3/4 in plywood
Table saw (TechShop)
Chop Saw (TechShop)
Cordless Drill (TechShop)
Drill bit (TechShop)
Counter sink bit (TechShop)
The French cleat is an easy way to hang heavy stuff. It simple to make and cheap. One of the members gave me this piece of hard maple, I was going to make some frames out of the wood but as it was sitting at my house I want to see what it would look like on the wall.
Step 1: Cutting the French Cleat
If you only have a one piece of wood, you can rip the 45 degree angle edge of the ply-wood, and then cut the wood to size on the chop saw. All you really need are two 45 degree angles that can lock in to each other.
Cut down to the size that is needed. When cutting the cleat on the chop saw, be sure to keep the larger surface area on the bed of the saw. The wall mounted cleat should be just a slightly longer.
Step 2: Marking and Drill Holes
Mark out cleat where you want the holes to be. Bearing in mind that when you install the cleat that the wall mounted cleat is mounted with the Sharpe point away from the way and it pointing upwards. And the cleat the in on work or cabinet the sharp point the pointing down and away from the work.
I predrill my holes and counter sink them in the cleat. Attach the cleat to your work or cabinet and to the wall. Hang your cabinet or work and you are done.