I make every camp bunk a double-decker. That way, when the upper bunks aren’t taken, there’s space to stow gear up top. I also designed the bed platforms to be wider than standard, which leaves spare room to keep some items beside you (or in case any guests are of the extra-large kind).
How to build it
**( 1 ) **Cut four 95-inch tree trunks, each between 4 and 6 inches in diameter at the top. Peel the bark. Cut a one-quarter-size pie wedge out of each post 15 inches from the bottom, and again 40 inches above the first. Create the two 96×54-inch bed frames by bolting 2x4s into the open wedges, bolting the lengthwise 2x4s first.
**( 2 ) **On each frame, lay in two more 2x4s lengthwise, on 18-inch centerlines. Screw in 5/8-inch-thick plywood sheets to make the bunk platforms. Use L-brackets to secure the poles to the floor and ceiling or rafters. Apply two coats of clear polyurethane. Put a spring mattress on each level.