How to Make a Filing Cabinet Desk Top

For this project, I used 2 x 6 x 8' long lumber. Lumber typically comes with rounded edges. In order to get a nice clean edge, without the rounded edges, I ran the wood through my table saw to make a nice straight edges.

I secured the pieces of wood together using pocket screws. Using my Kreg jig, I drilled several pocket screw holes per board.

I used both wood glue and pocket screws to secure the four boards together. I clamped the wood together while I was screwing them to make sure they stayed aligned.

To make sure that the ends were perfectly straight, I cut them with my circular saw. I clamped a piece of wood to the desk top for a straight edge guide and to cut off as little material as possible.

I filled any small gaps or voids with a stainable plastic wood filler. This is not necessary, but will give the table top a nice, solid finish.

I don’t have a planer and the seams were not perfect. I simply sanded down any ridges with coarse sandpaper. I finished it off with 220 grit sandpaper to make sure it was smooth.

Before I stained the desk top, I applied a pre-stain wood conditioner. It is best to use this with softer woods. I then stained the top with dark walnut. Since desks usually get a lot of wear, it is important to seal the wood after staining. I applied two coats of polyurethane.

I spaced the filing cabinets about four feet apart. I placed a piece of rubber drawer liner on each top of the filing cabinets to ensure the top would not slide around. You could easily secure the desk top to the filing cabinets by screwing through the top of the filing cabinet into the desk top.