New shed base

[DanJob]

Hi

I need to lay a base for a new shed i wish to erect on my back garden, i intend to used existing paviers which i've removed from an old patio. The site for the new shed is currnetly used 50%as a vegatable plot which is well cultivated soil and 50% uncultivated (estimating 5+ yrs) firm soil with clay sub-soil.

What i'm thinking is where its is cultivated i need to remove the topsoil down to the clay sub-soil and fill with hardcore/rubble and top with 100mm scalpings or type 1 fill before my 50mm bedding sand cement mix. My question here is where and what is the cheapest fill material i can get and is suitable to build up the level? (its about 1 1/2 spades depths to clay sub-base) so about 300mm of fill needed before the type 1.

The area which is quite compact will i be ok just to remove the top 100mm of soil and just lay the bedding mix to level the paviers or should i remove extra soil and incorporated a layer of type 1 fill also. what thickness would you suggest (in light of the 300/400mm of fill i think i'll need for the cultivated side)??

I don't mind the time/efford digging just want to keep the cost down and do a propper job.

Cheers in advance.
Dan.

[rab1]

I`d read the main site mate, a shed should be built on a concrete base etc. i dont know how to post a link but i`m sure someone will.

[GB_Groundworks]

the cheapest in normally clean hardcore. this of course is never clean its full of wood plaster board and all other assorted building site crap: shoes etc haha but you only get that in direct loads(20 ton) normally as pre fill in really bad ground.

so crusher run is your next best bet:- 4.50+vat/ton is a v.good trade price expect to pay alot more

if you have enough existing flags you could go to work on them with a sledge hammer and make your own sub fill be ok for a shed base

you need to start on firn soil though, so good test being if you can't push your finger in or boots don't leave a noticeable impression

a small shed will be alright on well compacted and level mot type 1 sub base with flags bedded on 4:1 sharp sand, green houses need to be on a concrete ring.



Edited By GB_Groundworks on 1264447573

[DanJob]

Thanks Groundworks, i'll make some enquiries.