How Many Cabinets Can You Make From One Sheet of Plywood?
See reproducible one-sheet results for 18, 24, 30, and 36-inch base cabinet carcasses with explicit parts, kerf, trim, and shelf-count assumptions.
For the base-cabinet carcasses modeled here, one 48 × 96 sheet holds one complete 18, 24, or 30-inch-wide box with two sides, a bottom, two shelves, and two stretchers. The same two-shelf 36-inch box needs two sheets in the SawNest solver. That answer is deliberately narrow: backs, doors, drawers, toe-kick parts, face frames, and finished ends are not included.
The short answer by cabinet width
All four runs use a 48 × 96-inch sheet, 1/4-inch trim on every edge, a 1/8-inch kerf, and measured 3/4-inch side thickness. Side grain is locked with cabinet height; the other parts may rotate. The result is a planning comparison, not a universal cabinet cut list.
| Outside width | Listed parts | Sheets | Finished-part yield |
|---|---|---|---|
| 18 in | 2 sides, bottom, 2 shelves, 2 stretchers | 1 | 61.3% |
| 24 in | 2 sides, bottom, 2 shelves, 2 stretchers | 1 | 71.0% |
| 30 in | 2 sides, bottom, 2 shelves, 2 stretchers | 1 | 80.6% |
| 36 in | 2 sides, bottom, 2 shelves, 2 stretchers | 2 | 45.1% across 2 sheets |
What is included in each box
Each scenario uses two 23 1/4 × 34 1/2-inch sides. The bottom is 22 1/2 inches deep and spans the outside cabinet width minus two 3/4-inch sides. Two adjustable shelves are 21 7/8 inches deep and 1/8 inch narrower than the inside opening. Two 4-inch stretchers use the same across-cabinet span as the bottom.
The count excludes material that often differs by thickness or construction: the back, doors and drawer fronts, drawer boxes, toe-kick skin, finished end panels, face frame, fillers, scribes, and installation cleats. Add each real component before treating the result as a purchase quantity.
Why a 36-inch answer changes with shelf count
The two-shelf 36-inch scenario requires two sheets in this repeatable run. SawNest's separate 36-inch project companion intentionally uses one adjustable shelf and fits its six listed parts on one sheet at 74.0% part yield. Both results can be correct because they answer different bills of parts.
Shelf count, dividers, finished ends, and a full-height back are not small estimating details. They add large rectangles and can cross a sheet boundary, so state them before asking how many cabinets fit per sheet.
bottom span = cabinet width − 2 × measured side thicknessshelf span = bottom span − 1/8 in clearance36 in box: bottom = 34.5 in; shelf = 34.375 inThese counts are SawNest solver results under the stated stock, trim, kerf, and rotation settings—not area-only estimates.
Do not multiply one-box yield across a kitchen
Two one-sheet cabinet examples do not necessarily require two sheets when optimized together, and a 60% part-area result does not prove that the remaining 40% can hold the next box. Shape and grain constraints determine whether the offcut is usable.
Combine every same-thickness part from the run, keep stable cabinet and part IDs, then optimize the entire group. Put thinner backs, solid-wood frames, and other stock families in separate material groups and reconcile the final whole-sheet count against the drawing.
Frequently asked questions
Can one sheet of plywood make one base cabinet?
Under the stated SawNest assumptions, one sheet holds one 18, 24, or 30-inch base-cabinet carcass. A two-shelf 36-inch carcass requires two sheets.
Does the one-sheet count include cabinet backs and doors?
No. It includes two sides, a captured bottom, two shelves, and two stretchers in 3/4-inch plywood. Backs, doors, drawers, finished ends, face frames, and other construction-specific parts are excluded.
Why not estimate cabinets from square footage alone?
Finished rectangles must fit with kerf, trim, grain, and usable offcut shapes. Equal total area can produce different sheet counts because the geometry differs.