Measure the width of the armrests of your particular treadmill from the outside edges.
Next, measure the depth that you want your desk to be. It should comfortably hold a computer without taking up too much room on the treadmill. (Around 30cm is good.)
Cut the wooden board to the measurements calculated above. (Mine was 92cmx30cm)
Screw two eye hooks on either side of the board; one at the top, and one at the bottom. You can use a drill to drill small holes where you want to place the eye hooks to make it easier to screw them in place.
Cut the wood strip to the same width as your desk (or use a smaller pieces that you have on hand).
Screwed the wooden strip in place at the bottom of the desk using the 3 screws. Again, to make it easier and to keep the wood from splitting, drill small holes in place where you want to place your screws. For a more professional finish, use a countersink drill bit to hollow out enough of the wood for the screw to fit flush with the board.
To use the desk
Place the desk on the armrests of the treadmill. Hook it in place with the two bungee cords. I loop one cord around the back of the treadmill and hook it on the back eye hooks. Next, hook the other cord from one side to the other underneath the handrails.
If it feels more secure, you can cross the bungee cords, wrapping both around the back of the treadmill.
Recipe printed from Oh, The Things We'll Make! Blog. https://thethingswellmake.com/easy-diy-treadmill-desk/