Cabinet Door Size Calculator
Calculate the correct cabinet door width and height for face-frame and frameless cabinets with full overlay, partial overlay, or inset door styles.
The two cabinet construction systems
Cabinet construction divides broadly into two systems with different philosophies:
Face frame (traditional American)
- Solid wood frame attached to the front of the cabinet box
- Typically 1.5" wide rails (horizontal) and stiles (vertical)
- Hinges attach to the face frame
- Door fully or partially covers the frame
- Standard in American kitchens since the early 1900s
Frameless / European (also called “32mm system”)
- No face frame — the cabinet box edges are visible
- Hinges attach directly to the cabinet sides
- Doors always full overlay (cover the entire cabinet face)
- Standard in IKEA, modern European, and contemporary American kitchens
- More accessible interior storage (no frame to obstruct)
Both systems are valid; modern Americans often prefer frameless for contemporary looks, while face frame is associated with traditional and craftsman styles.
Three overlay styles
Within face-frame construction, three door styles dominate:
Full overlay:
- Door covers the entire face frame opening AND overlaps the frame by 1/2" to 3/4" per side
- Most face frame visible only at edges and middle stiles
- Modern, clean look
- 1/8" gap between adjacent doors (so they don’t collide)
- Most popular style in modern American kitchens
Partial overlay (also called “half overlay” or “1/2 inch overlay”):
- Door overlaps the frame by typically 3/8" to 1/2" per side
- Significant face frame visible between doors
- More traditional appearance
- Common in older homes (pre-1990s)
- Less expensive to manufacture
Inset:
- Door sits flush INSIDE the frame opening
- 1/16" to 1/8" reveal (gap) on all four sides
- Most refined look
- Requires precise construction and tight tolerances
- Common in fine furniture, traditional cabinetry
- Most expensive style
Sizing math by style
For full overlay on face frame:
- Door width = opening width + (2 × overlay amount) - 1/8" (door-to-door gap)
- Door height = opening height + (2 × overlay amount) - 1/8"
- Overlay amount typically 1/2" per side
- Door covers most of the face frame
For full overlay on frameless:
- Door width = opening width + 1" (1/2" overlay each side)
- Door height = opening height + 1"
- 1/8" door-to-door gap on adjoining doors
For partial overlay:
- Door width = opening width + 2 × overlay - 1/16"
- Overlay typically 3/8" or 1/2"
- More frame visible between doors
For inset:
- Door width = opening width - 1/8" (1/16" reveal each side)
- Door height = opening height - 1/8"
- All four sides have small reveals
Standard cabinet dimensions
| Cabinet type | Standard size | Common variations |
|---|---|---|
| Base cabinet height | 34.5" (without countertop) | 30" (ADA), 36" |
| Base cabinet depth | 24" | 27" (deeper), 21" |
| Wall cabinet height | 30" or 36" | 12", 18", 24", 42" |
| Wall cabinet depth | 12" | 14", 24" (refrigerator over) |
| Toe kick height | 4" | 4" standard |
| Counter thickness | 1.5" | Varies by material |
Standard counter height is 36" (countertop + base). Wall cabinets typically start 18" above counter.
Door size considerations
Maximum recommended door dimensions (without center stiles for support):
| Door type | Max recommended size |
|---|---|
| Single solid wood | 24" × 36" |
| Plywood with frame | 30" × 48" |
| MDF with frame | 24" × 36" |
| Wider needs supports | Above 30" |
Larger doors:
- Sag under their own weight (especially solid wood)
- Stress hinges more
- Need heavier-duty hinges
- May require additional supports
For large openings, split into two doors with a center divider rather than one massive door.
Hinge selection
The cabinet construction and door style determine hinge type:
Concealed European hinges (cup hinges):
- 35mm cup drilled into back of door
- Adjustable in 3 axes
- Standard for frameless cabinets
- Works on face frame with proper baseplate
- Most common modern hinge
Concealed face-frame hinges:
- Designed for face-frame cabinets
- Adjustable
- Hidden from outside
- Specifically rated for overlay amount
Butterfly hinges / decorative hinges:
- Visible from outside
- Common in inset doors
- More traditional appearance
- Various decorative styles
Cup hinge overlay options:
- 110° cup hinge: standard, fits 95% of applications
- 165° cup hinge: pull-out drawers behind, accessibility
- Soft-close: integrated damping (essentially mandatory now)
- Push-to-open: handleless doors
Modern hinges are usually adjustable in 3 axes:
- Vertical (up/down)
- Horizontal (in/out)
- Lateral (left/right)
This adjustment allows fine-tuning after installation — about 5mm of movement in each direction.
Material choices for doors
| Material | Pros | Cons | Cost |
|---|---|---|---|
| Solid wood | Beautiful, repairable, durable | Wood movement, expensive | $$$ |
| Plywood with hardwood edge | Stability, mid cost | Less beautiful than solid | $$ |
| MDF (paint grade) | Stable, smooth paint surface | No grain, cheap-looking | $ |
| MDF + plastic veneer | Modern look, durable | Can chip if hit | $ |
| Thermofoil (heat-sealed plastic over MDF) | Affordable, white | Can peel in heat | $ |
| Solid wood frame + plywood panel | Best traditional | Wood movement at panel | $$ |
For paint-grade doors, MDF is often preferred because it doesn’t have grain to telegraph through paint. For stain-grade doors, solid wood or veneered plywood is necessary.
Wood movement considerations
Wood expands and contracts with humidity changes — about 0.25% per 1% RH change. For a 24" wide solid wood door, this can mean 1/8" of movement over the seasonal range.
Implications:
- Solid panel doors: float the panel in grooved frame (not glued)
- Inset doors: leave 1/8" reveal to accommodate movement
- Tight construction: only viable in climate-controlled rooms
- Adjustable hinges: allow recalibration as cabinets age
- Dry climate: less movement, tighter tolerances possible
- Humid climate: more movement, wider reveals needed
In kitchens with significant humidity (above sinks), even tight reveals can bind.
Door style variations
Beyond overlay choice, doors come in many styles:
Shaker: simple 5-piece frame with flat panel; most popular modern style
Raised panel: ornate, traditional; raised center panel
Slab: completely flat; modern, minimalist
Beadboard: vertical grooves; cottage style
Glass front: clear, frosted, or seeded glass insert
Mullion (multi-pane glass): divided glass panes; traditional
Open shelving: no door at all; trendy but exposes contents
Cost implications
Cabinet costs vary by style and material:
| Style/material | Cost (kitchen) |
|---|---|
| Stock cabinets (RTA, IKEA) | $5,000-12,000 |
| Semi-custom | $12,000-25,000 |
| Custom (face frame, paint) | $20,000-40,000 |
| Custom (solid wood, stained) | $30,000-80,000 |
| High-end custom | $80,000+ |
The door style and material dominate cost. Slab thermofoil doors are cheapest; raised-panel solid wood with intricate details is most expensive.
Common cabinet door mistakes
- Wrong overlay calculation: doors don’t fit; major rework needed
- No allowance for wood movement: doors bind in humid weather
- Mismatched hinges: face-frame hinges on frameless box
- Hinges too small: drooping doors
- Inadequate panel float: panels split from movement restriction
- Wrong door order: ordering before measuring cabinets
- Cheap doors on quality cabinets: undermines the investment
- No consideration of hardware: handles interfere with door operation
- Tight reveals in humid kitchen: binding during summer
- Custom doors without standard sizes: replacement becomes impossible
Bottom line
Cabinet doors come in three styles: full overlay, partial overlay, and inset. Face-frame cabinets have a 1.5" frame at the front; frameless cabinets don’t. Full overlay covers most of the frame; partial overlay shows more frame; inset sits flush inside the frame with 1/16"-1/8" reveal. Door width = opening + (2 × overlay) - 1/8" for full overlay; door = opening - 1/8" for inset. Wood movement requires 1/8" gaps for inset doors. Modern concealed (cup) hinges are 35mm and adjustable in 3 axes. Solid wood looks best but moves with humidity; MDF and engineered materials are stable but less beautiful. For most homes, shaker-style full-overlay doors strike the best balance of cost, appearance, and practicality.