Building A Concrete Wall On Concrete Slab

Run a chalk snap line.

Building a concrete wall on concrete slab.

All concrete block walls must rest on a sturdy foundation of poured concrete. Then fill the holes in the slab with hydraulic cement. Remove the curb and clean the slab thoroughly with a wire brush. Set and level one side.

Your local building code may call for the wall to be anchored to the slab with threaded rods. The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line. If you want to build a concrete retaining wall you should consider pouring the wall rather than making it out of concrete blocks. Project step by step 16 prepare the site.

How to build a wall on a concrete slab step 1. A poured wall is much stronger and generally last many more years than a block wall. Position the snap line across the marks that indicate one of the wall s ends and snap a line to lay out the. Stretch a tape measure across the concrete slab and mark the position of the wall s ends.

Pouring a concrete retaining wall is not that difficult and this easy to follow how to guide will show you just what to do. Cut a 2x12 to length or splice it with a cleat for one side of the concrete forms and nail it.