Shed Concrete Base

Hi,

I've purchased a 3m x 4m insulated log cabin, which I'm going to use as a garden office. It's about 1 tonne in weight.

I need to put down a concrete shed base and I'm going to get the experts in to do it. I don't want to be conned and I want to ensure whoever does the job does it right.

We're on clay soil, so I am expecting a substantial hardcore base 10cm and ontop 10 cm of concrete

Does that sound about right?

Thanks, Nick

 

They haven't provided any guidance, I guess it depends on the ground type.

The office comes with an insulated floor, so it doesn't sit on the concrete base and comes with it's own insulation.

The only services I need is power, which I will add in after the office is in place.

 

Hi John - the shed will sit on bearers, so hopefully the weight should be fairly evenly distributed throughout the base

 

I would lay 2" of type one hardcore compacted then 4" of concrete with reinforcing mesh.

 

The cheapest I've been quoted £300 materials and £520 labour ... which sounds a lot to me for a slab of concrete :(

I'm wondering if it's really all that hard? The most difficult bit is probably getting the wooden shuttering level on the ground.

 

1 rekon two Days so £300 plus a hired high tip skip loader at £70 plus a skip at £90 then materials, £200 ish

Total around £700 give or take.

 

I would have give you a lift doing it if I lived near you, if your fit enough it's not a big job.

 

A ton over that floor space is not very mush.You could probably halve the depth of concrete. Ive seen a fish tank thats 6 foot long that when full weighs just under a ton and thats sat on just three slabs on a level bit of clay soil.If you have a good base for the concrete to sit on you dont need the extra thickness unless you were to use the base for a garage or driving a car on.