Building A Concrete Shed Base On A Slope

Building a poured concrete walkway or a small slab.

Building a concrete shed base on a slope.

Select the site for your gravel shed foundation 1. The layout of your yard can make or break your shed foundation and shed for that matter. An 8 x12 shed would use 6 piers 3 per long side. Determine the angle of the slope.

Shed dimensions determine the number of piers you need. I built each shed on a floating slab with 2 inches of styrofoam underneath the the concrete. When building a shed on unlevel ground as the foundation grade becomes steeper the problem becomes greater. Dig into the slope to make a level base for your shed.

Start with 4 inch high blocks at the top if the slope is gentle. Once the piers have cured beams can be set in place on the piers or pier and post and leveled with shims. If you stick a shovel into a gas or electric line your day is going to get a lot more. If you are lucky your shed site will be relatively level.

Dig out about 18 inches of the existing soil and set this material aside to use for later. Start by digging out the soil to create a flat surface. You may need to build a retaining wall to keep the soil from. Laying a concrete block foundation for a shed 1.

Combine 2 4 and 8 inch thick blocks to get the proper height. This may still require a drainage ditch but probably won t need a. 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. There are two main solutions to building a shed foundation on a slope.

The second way is to build on the slope. 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. 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.

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. 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. Use 8 inch blocks for a steeper slope. Install 18 inches of crushed rock or a 3 4 inch crushed gravel for the sub base.