Why Accurate Measurements Matter
Ordering cabinets without precise measurements is one of the most costly mistakes a homeowner can make. Cabinets are built to standard sizes, but kitchens rarely are. A few inches off can mean gaps, overhangs, or cabinets that simply won't fit — and returns are expensive and time-consuming.
The good news: measuring your kitchen for cabinets is straightforward if you follow a systematic process. This guide walks you through every step.
Tools You'll Need
- 25-foot tape measure
- Graph paper or a free kitchen planning app
- Pencil and notepad
- Level (optional but helpful)
- A helper for long walls
Step 1: Sketch Your Kitchen Layout
Before you measure anything, draw a rough bird's-eye view of your kitchen on graph paper. Mark the location of:
- Doors and which way they swing
- Windows (note the height from the floor)
- Appliances (refrigerator, range, dishwasher)
- Plumbing (sink location)
- Electrical outlets and switches
- Soffits or bulkheads above the cabinets
This sketch becomes your measurement map. Label each wall A, B, C, D going clockwise.
Step 2: Measure Each Wall
Measure each wall from corner to corner at counter height (approximately 36 inches from the floor). Record the measurement in inches — not feet and inches — to avoid conversion errors.
Pro tip: Measure each wall three times: at the floor, at counter height, and at ceiling height. Walls are rarely perfectly plumb, and the smallest measurement is the one you should use for planning.
Step 3: Measure Ceiling Height
Standard ceiling height is 8 feet (96 inches). Measure from the floor to the ceiling in multiple spots — especially in older homes where ceilings may not be level. Note the lowest point.
This measurement determines whether you can use standard 30-inch or 36-inch wall cabinets, and whether you'll have a gap between the top of the cabinets and the ceiling (which you can fill with crown molding).
Step 4: Locate and Measure Obstacles
Measure the exact position of every obstacle on each wall:
- Windows: Distance from the corner to the window edge, window width, and height from the floor to the window sill and to the top of the window
- Doors: Distance from the corner to the door frame, door width, and swing direction
- Outlets and switches: Distance from the corner and height from the floor
- Plumbing: Center of the drain and supply lines from the nearest corner
Step 5: Measure for Base Cabinets
Base cabinets are 34.5 inches tall (countertop brings them to 36 inches) and typically 24 inches deep. Measure the total linear footage of your base cabinet run, subtracting for appliances:
- Standard refrigerator space: 36 inches wide
- Standard range/stove space: 30 or 36 inches wide
- Dishwasher space: 24 inches wide
The remaining linear footage is your base cabinet space.
Step 6: Measure for Wall Cabinets
Wall cabinets are typically installed 18 inches above the countertop (54 inches from the floor). They come in heights of 12, 15, 18, 24, 30, 36, and 42 inches.
Measure the space between 54 inches from the floor and your ceiling (or soffit). This tells you which cabinet height to order. Most kitchens use 30-inch wall cabinets with an 8-foot ceiling, leaving a small gap for crown molding.
Note any windows that interrupt your wall cabinet run — you'll need to plan around them with shorter cabinets or open shelving.
Step 7: Account for the Refrigerator
Measure your refrigerator's actual dimensions (not just the cabinet opening). You need at least 1 inch of clearance on each side and 1 inch at the top for ventilation. If you're buying a new refrigerator, plan for a 36-inch-wide opening as a standard.
Standard Cabinet Sizes Reference
Keep these standard dimensions in mind as you plan:
- Base cabinets: 34.5" tall × 24" deep; widths from 9" to 48" in 3" increments
- Wall cabinets: 12" deep; heights of 12"–42"; widths from 9" to 48"
- Tall/pantry cabinets: 84", 90", or 96" tall × 24" deep
- Filler strips: Used to fill gaps between cabinets and walls
Common Measurement Mistakes to Avoid
- Measuring only once: Always measure twice (or three times) and use the smallest number
- Forgetting door swings: A cabinet door that swings into a walkway or appliance is a daily frustration
- Ignoring the soffit: Soffits above cabinets can limit your cabinet height options
- Not accounting for appliance handles: Refrigerator and dishwasher handles stick out further than the appliance body
- Skipping the level check: An out-of-level floor means your base cabinets will need shimming
Ready to Order?
Once you have your measurements, you're ready to start planning your cabinet layout. Browse our 10x10 RTA Kitchen Layout collection to see complete kitchen sets, or explore individual cabinet finishes to find the right look for your space.
Have questions about your specific layout? Our team is here to help — reach out before you order and we'll review your measurements with you.