Heavy-Duty Bunk Bed (Twin, Full, or Queen)

Drill 1-1/2" pocket holes in both ends of the end-rail slats and join them to two posts with 2-1/2" pocket screws — two per end. This ladder-of-rails panel is the open footboard end.

Build one per bunk bed, and decide NOW which face of each post is the wall side: every pocket hole in the whole build should land there.

Fill between the rails with the 1-1/2" x 2" blocking strips. It's listed as optional trim, but treat it as required on a kids' bed — the blocking closes the gaps between rails to a size feet and hands don't go through, and it stiffens the panel.

Build the headboard end the same way as the footboard, but leave the top slat off for now — the paneling in step 5 needs the opening.

Add the short post, the 19" slat filler, and its blocking to create the ladder opening. The source build substituted a 2x4 for the drawn 4x4 here — do the same, nobody can tell.

The 19" width only matters if you're matching a specific ladder or stair unit; if you are, get that dimension from the ladder first. Pocket screws where the jig fits, 2-1/2" self-tapping screws where it doesn't.

Fill the headboard frame with your paneling — tongue-and-groove laid out and brad-nailed, or a plywood sheet. This is the surface a kid leans against to read; pick material you'd want painted or stained, not sheathing.

Sand and stain every part now, before assembly — the inside corners of an assembled bunk bed are unreachable.

In the bedroom, attach the six side rails to the end panels with THREE 1-1/2" pocket holes and 2-1/2" pocket screws per rail end, pocket holes on the wall side. Two people, minimum: one holds a 75" 2x8 level while the other drives.

Attach the 2x4 cleats to the inside of the rails — pocket screws into the posts at the ends, 2-1/2" self-tapping screws into the rails along the length.

A twin skips the middle cleat. Full and queen need it: set its top edge flush with the side cleats' top edges, pocket-screwed into the end panels. Every pound on the mattress lands on these cleats; be generous with screws.

Lay the 1x3 slats across the cleats and screw each end down — one screw per joint is enough, and screws beat nails here for one specific reason: a nail that works its way proud under a mattress becomes a spike you find with bedding, or worse. Screws stay put and back out cleanly if a slat ever needs replacing.

Before anyone sleeps up top: add a guardrail on the open sides of the upper bunk and fix the ladder in place. That's not this cut list, but it is this project.