes over to England once a year, and holds fantastic clinics.. 

How to build a manege (menage) yourself

Manege in Bolsover Castle Riding Hall
The Riding School - Bolsover Castle - 1637

The Gallery can be seen in the background, at the far end of the school.

Image courtesy English Heritage

Menage or manege?

Well... if you say menage to a Frenchman he'll think of households - as in 'menage a trois' - and certainly won't connect you with horses. The correct term for a schooling area for horses is manege!

The Most Famous Manege in England...

Did you know that one of the most historic maneges in the world is right here in England? William, Duke of Newcastle, built it in the 1630's. The equestrian facilities at Bolsover Castle, in Derbyshire consist of four areas, including a small shoeing house, which incorporated a forge. From the shoeing house, stairs ascend to the gallery of the Riding House enabling the horses being ridden in the Manege to be seen from above. The central part of the facilities is the Riding House itself, which was dedicated to the art of manege. William Cavendish was obsessed with manege, writing a book on the subject, "La Methode Nouvelle et Invention Extraordinaire de Dresser les Chevaux" in 1657. He was the riding instructor for Prince Charles (later King Charles II). The Riding House contained a soft, sand floor which is still in use today - the horses could be watched in comfort from the gallery of the neighbouring shoeing house.

Peter recently visited Bolsover with famous American dressage trainer, Paul Belasik. Paul has studied the work of the Duke of Newcastle, and was lucky enough to train under the Maestro - Nuno Olivera.

Here's how to build your own menage then...

I've dealt in detail with the issues that need to be tackled, as a series of headings which follow. Let's go through things in short form first. So you want a manege? What for? You'll need to be clear about this, because the selection of All Weather Riding Surface depends on what you will do with it. Lets assume you will be doing some light exercise, a bit of training, teaching - perhaps the kids on their first pony, that sort of thing - in other words, this little exercise is to build a manege for mainly light home and family use. First - have you got somewhere suitable? You'll need to find a site that is big enough for what should really be the standard size of 40 x 20 metres. You can do almost anything with this size barring international competition. It needs to be flat - well drained - so dont go trying to stick it in the bottom of a muddy gulley (I've seen it done!) If you dont have flat ground, is there somewhere than can be levelled and backfilled to produce the area you need? Its amazing what diggers can do these days, even with rocky ground or exposed rock outcrops!

OK - so we have a site that you think might be suitable. Your next move should really be to apply for planning permission. I know - pain in the butt, but if you apply and get it, you will automatically add value to your property (Horse and Hound did a survey recently and reckoned it added 10% to the value of your property..) - if you don't, and they find out when its finished, you can be up for a lot of trouble - its not worth the hassle. You'll need an application fee - usually around £150 - and scaled drawings of the site, together with diagrams of the proposed construction, and details of your property - statements that you own it, and things like that. Its not hard to do - but you may want to engage an architect or similar person (we can help) to produce the drawings - scruffy sketches on the back of a cigarette packet just don't cut ice with planners any more! They'll want to know what surface you are going to use, and usually request samples.

Now then - you have permission - so whats to be done - how do we start?

First, we have to mark out the area. We need to stake out a 40 x 20 area, perfect rectangle, with pegs at each corner, and levels marked on them so we get it flat. I normally stake out 41 x 21 metres - by the time you have finished, and the fencing is put around, it gives you a workable area of 40 x 20, with a bit round the edge for dressage markers, cones etc. I'm going to assume you will put post and rail fencing around the edges, with a 12' gate at one end. To stake out the area, we need a bundle of wooden pegs - I'd get at least 20 of them. The sort you can buy at garden centres for staking trees are ideal - they are pointed on the end. Start by laying out the first long side of the school - put a peg in where the first corner will be, and measure 41 metres from it - you can buy a 50 metre flexible tape from places like B&Q for a pound or two. When you are happy you've got the length and position right, bung another peg in at the second corner. The pegs need to be a good metre or so long, so they stick well out of the ground - you'll see why in a mo.

Now for the hard part - getting it square. Go back to the first peg. You want to measure 21 metres at right angles from the long side. Remember all those boring maths lessons at school - the ones when you did things with triangles? Well - it was all worthwhile after all! We need to lay out a right angled triangle - and the rules of one of these state that for a right angle to exist, the edges should have the dimensions of 3, 4, 5. So - we measure 28(4) metres out along the long side and put in a peg, then we measure 21 (3) metres from the first corner peg, at roughly right angles and put in another peg (which will move a bit in a minute!), Now go back down the long side with your tape. and fix the end on the peg you just put in at 28 metres. Unravel the tape so you have 35 (this is the '5' side of the triangle) metres (the black line in the drawing below), and walk over to the short side where we just put in the temporary peg. Using the tape, and keeping it tight, draw an arc on the ground with a bit of sand or powdered chalk. Now take the end of the tape and put it on the first corner peg, and do the same thing at 21 metres - draw an arc, and where it intersects the first arc, is the exact 90 degree point - which should be pretty close to your temporary peg - put the temporary peg at the intersection of the arcs, and that's it - you now have a 90 degree end to your school. Do the same at the other end, and then check the length of the second long side - it should be 41 metres - if its out a bit, you need to check your 90 degree corners - do the 3,4,5 bit on each corner and work back, checking measurements until you are happy its properly square - nothing worse than a wonky rectangle to ride in..

how to mark out a manege ready for construction
Finding the Right Angles.

Pythagoras's Theorem of Manege Building..

Now comes the interesting bit. We have to get it all flat, before we can put the fencing around it, with the boards which hold the surface. At the moment I'll assume we have a ploughed field or something similar, which needs to be levelled. The first thing to do is find a friendly local digger driver, or persuade one of the farm hands to get the JCB out - you're going to have to move a lot of dirt. Work around the entire area first, stripping the topsoil and grass. This has to come off, so we don't get an organic, soggy mess under the drainage bed. The last thing you want to hear when your horse wanders across your nice shiny new manege, is squish, squelsh from somewhere down below. Topsoil is generally quite thin - we are looking to take off the grass, with about 3 or 4 inches of soil below it. This should be either spread over the adjacent field, or stockpiled - there are plenty of people out there who want soil - so if you leave it for 12 months to rot down the grass, it will be nice saleable stuff that an advert in the local paper should get rid of. So... I'm going to assume that you have now removed the topsoil - and that the entire area now looks like a bomb hit it - that's good - we're on the way to building a manege.!

Next, we have to level it. This is the single most critical phase - get this wrong, and your dressage will be more uphill than downhill, and jumping becomes cross country. The kids dont mind, but when Aunt Caroline brings her nice shiny warmblood to come and have a play, she won't be very amused to be doing downhill piaffe.

Remember those 20 odd pegs? We need to spread them in relatively orderly lines down the edges and through the centre of the school. One overy 4 or 5 metres will be fine for the moment. Happy banging - I want to be able to walk around in the school area and walk no more than about 4 metres in any direction till I come up against a peg.

Done that?

Now we have to find a way of working out exactly how much ground needs to come out (Notice I don't say 'go in'). It is CRITICAL that you don't 'fill' hollows unless you use engineering practises that will fill them the right way - if you put newly excavated soil into hollows, it will sink over 12 months by as much as 25% - and Aunt Caroline will be VERY annoyed that the surface now resembles a kids sand pit, with dips and hollows all over it. We have to excavate to the level of the lowest point - OR, if we are to fill, we need to use clean graded stone, which is whackered down into the holes (Whackering, or Rolling, involves the use of those very noisy vibrating plate compactors, or a Bomag roller). You MUST stick to this requirement, otherwise it is certain that the final surface will develop problems - hollows, dips with water in them, soggy bits - its inevitable. DON'T use building rubble to fill holes - I've just done expert witness in a court case where this happened, and the results were not pretty - you should NEVER use builders rubble, demolished barns and buildings - for fill - it doesnt work.. OK... so I've made my point, and now we are going to work out how to find the levels:

What we need to do is establish a 'datum' - a point to which we reference all our measurements. There are several ways you can do this - but the easiest is to buy one of those laser levels that just about every tool shop, hire catalogue - B&Q, Screwfix etc sell. Make sure you get one that has a good range - at least 40 metres. Mine is a Pentax that will level up to 200 metres, with a rangefinder that can fit on the boom of an excavator so the driver can work to within millimetres - but all you need is something to throw a laser line around the area so you can measure down from the line to the surface at each of the pegs. Start to get my drift? So... we'll set up the laser on its little tripod, and make sure that when we turn it around, it always stays dead level. If like me, you have a rotary laser, it does that itself. If its one of the cheaper ones, you can do this at night - its quite good fun, except you keep walking into the pegs. Put a peg in by the laser, and mark the height of the beam onto the peg for future reference. Now mark up each of the pegs with the laser - put a black indelible ink mark on each one at the datum level. You should be able to look from peg to peg, and see all of the black marks line up exactly on the same plane. Imagine this as an invisible pane of glass, horizontally above the manege surface, that we're measuring down from. What I now do is go around with a tape and measure from the datum to surface level - this will tell you exactly how high and low the ground is across the area of the manege. It helps at this point if you draw a mickey mouse plan, and put all of your measurements on a piece of paper. Take the lowest point (assuming at this point we are not going to fill with stone) and work out how much material has to come out at each peg, to get it all level. At this point, your friendly JCB man comes back with a dumper - you'll notice I put the pegs at about 4 metre intervals - you can drive a machine around between them and load out into a dumper... clever huh.. There's a bit of fun involved here - once the surface is nearly ready - you'll need to spend an hour or two with the JCB driver and the laser, checking, re-checking and measuring to make sure you have everything bang-on. You can do this by making a levelling stick with a cross bar on it - put a couple of marked sticks at either end of the manege, with horizontal bars on them which are set at exactly the same height - then walk all around the school, making sure you can eyeball both the marker sticks, and see whether the one you are holding lines up with them - it might be a bit high, in which case Mr JCB scapes out a bit more where you are standing.

At this point, we should have a surface that a good digger driver can level to within about 2 inches across the whole area. Please restrain Aunt Caroline at this point - it might look very nice, but it can turn into a claggy horrible mess very quickly. We now need to pray for dry weather, so we can dig out the drainage bed. PUT THE HORSES AWAY!!

Doing the Drainage Thing..... Your Manege needs to Drain...

Now there's a whole philosphy, design approach here, that can get a bit involved. This is the most important thing to get bang-on. Get the drainage wrong and you'll have a wet manege - so - LISTEN CAREFULLY and design the thing correctly from the beginning. There is no 'absolute' way of doing this - but the idea is to collect all the water that falls on the manege, and direct it into a 'spine' drain, which takes all the flow, and drains it away from the area. We need to take the outlet drain right out of the area and into a nearby ditch, stream or stormwater drain - so this needs to be checked from the outset. There's no point collecting all this water if you can't get rid of it - so if at the outset, we decide that we have to build the manege surface a bit higher to allow for drainage, you need to take this into consideration when doing the levelling. It is quite possible to puild a surface on top of the subsoil, so that everything is contained in a box above the surface - you might have to do this if living in very low-lying areas that flood all the time .

Very large drain for a manege

Very large stone lined drain for a menage... You might not need a drainage pipe as big as this one... ... but its worth making sure you can get the water away fast enough!!!


(Actually it's the entrance to our mine.... )

Designing a drainage pattern for a manege

OK - so now we have to design the drainage pattern. I'm going to assume you have a place for it to go - now we need to put a network of drains into the base that we have just levelled.

Drainage pattern for manege construction
This is the most typical 'herringbone' pattern that we work with - the main spine in the middle drains to the left, with the herringbone drains all running from the outside edge of the manege to the middle, connecting with the spine.

Detailed drainage design for a manege

In the diagram above, each of the dotted lines is a drain - in its own trench, that has to be dug into the base that we have nicely flattened. They must all have a 'fall' which is calculated at around 6mm per metre. So, the fall of the main spine, over the 40 metre length, from right to left, is 24 cms. Each of the drains running into the spine needs to fall about 12 cms from the outside to the spine. So - you've now got to get those pegs working again - and lay out the pegs into the drainage pattern, and get your JCB man to come and dig a load of trenches, with sloping bottoms as in the diagram above. Its careful work - the trenches need to start at the right hand end being about 15 cm deep - just deep enough to put a 4" (100mm) perforated land drain into, with stone around and over it.

Drain construction for a manege
Now then - this is what your trench should look like - first - you line it with Terram geotextile membrane (you can buy it from us if you like - we can supply terram and drainage pipe anywhere in the country, carriage included) - its coloured red in the diagram.

Then.. you lay the pipe (100mm, perforated land drain) in the bottom of the trench, with 40mm clean gravel around it. This must be clean, preferably not limestone, which is very dusty and clogs the pores of the drain.

Make sure you have loads of terram matting spare on the top - it should extend at least a metre on either side of the drainage trench, so that when the base layer of membrane is laid over everything, the trenches are completely sealed from any soil which might otherwise be able to get into them and block the pores.

So now you have a drainage bed, with lots of stone all over the place too - by now, your nice flat surface should be flat again, with a herringbone pattern of nice white membrane, filled with clean stone. It's about time to get that fence in, with the boards around - this will hold the next layers - the drainage bed itself, and the surface - which Aunt Caroline is presently chomping at the bit waiting to play with. Now about now, you might like to pack her off to have a look at surfaces. You'll need to make a selection fairly soon - and they dont come cheap. We like the waxed surfaces - Peter rides on a Martin Collins surface which cost a fortune, and Aunt Caroline would drool all over it - her nice warmblood would bounce admiringly, and his piaffe would positively ping...! However - it costs a LOT, and you might want to have a look at some of the budget riding surfaces that are available from other suppliers - Equestrian Direct do some really good ones made from shredded carpet material - you might be told not to bother with a drainage bed - but DO!!! You MUST lay stone on top of the surface, with membrane the way I'm going to show you. Do anything else at your peril - you'll waste a helluva lot of money on blocked drains.. trust me - I've seen it time and time again.

Budget surfaces are hard to find - we've been working on one way to achieve this - and can supply a mix which you can add to silica sand to create a lovely springy surface - its been developed in Germany for dressage riders - and is a chopped fibre / rubber fibre mix. As a budget price, you can buy enough of this to do a 40 x 20 m school for around £4000 - so add this to the cost of the silica sand for the total surface cost. It is mixed into the surface with a power harrow or stone burier. There is a similar surface sold which is called Turf Float - but the material we use also has rubber fibres added to it, which binds the sand and makes it a lot springier. It comes packed on pallets, so you just spread it on the surface of your sand, and then mix it in. After years of research, I reckon this is one of the best alternatives at the moment for a budget surface. We source it from the people who actually make the geotextile membrane, and it contains finely chopped bits of membrane - the photos below give you some idea...

Fencing - the easy bit!

Right - at this point you need to get that fence going - Caroline is zooming all over the place collecting samples, and you can get on with the fence - I'd use a 12 foot gate at the very least - you need to get a tractor or quad bike in there with a leveller - Caroline will want the surface graded every time she rides, so the piaffe is nice and even. If you have to squeeze through the gate, its only a matter of time afore you hit the post and demolish part of the fence - tractors just do that sort of thing.. We normally use rectangular cut posts, treated of course, and at least a metre into the ground - they should stick up ABOVE THE FINISHED SURFACE by 4'6" (about 1.4 metres) preferably. This means you have to allow for posts 1.4, plus 1, plus the thickness of the surfaces - which should be 150mm of stone, and 150mm of surface at the least - so make your posts 2.7 metres long, and 150x100 mm section. Big, chunky - and wont get pushed over by horses. Rails are usually supplied in 12' lengths, so you'll want a post every 6', with big solid posts in the corners and at the gate - I normally use 200x200 for the corners. You'll need 3 equally spaced rails, preferably about 120mm wide and 60 mm deep - we're going for a good solid fence here. I'll leave you to work out the numbers - but its a lot of timber. Last, but not least, are the retaining boards for the surface. I tend to use treated boards, cut to 7 inch wide, and an inch thick - if you lay 1 board at ground level to retain the stone, and another above it, butted up, to retain the surface, you should have about 2 or 3" of board standing proud around the bottom of the fence, to stop surface material from kicking over the top or blowing away.

Fencing diagram for manege construction
Now this little lot is your ideal section:

Red is membrane - two layers - one lot over the drains, and stapled to the lower boards which retain the stone drainage bed. The other goes over the top to separate the riding surface from the stone.

Bottom board holds the stone - 40mm clean washed stone with no dust.

Top board holds the riding surface that Aunt Caroline has hopefully now decided upon...

The black bit on the left is the fence post of course... just checking.. You'll need 3 rails on it, but I didnt draw those..

Now for the membrane...

Ok - so we've done the fencing - you have the boards fixed as in the diagram above. So now we bring in the membrane. You'll need 3 rolls, of 100m long, by 4 m wide. I know - if you work it out, its 2 rolls - but you need more - here's why. Your 2 rolls will exactly cover the 40x20 area. The third roll will give you the 1 metre overlap of each run down the school 4 metres wide, it'll give you the bit at each end where you run it up the boards and staple it, and ditto at the sides. Dont forget we made the manege (menage) 21x41 metres as well - so we had room for the dressage markers and cones. That's where the three rolls comes in. If you order 6, you'll have the right amount for the layer on top of the stone too. Order some wide double sided sticky tape too - they usually sell the stuff with the membrane. Email us, and we'll sell you some - we have an arrangement with the manufacturers and and can send it out, together with drainage materials, carriage paid direct to your door. Current price per roll for non-woven membrane, delivery included, is £142. We can supply drainage pipe with the same arrangement - email us and we'll put you in touch with our supply warehouse directly.

So.. start stapling and unrolling, and taping your joints. I generally hold the membrane down with little piles of stone so the wind can't blow it away. When it's all unrolled, cut, stapled, held down and flattened off, Aunt Caroline will be slobbering uncontrollably - it now looks like a manege (menage)....

What stone to use for the drainage bed of your menage?

Well - this is the pricey bit. At around £25 a tonne, you are going to need a lot of stone. You need to be using clean, dust free 40mm stone. Don't be tempted to use bigger than this - its horrible - it may be cheaper, but you'll never get a flat surface. You want 40mm clean stone - not limestone if you can avoid it - although the hard bluish grey limestone is ok if IT IS CLEAN OF DUST!!! Don't get thata soft, crumbly Cotswold stuff that breaks down in 5 minutes and forms a rocky, dusty cake that would make a base for a nuclear missile silo - you want an open, porous drainage bed. Don't get mixed sizing - quarries will try to sell you 40mm to dust - NO! You want Clean, 40 mm - that's it. Nothing more, nothing less. Preferably granite or dolerite.

And so to the amounts... 41 x 21 x .15 equals about 130 cubic metres of stone to fill the bed to 150mm depth. At a specific gravity of about 2.4 tonnes to the cubic metre, that's just over 300 tonnes, or using 17 tonne waggonloads, 18 loads. Or £7000 or thereabouts. Start tipping in the gateway, and always work over your stone so you never touch the membrane. At this point, your friendly JCB driver needs to be VERY careful not to slew the machine around and grind the stone in circles - the membrane underneath will move and tear - and you'll be in real trouble. This is a very delicate, careful operation - do it right, and you have a surface for life - get it wrong, and Caroline will be piaffing to a delicate squelching noise. You should, after 18 loads, and careful JCBing, have a nice flat surface, checked by your driver with the same laser level and staff we used before, which is + or - about 25 mm in level across the surface.

And now for the boring bit - more membrane...

Remember the other 3 rolls - you need them. Same thing - staple about half way up the edge of the last retaining board so you don't have unsightly white membrane sticking up above the surface - then roll it out and tape it as you did before.

Woo Hoo!!

You are now ready to install Caroline's newly purchased sooper dooper All Weather Riding Surface, which, depending on her pockets, is either waxed sand, with all sorts of nice additives like bits of carpet, fibres, bits of shredded rubber door seals, and whatever else the manufacturers can dream up to chuck into it, or she might have had a bad time on the stock market, in which case we're talking about shredded carpet out of old cars at a bargain basement price, with some chopped old tyres thrown in for good measure. Surface selection is a HUGE subject - and we are happy to talk about it - but not right now.. Discussion welcome - we charge £10 a minute, payable up front, and we'll give you lots of samples if you bring a carton of beer for the boys. Seriously though, we've seen a lot of different surfaces - and there are two companies that stand out as Premium and Good value - a bottle of wine, and we'll tell you who they are - check the photo on the manege page for one of them. Riding surfaces should be nice and soft, but not running, so your horse goes through the sand and breaks into the membrane - that's why we use binders like fibre to hold the sand together. If the sand is waxed, it makes for a really good horse riding surface - and if it is also bound with fibre and rubber, it becomes slightly springy, so you can do showjumping with no danger of going through the surface and into the membrane below. A good surface for working with carriage horses and carriages is waxed sand too - it's lovely and springy, whilst not allowing the wheels to sink into it.

Same calculations as for the stone - you'll need 130 cubic metres, and slightly less weight, but the actual waggon loads will be about the same because the weight / volume relationship changes. Maybe a couple of loads less.. When it arrives, same approach. Work over it. Never slew the machine. Gently, bentley. Get it level, run the laser over it - then hire one of those big Bomag road rollers you sit on, and drive around all day until the surface is nicely squished down and compacted. Wax surfaces need this more than sand / rubber, or just plain carpet fibres, which as you can imagine, are a bit hard to squish with a vibrating roller.

And then...

Crack The Champers For The Men that built the darned thing. Caroline will already be piaffing and pirouetting on her nice shiny new All Weather Riding Manege ( Menage ), and the rest of you can now settle down to arguing about the relative merits of which tractor / leveller combination is best for grooming the surface. Now that's another story, for which we might have to introduce another page to the site - Toys For the Boys - Arena Grading equipment, Menage Grading equipment, Manege Levelling and Grading ... I'm not sure what to call the page, but we'll find something suitable. We'll have to do another page for the tractors, then the sooper suckers for the poo... the list goes on.

Budget for menage construction:

Depending on the final surface, this figure can vary a great deal. There is, however, a bottom line below which you really cannot go - this works out at around £15,000 and is based on the appropriate quantities of materials described below, with a rough allowance for labour and machinery to build it. If someone quotes less than this - they are cutting corners somewhere - go through the quote with a toothcomb - check specifications for materials, and insist on samples of everything before committing. I've seen schools built that have cost upwards of £100,000, but never much below £18,000. 

Working Surface for your menage:

This is the point at which we see the most variance. To some extent it is covered in the next section, selection of appropriate surface, but we'll briefly discuss surfaces here too. To protect the membrane which covers the drainage bed, we usually use a layer of clean, washed silica sand. This is NOT the material sold in Cornwall and Devon as silica sand, which is a clay ridden by-product of china clay mining. It usually comes from the quarries in Cheshire which are worked for foundry sand, and contains little or no fines and impurities. You need to allow for a depth of at least 50mm, preferably 100mm. Translated into volumes and tonnes, you are looking at around 80 cubic metres, (at 100mm thickness) or roughly 140 tonnes - assuming decent sized lorries carrying 12 to 17 tonnes, you are going to need at least 9 or 10 lorry loads.

There ARE surfaces around these days which don't need sand underneath them. If you are using the shredded carpet / insulation material derived from scrap cars, a 6 to 9 inch layer of this material can be laid directly on top of the membrane. ( There are some vendors who insist that with this material you dont need a membrane over the stone - DON'T omit the membrane - its a fatal error you'll regret!) I would still protect it with a little sand anyway - just to prevent sharp hooves nicking it, but it comes down to choice and budget at this point. Essentially, if the material you are using doesnt break down in any way (eg shredded carpet / insulation, medical rubber or shredded window seals) you can get away with it. Shredded car tyres do tend to break down and block drainage beds after a while, so be careful that if using this material, you make sure it cannot get to the drainage bed. It is also on the list of nasty environmental stuff that councils won't approve these days on account of toxic runoff. Our worst case surface is shredded wood - several vendors are offering shredded pallets, claiming that they dont break down - I've seen a surface made from this material which in 2 years had almost rotted away. Bark chip is the same - it rots down, breaks up, and produces large amounts of dust in summer. Steer clear from it if you can afford to - its a false economy.

What surface to select.. sand, or a mix...

This is a tricky question to answer at the best of times. We always say to people that they need to go and ride as many surfaces as they can before making a decision. If you can't ride it, ask people. Try to ask professionals who know the effect the surface is having on their horses and riding - and ask showjumpers as well as dressage riders. You will need to give thought to what you are using the manege (menage ) for - if you are mostly jumping, it is more important to protect the membrane with sand, and to select a surface that gives a little natural spring - if dressage, try to avoid anything that your horse sinks into or that causes him to drag his feet. In general, surfaces for jumping tend to be bigger, springier materials than those for dressage - the shredded carpet / insulation material is ideal for this, although it can be used for dressage too, because its fairly light, and tends to bed down over time into a springy mat. Silica sand with shredded door seals, medical rubber, or chopped telephone cables are all good surfaces for flatwork. The best surfaces these days tend to contain wax - it holds everything together, stops the sand blowing away, and provides a springy, resilient surface - but... it's expensive, as the best always is. Sand should always be clean silica sand, preferably the stuff from Cheshire - NOT yer average building sand which has clay content and is suicide for a manege.

As I said before - budget surfaces are hard to find - we've been working on one way to achieve this - and can supply a mix which you can add to silica sand to create a lovely springy surface - its been developed in Germany for dressage riders - and is a chopped fibre / rubber fibre mix. As a budget price, you can buy enough of this to do a 40 x 20 m school for around £4000 - so add this to the cost of the silica sand for the total surface cost. It is mixed into the surface with a power harrow or stone burier. There is a similar surface sold which is called Turf Float which is very good too- but the material we use also has rubber fibres added to it, which binds the sand and makes it a lot springier. It comes packed on pallets, so you just spread it on the surface of your sand, and then mix it in. After years of research, I reckon this is one of the best alternatives at the moment for a budget surface. We source it from the people who actually make the geotextile membrane, and it contains finely chopped bits of membrane - the photo gives you some idea:

If you would like to consider using this surface, cost for a 40 x 20 manege is approx. £4,000 delivered to your door. Delivery charges vary a bit, as does final price depending on euro exchange rate. We think this is one of the best alternatives out there at the moment - its used on a lot of surfaces in Germany, and those guys know how to do it right.

Fibre additive for building a manege
Fibre additive for building a manege. Note the fibres amongst the white bits - they are springy bits of rubbery elastic which give it bounce.
fibre additive for equestrian manege surface
fibre additive for equestrian manege surface. This stuff is sold by a few different companies as an additive - one trade name is Turffloat.