There are two main solutions to building a shed foundation on a slope.
Building a concrete shed base on a slope.
The second way is to build on the slope.
For that reason we decided that building a post and beam foundation would be the best way to go.
Dig into the slope to make a level base for your shed.
Plan to set one concrete block pier at each corner of the shed in the middle of each wall and in the very center of the shed.
Balance the cut and fill by using the soil dug out of the slope to build up the platform for the shed.
Once the piers have cured beams can be set in place on the piers or pier and post and leveled with shims.
You may need to build a retaining wall to keep the soil from.
Start with 4 inch high blocks at the top if the slope is gentle.
How to build a level shed base with a retaining wall.
Install 18 inches of crushed rock or a 3 4 inch crushed gravel for the sub base.
You build a wood form over a compacted gravel base then place the concrete and finish the surface so it s level with the top of the form.
Before the concrete hardens in the piers set pier or post ties and align in place.
If you are lucky your shed site will be relatively level.
Last week i had the opportunity to help a friend build the foundation for a new shed that will be delivered in a couple of weeks.
The layout of your yard can make or break your shed foundation and shed for that matter.
Start by digging out the soil to create a flat surface.
An 8 x12 shed would use 6 piers 3 per long side.
If you stick a shovel into a gas or electric line your day is going to get a lot more.
Select the site for your gravel shed foundation 1.
His back yard has a bit of a slope and it would take too much concrete to pour a slab read how to pour a concrete shed foundation here.
Building a poured concrete walkway or a small slab.
Combine 2 4 and 8 inch thick blocks to get the proper height.
Shed dimensions determine the number of piers you need.
Determine the angle of the slope.
I built each shed on a floating slab with 2 inches of styrofoam underneath the the concrete.
If you only need to build a shed base on a slight slope this can be achieved by cutting into the slope slightly on one side and building up the crushed stone on the other.
Dig out about 18 inches of the existing soil and set this material aside to use for later.
When building a shed on unlevel ground as the foundation grade becomes steeper the problem becomes greater.