How to Build a Concrete Block Wall Above the Frost Line
Building a concrete block wall can seem difficult at first, but by following a few instructions it is easier than you think. First you will want to check with your community's building department to determine whether or not you will need a permit.
Step 1 - Digging a Trench
Just below the frost line of your wall dig a trench. Make the area wide enough for the wall. You will need enough space to dig and pour.
Step 2 - Making the Forms
Saw 3/4 inch plywood into panels that are 3 inches taller than the height of the wall. You will want to extend these panels above the ground. To ensure easy removal, coat the plywood with motor oil. Hammer nails to 2-by-4 lumber into the plywood. Space these pieces 20 inches apart.
Step 3- Assembly
Construct the form with pieces of plywood and 2-by-4 wood. These will be the interior spreaders. Once the form is in place, you will want to make sure they are level. Brace these with stakes. Next you will push the form into the ground and drive the stakes.
Step 4 - Finishing Up
Once the concrete cures, remove the forms and cap the wall with bricks.