Help with base for garden shed

BIGEYE

My old garden shed was rotten and beyond repair. It was built on a slab base, but was never level. The slabs were laid on that red sand/grit and had sunk/moved. The old shed was only sitting on the slabs at the periphery. Anyway, now to dry and do a better job.
Have have lifted the slabs and cleared all that red sand/grit. The soil itself is so soft, it is like wet clay. This is the lowest part of the garden, so all water seems to drain toward this point. Unfortunately, relocating the shed is not an option.
So how can I get a decent base for my new shed. I was thinking of maybe 50mm Type 1 compacted with a small wacker plate. Then 50mm of recycled glass paving sand from B&Q, and then 25mm sand/cement dry mix or slab crete. Then laying the slabs on top of that.
The shed is a 10' x 8' ft so no massive load on it. Any help/advice will be greatly appreciated.

mchale

That seems a lot of work, I laid (flat) about 15 concrete blocks into the ground leaving about 13mm above ground level, then laid 3x3 wooden joist's across them & then put shed on top of joist's, between the blocks & joist's I put a piece of 10mm plastic so the joists would not be sitting on the damp block's, been ok for the past 13 years.

BIGEYE

The ground is that soft, I think the blocks would move. Now thinking of just making a cement slab.

Cisco001

how about raising it?
http://www.wickes.co.uk/Wickes-Shed-Base-8x6/p/110574?CAWELAID=120135120000007229&CAGPSPN=pla&utm_source=google&utm_medium=cpc&utm_term=&utm_campaign=Google%20Shopping%20-%20Garden&tmcampid=&tmad=c&tmplaceref=7nTSProL&tmcustom=mkwid|s7nTSProL_dc|pcrid|43364563852|kword||match||plid|&gclid=Cj0KEQjwt763BRDZx_Xg3-Pv2cABEiQAoDfeGMWOT3p4J709gnRzmNh4-pH-S8wRuXnfN8znE0sp6tMaAtrA8P8HAQ

Or will plastic glass grid work?

http://www.amazon.co.uk/s/ref=nb_sb_ss_i_1_10?url=search-alias%3Doutdoor&field-keywords=shed+base+plastic&sprefix=shed+base+plastic%2Coutdoor%2C168

phil24_7

I did a slab for my shed which houses 2 1000L IBC tanks.

I just shuttered around the edge, covered the bottom in a lot of broken up stone, brick and blocks, then mixed up concrete to fill it. The whole slab is about 6 inches but only the top 2-ish inches is solid concrete. Make sure you leave enough space between the stones so that concrete can make it all the way down and that the top of it is above ground level y an inch or 2. I didn't even use a dpm on mine and it remains dry. Mine is like yours, at the bottom of a sloping garden with a clay soil.

BIGEYE

phil24_7 wrote: »

I did a slab for my shed which houses 2 1000L IBC tanks.

I just shuttered around the edge, covered the bottom in a lot of broken up stone, brick and blocks, then mixed up concrete to fill it. The whole slab is about 6 inches but only the top 2-ish inches is solid concrete. Make sure you leave enough space between the stones so that concrete can make it all the way down and that the top of it is above ground level y an inch or 2. I didn't even use a dpm on mine and it remains dry. Mine is like yours, at the bottom of a sloping garden with a clay soil.

This was the way I was going to go, but family didn't like the idea of a concrete slab. Going with compacted Type 1 and a sand and cement mix 5/1 ratio and applied dry. Level off and place slabs on top. The moisture/dampness should cause the cement to harden.

phil24_7

You could always create a skirt on the shed to hide the slab?!?!