Room box building
A room box is a single room in a box with the front open, like a little stage. Working in this order means nothing gets in the way of the next step.
Sellers usually list a box's outside size. The inside is smaller by the thickness of the walls, often ¼ to ½ in. Measure inside width, depth and height before you cut any paper, and write them down.
Decide where lights go before anything is covered. Drill holes and run wires or LED strips now.
Hide battery packs behind the back wall or under a raised floor.
Paint or paper the ceiling while nothing is in the way.
Small gaps at the edges are fine. Crown molding will cover them.
Two ways work. Run one continuous strip from the left wall, across the back, to the right wall, pressing it into the corners. Or paper the back wall first, letting about ¼ in wrap onto each side wall, then lay the side pieces over it so their edges sit right in the corners.
The strip leaves no seams in the corners. Back-first is easier to handle, since every piece is short, and the corner seams barely show. Either way, leave a little extra at the top and bottom and trim it after.
Printed flooring, scrapbook paper or coffee stirrers for wood planks all work.
Run planks front to back. It makes a shallow box look deeper.
Baseboards, chair rail and crown molding hide the gaps where walls, floor and ceiling meet.
Trim is what makes a box start to look like a real room.
Place the largest pieces first, then fill in with small things.
Glue down only once you're happy with the layout.
Tool
Enter your box's inside measurements. The planner works out how many sheets to print, which way to turn the paper, and where every seam lands.
| Detail | Real | 1:6 | 1:12 |
|---|---|---|---|
| Baseboard height | 3–8 in | ½–1⅓ in | ¼–11/16 in |
| Chair rail, from floor | 32–36 in | 5⅓–6 in | 2⅔–3 in |
| Light switch, from floor | 48 in | 8 in | 4 in |
| Door height | 80 in | 13⅓ in | 6⅔ in |
| Wood floor plank width | 3–5 in | ½–13/16 in | ¼–7/16 in |