BeeBoard

Guides

Standard Kitchen Cabinet Sizes

Cabinet sizing is more standardized than most other parts of a kitchen. Here's the size chart most cabinet lines are built around.

The full size chart

Why widths come in 3-inch steps

Standard widths let a run of cabinets be mixed and matched to fill a wall without custom fabrication. Almost no wall divides evenly into stock widths, so the standard fix is a filler strip — a thin piece of matching material, usually 1" to 3" wide, that takes up the leftover space instead of forcing a nonstandard cabinet width into the plan.

Planning a layout around standard widths

Start from your total wall length and work backward into a combination of stock widths plus a filler. For example, a 91" wall could break down as a 36" cabinet, a 30" cabinet, a 24" cabinet, and a 1" filler — three standard widths and one small gap, instead of a custom 91" run.

Corner cabinets don't follow this chart

Blind-corner and lazy-susan cabinets are sized by a different logic — specified by the width of each adjoining run plus the corner unit's own depth, not a straightforward width. Check a corner-specific spec sheet rather than extrapolating from base cabinet widths.

Base cabinet depth is the field most likely to be nonstandard — some lines sell 23" or 25" instead of the usual 24". It helps to filter BeeBoard by exact width, height, and depth, and if you haven't measured your space yet, the depth-measuring guide covers exactly where to check.

Frequently asked questions

What's the standard height of a kitchen island?
Around 36" total to match base cabinet + countertop height, or around 42" for bar-height seating.

Do wall cabinets need to match ceiling height exactly?
No — most kitchens leave a gap above wall cabinets, open or filled with crown molding or a soffit.

What if my wall doesn't fit standard widths?
Use a filler strip, or size one cabinet in the run to a custom width if the gap is too large for a standard filler.