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The whole idea here is a kit of parts rather than one fixed design: rooms, decks, and roof modules are all built to the same footprint, so any combination stacks cleanly and the "finished" dollhouse is really just however many modules you decide to build. That makes this a genuinely good project to build incrementally — start with two or three rooms and a roof, and add more later without redesigning anything.
The roof module is the one piece that needs real care: its moulding frame has mitered 45° corners, and it has to be checked square against an actual room module before the glue sets, not just squared on its own. A roof that's square in isolation but doesn't match the room footprint will rock or gap when stacked. Paint the 1x pieces before assembly wherever the plan calls for it — reaching a brush into an assembled dollhouse room is far harder than painting flat stock.
| Item | Qty |
|---|---|
| Plywood, 1/2", ripped into 7-3/4" stripsRoom walls, deck, and roof floor — quantity depends on how many modules you build. | 12 sq ft |
| Moulding, 3/4" x 3/4"Deck railing and roof frame. | 15 ft |
| Pine, 1x4, various lengthsRoom frames — any 1x material works. | 2 each |
| Pine, 1x2, various lengthsRoofing trim. | 1 each |
| Wood dowels, 1/4"Deck railing spindles. | 12 each |
| Wood glue | 3 oz |
| Brad nails, 1-1/4" | 1 box |
| PaintApply to 1x pieces before assembly wherever possible. | 1 each |
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 |
|---|---|---|
| Room wallsPlywood | 2 | 1/2" × 7 3/4" × 15 1/2" |
| Room frame piecesPine, 1x4 | 4 | 3/4" × 3 1/2" × 7 3/4" |
| Deck floorPlywood | 1 | 1/2" × 7 3/4" × 15 1/2" |
| Deck railing, long sidesMoulding | 2 | 3/4" × 3/4" × 14" |
| Deck railing, short sidesMoulding | 4 | 3/4" × 3/4" × 7 3/4" |
| Deck railing, corner postsMoulding | 4 | 3/4" × 3/4" × 2" |
| Deck railing spindlesWood dowel | 12 | 1/4" × 1/4" × 2 1/2" |
| Roof frame, long sidesMoulding | 4 | 3/4" × 3/4" × 14" |
| Roof frame, gable longMouldingOne end cut at 45°, long-point measurement. | 2 | 3/4" × 3/4" × 6 3/4" |
| Roof frame, gable shortMouldingOne end cut at 45°, long-point measurement. | 2 | 3/4" × 3/4" × 6" |
| Roof peak trimPine, 1x2Ends cut to a point at 45°. | 2 | 3/4" × 1 1/2" × 11" |
Buy 6 boards at 8 ft.
1 board
1 board
2 boards
Rooms are the simplest module — glue and nail or screw the plywood walls to the 1x frame pieces. Paint the 1x pieces before assembly wherever you can; it's much easier to get clean coverage on flat stock than inside an assembled room.
Drill the dowel holes for the railing spindles 1/4" deep and glue them in place. Glue and nail the railing frame together, then attach it to the deck's plywood floor with 1-1/4" brad nails.
Nail and glue the roof frame pieces together, mitering the gable corners at 45°. Before the glue sets, set the roof assembly next to an actual room module to confirm it's square against the room's real footprint — a roof that's square only in isolation can still rock or gap once stacked.
Stack your room, deck, and roof modules in any combination — the whole system is designed to mix and match. Add furnishings and details as separate small builds once the core modules are done.
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1 board
1 board
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 →