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This is a real structure built around a twin mattress rather than a themed headboard bolted onto a plain frame — angled 2x4 legs form a peaked roofline, sided in 1x8 boards, and roofed with overlapping 1x8 roofing boards laid working out from the center. Lay out the front and back frames first, being precise about the roof angles at the top of the legs and confirming both the top and bottom of the legs measure exactly 75" wide — this width has to match at both top and bottom, or the whole structure develops a lean once the roof trim and siding go on.
Once both end frames stand, the roof-angled trim ties them together, and the remaining roof trim attaches to the fronts of the legs — keep the front roof trim low enough that the roofing boards added later will lay flat along the marked line, a detail easy to get wrong if you eyeball the trim height instead of checking it against the plan's reference line.
Siding goes on starting from the bottom row and working up, checking square and level as you go, since an early siding board that's slightly off will compound by the time you reach the roofline. The roof itself is shingled from the center out — work from the center roofing board outward in both directions, screwing carefully into the front 1x6 roofing trim underneath, since a screw that misses this trim board won't hold. Mattress slats go in last, spaced roughly 5" apart, with the plan explicitly noting to add more slats than shown if your particular mattress needs firmer support.
| Item | Qty |
|---|---|
| 2x4, 8 ft or stud length | 12 each |
| 1x6, 8 ft | 3 each |
| 1x8, 8 ft | 12 each |
| Self-tapping screws, 2-3/4" | 60 each |
| Self-tapping screws, 1-3/4" | 150 each |
| Primer and paint, or stain and poly | 1 set |
Overall cost: $$$$$. Lumber prices vary by region, species, and season, so we give a band rather than a figure we would only be pretending to know.
| Part | Qty | T × W × L |
|---|---|---|
| Back legs2x4, 8 ft or stud lengthLong point measurement, one end cut at 10° bevel. | 2 | 1 1/2" × 3 1/2" × 75" |
| Front legs2x4, 8 ft or stud lengthLong point measurement, one end cut at 10° bevel. | 3 | 1 1/2" × 3 1/2" × 67 7/8" |
| Mattress cleats2x4, 8 ft or stud length | 2 | 1 1/2" × 3 1/2" × 75" |
| Side roof trim1x6, 8 ftLong point to short point, both ends cut 10° off square, ends parallel. | 2 | 3/4" × 5 1/2" × 42 5/8" |
| Front/back roof trim1x6, 8 ft | 2 | 3/4" × 5 1/2" × 76 1/2" |
| Side siding1x8, 8 ft | 8 | 3/4" × 7 1/4" × 42" |
| Front siding1x8, 8 ft | 4 | 3/4" × 7 1/4" × 47 1/2" |
| Small front siding1x8, 8 ftCut last from scraps. | 4 | 3/4" × 7 1/4" × 4 1/4" |
| Front mattress trim1x8, 8 ft | 1 | 3/4" × 7 1/4" × 24 3/4" |
| Ladder step2x4, 8 ft or stud length | 1 | 1 1/2" × 3 1/2" × 31 3/4" |
| Roof boards1x8, 8 ft | 11 | 3/4" × 7 1/4" × 45 3/4" |
| Mattress slats2x4, 8 ft or stud length | 9 | 1 1/2" × 3 1/2" × 39" |
Buy 27 boards at 8 ft.
12 boards
Lay out the front and back frames carefully and attach the mattress cleats, keeping the roof angles right at the tops of the legs. Confirm the tops of the legs measure 75" wide, matching the bottom.
Attach the front frame to the back frame with the angled roof trim.
Attach the remaining roof trim to the fronts of the legs and the back. Keep the front trim low enough that the roofing boards will lay flat along the reference line.
Attach the bottom row of side siding first, checking square and level, then work upward to complete the siding on all sides.
Add the front mattress trim and the ladder step, centering the step vertically on the height of the bed.
Attach the center roof board first, screwing carefully into the front 1x6 roofing trim. Working from the center outward, attach the remaining roof boards.
Lay the 2x4 slats inside the bed on the mattress cleats, spaced about 5" apart, and attach with screws. Add more slats if your mattress requires firmer support.
Sand all surfaces and apply primer and paint, or stain and poly.
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12 boards
3 boards
Assumes 8 ft stock, a 1/8" saw kerf, and buying each part at its own width. Change the board size or kerf on the full board plan →