Calculate 4x8 plywood sheet goods, hardwood face frame board feet, and edge banding for custom cabinetry boxes.
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A cabinet wood calculator estimates the sheet goods (3/4" and 1/4" plywood) and solid hardwood lumber required for custom kitchen and bathroom base and wall cabinets. It calculates side panels, bottoms, stretchers, shelves, and face frame stiles and rails.
\text{Sheets} = \left\lceil \frac{\text{Total Carcass Area (sq ft)} \times 1.15}{32} \right\rceil, \quad \text{Frame BF} = \frac{(2H + 2W) \times 0.1667}{12} \times 1.15A 4ft × 8ft sheet provides 32 sq ft. A 15% cutting allowance accounts for table saw kerf and grain direction layout constraints.
Scenario: Building four standard kitchen base cabinets: 36" wide, 34.5" high, 24" deep.
Surface area per box (sides, bottom, top stretchers, shelf): ~25.5 sq ft.
Total area for 4 boxes: 4 × 25.5 = 102 sq ft (+ 15% waste = 117.3 sq ft).
Divide by sheet area: 117.3 ÷ 32 sq ft/sheet = 3.66 -> 4 sheets of 3/4" plywood.
Hardwood face frames: ~9.2 Board Feet of 1x2 maple/oak.
Cabinet makers universally recommend 3/4-inch (18mm) cabinet-grade plywood (Baltic birch, maple, or oak veneer) for carcass sides, bottoms, and shelves, and 1/4-inch or 1/2-inch for back panels.
Typically, one 4x8 sheet of plywood yields the parts for approximately one standard 36" base cabinet carcass (sides, bottom, and stretchers).
Framed cabinets have a solid hardwood 1.5" face frame attached to the front box edges. Frameless (European style) cabinets have no face frame; door hinges mount directly to the inside plywood carcass with edge-banded front edges.
Dense, stable hardwoods such as Hard Maple, Red Oak, Cherry, Walnut, or Poplar (for painted cabinets) are ideal for face frames.
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