How to Measure Kitchen Doors Correctly

The good news is that measuring kitchen doors is far more straightforward than it sounds. You don't need any special skill, only a little care, the right approach and a few minutes per door. This guide walks you through exactly how to measure kitchen doors correctly, so you can order with complete confidence.

It's worth understanding why this step rewards a little patience. A door is made to the exact size you specify, so the measurement you give becomes the door you receive. There's no trimming a ready-made door down on site the way you might with timber, which is precisely why a few careful minutes now save any disappointment later. Think of it as the foundation the whole project rests on, and an easy one to get right.

Before you start

A few minutes of preparation makes the whole job easier and more accurate.

Gather a steel tape measure rather than a fabric one, which can stretch and mislead, along with a pencil and paper, or a notes app, to record each measurement as you go. Measure in millimetres throughout. Kitchen doors are made to the millimetre, and working in mm avoids the rounding errors that creep in with centimetres or inches. It's a small habit that prevents a great many mistakes.

Then, work methodically. Give each cabinet a number and note its measurements against that number, so nothing gets muddled later. A simple labelled list is your best friend here.

Measuring your existing doors

If your current doors fit well and you're replacing like for like, the easiest and most reliable method is to measure the doors you already have.

Measure the height of the door from top to bottom, doing so down the centre rather than the very edge, where the odd knock or wear can throw the figure off. Then measure the width across the middle, from one side to the other. Finally, note the thickness of the door by measuring its edge, as this can vary and occasionally matters for hinges and handles. Write all three figures against that cabinet's number, and move on to the next.

Repeat for every door and drawer front. It feels repetitive, but each one deserves its own measurement, because doors that look identical sometimes aren't, especially in older or handmade kitchens.

A quick worked example

Imagine a base cabinet door that you've labelled "B3". You measure its height down the centre and get 715mm, then check it again and get the same. You measure the width across the middle at 397mm, confirmed on a second pass. The edge measures 18mm thick. Your note reads, in full: "B3 - H715 x W397 x T18mm". Do that for every door and drawer front, and you end up with a clear, ordered list that any supplier can work from without ambiguity. That list, more than anything else, is what makes ordering smooth.

Measuring from the cabinet opening

If your existing doors are damaged, missing, or never fitted well in the first place, you'll want to measure the cabinet opening instead and work out the correct door size from there.

Measure the height and width of the opening itself, then add an allowance so the door overlaps the frame and sits correctly, rather than dropping into the gap. The exact overlap depends on your cabinets and hinges, so this is a moment to take care, and to ask your supplier what allowance they recommend for their doors. When in doubt, measuring the opening and asking for guidance is far safer than guessing.

Don't forget the drawers and special units

Drawer fronts are measured in the same careful way, height, width and thickness, and noted against their unit. It's also worth giving extra attention to anything non-standard: corner units, integrated appliance doors, and end panels can have their own quirks. If a unit looks unusual, measure it twice and note exactly what it is, so your supplier can advise.

Thinking ahead to hinges and handles

While you have the tape measure out, it's worth noting a couple of details that make the ordering stage smoother. Take a look at how your current doors hinge: the position of the existing hinge holes, and whether the doors are left or right hung, can matter when your new doors arrive. If you're keeping your existing hinges, check they'll suit the new doors; if you're starting fresh, your supplier can advise on what to choose.

Handles are worth a thought too. If you're reusing existing handles, measure the distance between the fixing holes so any pre-drilled doors line up, or order undrilled doors and position the handles yourself for complete freedom. None of this is complicated, but noting it now saves a small headache later.

Double-check everything

Once you've measured every door and front, go back through and check each figure a second time. This single habit catches the vast majority of errors before they become expensive ones. It helps to measure each door twice as you go and only write the figure down when both readings agree.

Confirm you've worked in millimetres throughout, that every cabinet is numbered, and that you've recorded height, width and thickness for each one. A complete, double-checked list is exactly what you need to order accurately.

A note on standard sizes

Many kitchens are built around a set of common door dimensions, which can be a helpful reference point as you measure. That said, the only measurements that truly matter are the ones from your own kitchen, so always trust your tape over any chart. If you'd like to understand the typical dimensions and how they work, our guide to standard kitchen door sizes explains them clearly.

Avoiding the common pitfalls

Most measuring mistakes come down to a handful of recurring slips: working in the wrong units, measuring only one door and assuming the rest match, forgetting the overlap when measuring an opening, or rounding figures up or down. Being aware of these is half the battle. For the full list and how to sidestep each one, our guide to the mistakes to avoid when ordering kitchen doors is well worth a read before you place your order.

From measurements to order

With an accurate list in hand, the buying stage becomes far less daunting. A few things are worth having clear before you place an order, so the doors that arrive are exactly the ones you pictured.

First, know your quantities and sizes precisely, which your numbered list already gives you. Second, decide on your material and finish, as these affect both the look and the price, and our guides on finishes and materials can help you weigh them up. Third, confirm the practical details with your supplier: the door overlap they work to, whether doors come drilled or undrilled for hinges and handles, and their lead times, so you can plan your project around the delivery.

It's also wise to order a sample or check a colour swatch in your own kitchen light before committing to a full order. Finishes can look quite different on a screen compared with real life, and a quick check removes any doubt. A little patience here means no surprises when the full order arrives, and a result you'll be delighted with.

Buying doors needn't feel like a leap of faith. With careful measurements and these few questions answered, you can order in full confidence that everything will fit and look exactly as intended.

Ready to order with confidence

Once your measurements are complete and double-checked, the daunting part is behind you. From here it's all the enjoyable decisions, style, finish, material and colour, and our guides to kitchen door styles and kitchen door finishes are there to help with each.

When you're ready, the final step is finding a supplier whose doors and sizing suit your kitchen, at a price that feels right for you. That's where we can help.

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