Step Three – Measure and Cut Each Board
Before cutting, sand each board with 120-grit sandpaper. Next, cut each board according to the design in your plans. Start by cutting the boards to the length of your platform, and then cut them into smaller pieces. In my case, I cut the boards to 50.5 inches, which is the total length of the headboard less the width of the two posts, then cut each board at various lengths to make many non-uniform pieces.
When you finish cutting, lay the wood pieces out on the floor to match the design you made on paper. Make sure that each row of wood pieces measures to be exactly the same length. If they are not the same length, the platform will not attach squarely to the posts.
Last, cut the posts to your desired height. Posts for beds without box springs should be shorter than posts for beds with box springs. Because my design is for a bed with a box spring, I cut the posts to 56 inches.
Step Four – Stain and Finish the Wood
Stain each board, including the posts, with your various stains. My plan was to make the headboard look like a collection of different wood types. Let the stain dry overnight.
After the stain dries, apply three coats of polyurethane finish. Each coat will take about three hours to dry. After coats one and two dry, lightly sand the boards with the 220 grit sand paper until smooth, then apply coat three