How to Measure Kitchen Cabinets for Shaker RTA Orders

Measuring your kitchen the right way is the most important step before you order Shaker RTA cabinets. A mistake here is the number one reason people end up with cabinets that don't fit. The good news is that measuring isn't hard — you just need to be careful and follow the same steps every time.

This guide walks you through measuring your kitchen step by step, in plain, simple terms.

What You'll Need

• A steel tape measure (at least 25 feet long)
• A notepad or graph paper
• A pencil
• A helper, if possible — it's easier with two people

Always measure in inches, and always measure twice. If two measurements don't match, measure a third time.

Step 1: Draw a Simple Floor Plan

Before you measure anything, draw a rough outline of your kitchen from above. Mark where the walls, windows, doors, and appliances are. You don't need to be an artist — this is just so you know where each measurement goes.

Step 2: Measure Each Wall

Measure the full length of each wall, from corner to corner, at counter height (about 36 inches off the floor). Write each number on your floor plan. Then measure again along the floor and along the ceiling line. If the numbers are different, your wall isn't perfectly straight — use the smallest number when ordering, so your cabinets are sure to fit.

Step 3: Mark Windows, Doors, and Outlets

For every window and door, measure:

• The distance from the corner of the wall to the edge of the window or door
• The width of the window or door itself
• How high it sits off the floor (for windows)

Also mark any outlets, switches, or vents on the wall. You'll need this information so your new cabinets don't cover something they shouldn't.

Step 4: Measure for Appliances

Measure the width, height, and depth of your refrigerator, range, and dishwasher — even if you're keeping the same ones. Cabinets are built around these openings, so getting this wrong can mean an appliance that won't fit later.

Step 5: Check Corners Carefully

Corners are the trickiest part of any kitchen. Measure from each corner out in both directions, and note whether the corner is a true 90-degree angle (most aren't exactly). If you're not sure how to plan a corner cabinet, our cabinet sizes guide and door sizes guide can help you understand standard cabinet widths.

Step 6: Double-Check Ceiling Height

Measure from the floor to the ceiling in a few different spots in the kitchen. Ceilings aren't always perfectly level, and this affects how tall your upper cabinets and any crown molding can be.

Common Measuring Mistakes to Avoid

• Measuring only once. Always measure every wall at least twice.
• Forgetting trim and baseboards. These can take up space your cabinets need.
• Rounding numbers. Write down the exact measurement, even if it's an odd number like 34 3/4 inches.
• Guessing on uneven walls or floors. Old homes often have walls that aren't perfectly straight. Measure in a few spots, not just one.

Not Sure? Get Help

If you're ordering a full kitchen, it's a good idea to have your measurements checked before you place your order. We offer a free kitchen design where our team reviews your measurements and helps you plan the layout, and a free estimate so you know the cost before you buy. See our general measuring guide for more tips, and our RTA vs. custom guide if you're still deciding which option is right for you.

Ready to Order?

Have your measurements ready? Browse our RTA cabinet collection, or get a free kitchen design before you place your order.

Related Guides

• RTA Shaker Cabinets: Assembly & Quality Guide
• RTA Cabinets vs. Custom Cabinets: Which is Right for You?

Frequently Asked Questions

What if my walls aren't perfectly straight?

This is normal, especially in older homes. Measure each wall in a few spots (top, middle, and bottom) and use the smallest measurement when ordering, so your cabinets are sure to fit.

Do I need to measure for appliances I'm keeping?

Yes. Even if you're keeping your current fridge, range, or dishwasher, measure them again. It's easy to be off by an inch or two, and that can cause fitting problems later.

Should I measure alone or with help?

Measuring is easier and more accurate with two people, especially for long walls. If you're on your own, a tape measure with a locking clip can help keep it steady.