Step 1
Sit in the office chair with your arms at your side, bent 90 degrees at the elbows, and have an assistant measure the height to the bottom of your hands. Subtract 1 inch from the measurement to determine the leg length of your desk.
Step 2
Measure and cut all four of the 4-by-4-inch posts to your determined height. Sand the edges of the cut ends of your post to eliminate splinters.
Step 3
Spread the blanket out on the floor and place the melamine board on the blanket so that the working surface is facing downward.
Step 4
Measure 4 inches in from each side at each corner and make a mark. This will define an L that you will use to position the legs of the desk.
Step 5
Position a leg so that it fits against the L mark and line up 4 L-brackets, one against each side of the leg. Insert two 1-inch wood screws through each L-bracket into the leg ensuring that the other arm of the L-bracket is flat against the bottom of the melamine board.
Step 6
Check that the leg is still snugged against the lines you drew on the back of the melamine sheet. Secure the L-bracket to the bottom of the melamine sheet with 3/4-inch particle board screws. Turn your desk upright and position where desired.