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This is the upgrade that turns the Hailey storage bench into a full daybed: a tall paneled headboard along the back and two arm panels at the ends, so a twin mattress reads as a sofa by day and a bed by night, with storage drawers below. It builds directly on the Hailey Storage Bed bench, so build that base first — this plan adds the back and arms to it.
The defining detail is that the 2x4 legs are ripped down to 3" wide. Taking 1/4" off each edge squares up the rounded factory corners and gives the legs crisp, furniture-grade faces — but it means you need a table saw, and every dimension in the cut list assumes 3"-wide legs. If you skip the ripping, you'll have to re-figure the panel widths.
The headboard and arm panels are particle board framed in 1x2/1x4 and joined to the legs with pocket holes drilled every 8–12" along the back, set for 3/4" stock. Panels are big and floppy until they're fastened, so get a second pair of hands to hold them while you drive the screws. Assembly order matters: build the bench, the arms (which are essentially taller footboards), and the headboard separately, then join them — arms to the front bench first, per the source — before dropping in the slats.
| Item | Qty |
|---|---|
| 3/4" particle board, 4x8 sheetHeadboard and arm panels. | 2 each |
| 1x4 board, 6 ft | 1 each |
| 1x2 board, 8 ft | 3 each |
| 2x4 board, 8 ftLegs (ripped to 3") and cleat. | 3 each |
| 1x3 board, 8 ftPlus more 1x3 for the ~14 slats. | 2 each |
| 2x2 board, 8 ftSlat cleat. | 1 each |
| Pocket-hole and wood screws, 1-1/4" and 2-1/2" | 80 each |
| Wood glue | 8 oz |
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 |
|---|---|---|
| Headboard panel3/4" particle board | 1 | 3/4" × 32 1/2" × 72" |
| Arm panels3/4" particle board | 2 | 3/4" × 27" × 33" |
| Headboard trim, bottom1x4 | 1 | 3/4" × 3 1/2" × 72" |
| Headboard trim, top1x2 | 1 | 3/4" × 1 1/2" × 72" |
| Headboard legs2x4Ripped from 2x4 to 3" wide. | 2 | 1 1/2" × 3" × 48 1/4" |
| Top of headboard1x3 | 1 | 3/4" × 2 1/2" × 80" |
| Slat cleat2x2 | 1 | 1 1/2" × 1 1/2" × 75" |
| Arm legs2x4Ripped to 3" wide. | 4 | 1 1/2" × 3" × 30" |
| Arm trim1x2 | 4 | 3/4" × 1 1/2" × 33" |
| Top of arms1x3 | 2 | 3/4" × 2 1/2" × 39" |
| Slats1x3Approximate count; cut to fit and space evenly. | 14 | 3/4" × 2 1/2" × 39" |
Buy 19 boards at 8 ft.
3 boards
1 board
1 board
1 board
1 board
9 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 →
This daybed sits on the Hailey Storage Bed bench, so build that base first following its own plan — the drawers and box come from there. Everything below adds the back and arms to it.
Rip the 2x4 legs down to 3" wide, taking 1/4" off each edge to square up the rounded factory corners. This needs a table saw and every panel dimension assumes it — don't skip it or the widths won't work out.
Assemble the headboard: frame the particle-board panel and join it to the ripped legs with 3/4" pocket holes drilled every 8–12" along the back, glue, and 1-1/4" screws. The panel is big and floppy — get a second person to hold it up while you drive the screws.
Add the bottom 1x4 trim and top 1x2 trim to the headboard panel, then cap it with the 1x3 top. Keep it square.
Build the arms exactly like the headboard but to the arm dimensions — they're essentially taller footboards. Frame the panels, join to ripped legs, add the 1x2 arm trim and 1x3 tops. Remember the dimensions assume 3"-wide legs.
With the bench, arms, and headboard built, assemble without the slats: attach the arms to the front bench first, then the headboard. Fasten the 2x2 slat cleat, level everything, then lay the ~14 slats and space them evenly. Sand and finish.
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