Cabinet Door Size Calculator

Cabinet door sizing is one of the most consequential decisions in any cabinet build or kitchen remodel. Get the door size wrong by even 1/16" and you end up with hinges that bind, reveals that look uneven, or doors that smash into each other every time you open them. Our Cabinet Door Size Calculator removes the math from the equation so you can move straight from cabinet opening to ready-to-cut door dimensions, whether you build full-overlay frameless cabinets, partial-overlay face-frame cabinets, or traditional inset doors that sit flush inside the opening.

The calculator implements the same formulas that professional cabinetmakers use every day — Door Width = Opening Width + (2 × Overlay) for overlay doors, and Door Width = Opening Width − (2 × Reveal) for inset doors — and then layers on top everything else you actually need: per-door splits when an opening uses a pair of doors, the standard 1/8" gap between paired frameless doors, the standard 1/16" gap on framed cabinets, automatic hinge count based on door height, a recommended hinge type for your construction, a full rail-and-stile cut list when you are building a 5-piece door, a printable cut list, and a scaled SVG diagram so you can sanity-check the geometry visually before you ever pick up a saw. Whether you are refacing a kitchen, building a single replacement door, or quoting a hundred-door commercial job, this tool gives you the dimensions in seconds.

The Three Door Types and How They Differ

Formula Reference Table

Hinge Count by Door Height

Hinge count is driven by door height, weight, and material. The calculator uses these widely-accepted thresholds, derived from concealed-hinge manufacturer guidance:

• • Up to 36": 2 hinges — covers most wall and base cabinet doors.
• • 36" – 60": 3 hinges — for taller wall cabinets and shorter pantry doors.
• • 60" – 80": 4 hinges — typical for full-height pantry, oven, and utility doors.
• • 80" – 96": 5 hinges — for floor-to-ceiling cabinets and tall closet doors.

For heavier solid-wood or glass-insert doors, bump up one extra hinge. For frameless full-overlay construction, use 35mm cup concealed hinges (Blum, Salice, Grass, Hettich are common brands). For face-frame partial-overlay, choose a Euro hinge with a face-frame baseplate or a semi-concealed wraparound hinge. For inset face-frame doors, traditional barrel or butt hinges look best, though specialty inset Euro hinges exist.

How to Use This Calculator (5 Steps)

1. 1. Measure your cabinet opening to the nearest 1/16". Take three measurements across width and height, use the smallest.
2. 2. Choose construction — frameless (European) or face-frame (American).
3. 3. Pick door type — full overlay, partial overlay, or inset.
4. 4. Set door count — single door or a pair, plus your overlay / reveal value.
5. 5. Calculate and export — review the cut list, scaled diagram, and 5-piece breakdown, then export or share the report.

Common Use Cases

Pro Tips

• • Measure twice, cut once. Measure each opening at three points (top, middle, bottom for width). Use the smallest measurement.
• • Account for hinge clearance. Concealed cup hinges typically need 3-5mm of free door material behind the cup. Don't exceed your face-frame stile width with the overlay.
• • Slab vs 5-piece matters. Slab doors are easier and stable in any material. 5-piece doors look traditional but require a router table and a coping/sticking bit set.
• • Match overlays throughout. A kitchen with inconsistent overlays looks sloppy. Pick one standard and stick with it across all cabinets.
• • Verify the opening is square. Out-of-square openings produce doors with uneven reveals — devastating on inset work. Check diagonals before ordering.
• • Bump up a hinge for heavy doors. Solid wood, glass insert, or doors over 30" wide benefit from an extra hinge regardless of height.

Worked Examples

Cabinet doors are one of the most visible elements of any built space. Sizing them correctly, with consistent reveals and properly counted hinges, is the difference between a kitchen that looks shop-built and one that looks home-made. Use this calculator as the single source of truth for every door in your project — and remember that all calculations are saved in your browser's local history so you can revisit, edit, and re-export at any time.