Measure the space and decide the desk size
Choose a desk design and style
Gather materials such as wood, screws, brackets, and finish
Gather tools such as a saw, drill, measuring tape, clamps, and sander
Cut the desktop to the desired dimensions
Cut the legs and support pieces to size
Sand all wood surfaces smooth
Assemble the frame with legs and supports
Attach the desktop to the frame
Reinforce joints with screws, brackets, or wood glue
Check that the desk is level and stable
Fill holes and sand again if needed
Apply stain, paint, or sealant
Let the finish dry completely
Move the desk into place and test it for use