A cajon can and have been made from many things. Old drawers, packing creates scrap wood etc etc. But from all of that a standard form has immerged Here I want to take you through the basic method of building a Cajon Drum. The Cajon is going to be 30cm x 30cm x48cm. It will have a fixed internal snare and is going to be constructed from 3 different types of plywood. How To Build A Cajon Stage 1. To start we are going to cut the top the bottom and the 2 sides of the cajon. These are cut out from 9mm or 12mm ply . Two pieces 30 x 30 cm for the top and bottom and two pieces 48 x 30 cm for the sides. It is important to make good square cuts and lightly sand the edges so they are smooth and true. Any mistakes here will lead to a cajon which is twisted and unsteady on it\'s feet. After cutting the timber we need to make a groove in the top and bottom sections of the cajon so we can get a good glued joint to the sides . This is best done with a router. Router two opposite edges of the top and bottom on the underside. Make sure that the router cut is smooth and sand if necessary to ensure a good surface to fix the sides to . Once this is done we can start constructing the main body of the cajon.