Groundwork & Foundations Question

Shed base on sloped ground

I am planning to put a shed\summer house in the rear left of my back garden. The ground slopes both to the right and down towards the house so I have dug the size of the shed (10 x 8), but as I got nearer to the 2 neighbours fences I realised that I probably don't want to dig down too near them for fear of compromising their fence 'foundations'. So I now have a relatively firm, flat area of ground with a raised area of soil around it. I have decided to make the area nearest to the neighbours fences into raised bed areas so I will separate it off with large gravel board etc to prevent any soil falling against the shed.

My question is, in the area that I am going to put the shed do I need to add a layer of hardcore or sand etc or can I just put my shed base straight down on the soil (I am planning to go for the plastic pro-base type base and fill with shingles for drainage around the perimeter of the shed)?

I forgot to add that access to the garden is only through the house so I am looking for a minimal mess solution

2 Answers

Hi malkaul

I would always recommend using a hardcore base for any shed base as it is carrying weight, this also will stop the shed base dropping or skinking, in an ideal world I would use type one MOT and compact with a plate compacter to achieve the best results!

Hope this helps you out!

Answered 30th May 2018

C Corrigan Plant Hire

Member since 30 May 2018

There are 3 types of bases you can use.

1. Platform base using a framework of timber raised above soil suspended on wooden posts or concrete. New shed can then be screwed to this if floor is included. If not a board floor will need to be added.

2. Concrete base. Shuttering. Hardcore or type 1 and minimum 100mm thick concrete.

3. Gravel board or slab base. Where slabs of gravel boards are strategically placed and levelled depending on size of the shed.

Any of these are strong enough to support most sheds but without seeing lay of land and surrounding features it is very hard to distinguish best way to move forward.

Hope this helps.

Answered 8th Aug 2018

Chapman & son quality driveways and gardens

Member since 27 Jul 2018

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