You now have a level concrete block foundation on which to build your shed. sloped site. there are two ways to build a foundation for a sloped site. 1. dig into the slope to make a level base for your shed. you may need to build a retaining wall to keep the soil from falling in on your shed over time.. Knock other pegs into the ground every 30 cm (12 inches) in a rectangular configuration slightly smaller than the shed base. professional joinery suggests the concrete base should be 25 mm (1 inch) smaller than the shed base all the way around. this is so rain will drip off the shed beyond the foundations rather than directly onto them.. For installations on sloped ground, youll need to get more creative with a shed foundation designed for slopes and hills. this alternative method for supporting a shed uses post-and-beam construction over poured concrete footers to achieve a level surface for the shed..
A concrete shed base is the strongest type of shed foundation. it is at the heavier end of the work you will do to build your shed. this article will help you to decide if you really need such a heavy duty solution or if something a bit lighter and simpler to install would work just as well.. Installing a shed base on uneven ground can be a little tricky. for most people, this isnt an issue. so, if you will be building a shed base on flat ground, read our article how to build a shed base.as the gradient on the sloping ground becomes steeper, the problem becomes greater.. Concrete piers for sheds may be necessary if the shed site has considerable slope. unlike setting a shed on blocks, which are also built in piers, concrete piers go fairly deep into the ground, and are a permanent foundation. concrete piers are built by digging holes, inserting tubes (called sonotubes), and pouring them full of concrete..