Run a chalk snap line.
Building a concrete wall on concrete slab.
Stretch a tape measure across the concrete slab and mark the position of the wall s ends.
Cut a 2x12 to length or splice it with a cleat for one side of the concrete forms and nail it.
Contact your local building department to see whether a permit is required and how close to the lot.
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.
Your local building code may call for the wall to be anchored to the slab with threaded rods.
If this is the case drill through the curb and into the slab with a roto hammer every few feet.
Then fill the holes in the slab with hydraulic cement.
All concrete block walls must rest on a sturdy foundation of poured concrete.
Stake and brace the side form.
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.
Set and level one side.
Position the snap line across the marks that indicate one of the wall s ends and snap a line to lay out the.
Remove the curb and clean the slab thoroughly with a wire brush.