What wood type and thickness is recommended for bunkbeds over bunkie boards?
Asked by Eduardo Amador 
5 months ago
Last Updated: June 11, 2024
What type of wood and how thick should it be for bunk beds instead of using bunkie boards?
Plywood is superior to particleboard; beaver board may initially seem sturdier but the edges tend to crumble, especially in humid conditions or when exposed to spills. Plywood has some flexibility but remains durable. Prior to purchasing, inspect the sheet for any large cracks.
I opted for the thickest plywood available at my local lumber drive-thru, which I believe was 5/8” sanded. It supports all four of us (550lbs) on a twin bed during playtime.
As an added bonus, the staff at the yard can usually cut it to size for you with ease.
For 3/4 plywood, I would suggest using sanded ply or poplar since they are denser and less likely to warp. After installing the plywood, cut the bunky boards an inch shorter than the span between the bed rails and attach them to the bottom of the plywood evenly spaced between the bed rails to keep it straight and prevent warping.
Using plywood might be tough on your back. I’d recommend using rope.