Custom wall cabinets, and why the "standard" sizes are anything but

Summary: Custom wall cabinets are worth considering when standard cabinet widths, depths, and heights leave visible filler strips or wasted storage. The useful gains are exact wall fit, better depth choices, and materials where they actually matter.

The wall above our kitchen counter is 2.14 m long. Off the showroom floor, the closest you'll get from a major cabinet supplier is two 60 cm units and a 90 cm one, which adds up to 2.1 m. That leaves a 4 cm strip of bare plaster where the cabinets stop. You can fill it with a strip of trim. Most people do. It always looks like a strip of trim filling a gap, because that's what it is.

I lived with that gap for two years. Then I got tired of it.

This post is about what I learned working out custom wall cabinets, the second time around, for the same wall. The first version was off the catalogue. The second was made to measure. The numbers below are from the second pass.

Why catalogue widths don't fit your wall

Wall cabinets in big-box catalogues come in a small set of widths. In Europe, it's almost always some combination of 30, 40, 50, 60, 80, and 90 cm. In the US, you mostly get 12, 18, 24, 30, and 36 inch (so roughly 30.5, 45.7, 61, 76.2, and 91.4 cm). A few brands stretch to 1 m but it's rare.

The walls these have to fit on don't follow the same rhythm. A standard galley kitchen in a 1970s Dutch flat is often around 2.4 m wide, which works. A renovated Victorian terrace in London might give you 1.89 m between a chimney breast and a window reveal. A converted loft in Berlin recently gave a friend exactly 2.17 m of usable run, with a sloped ceiling cutting in at the right edge.

The catalogue can solve the 2.4 m one. It cannot solve the other two without leaving you with leftover gaps, awkward filler panels, or cabinets that bump into a window casing.

The depth question is the one nobody asks early enough

Standard wall cabinets are 30 to 35 cm deep. That number got fixed somewhere in the 1960s and hasn't really moved.

It's the wrong number for a lot of kitchens.

If you store a stack of dinner plates (about 27 cm across), you fit. If you store a 32 cm pasta pot lid, you don't. If you've got a cereal box (Dutch breakfast cereals run 25 to 30 cm tall but only 6 cm deep) you've got 24 cm of unused space behind it. Multiply that across six cabinets and you've lost half a metre of total storage volume to a depth nobody picked on purpose.

Custom wall cabinets let you set this. 20 cm deep for a glassware cabinet against a tight kitchen aisle. 38 cm deep for the corner unit that holds the slow cooker. 25 cm for the pantry-style one over the fridge. The cabinet doors line up if you plan it; if you don't plan it, they look stepped and you'll regret it.

What changes when you go made to measure

The honest answer is: width, depth, height, hinge side, internal dividers, and the substrate. That's most of the cabinet.

Height first. Catalogue wall cabinets come in 60, 72, and 90 cm tall. Custom can go to whatever your soffit allows. If your ceiling is 2.58 m and your worktop is at 92 cm with a 60 cm tile splash, you've got 1.06 m of usable wall above the splash. A 90 cm catalogue cabinet leaves 16 cm of dust trap above it. A made to measure 1.04 m one closes the gap and gives you a usable top shelf for the things you reach for twice a year.

Materials matter less than people think for the carcass and a lot more for the doors. The carcass is mostly hidden, so 18 mm melamine-faced chipboard is fine for most of it. The doors and the visible side panels are what you see and touch every day. 18 mm birch ply with a hardwax oil finish ages slowly and quietly. MDF with a sprayed lacquer finish looks crisp the day it arrives and starts chipping at the edges within a year if you've got kids or a heavy hand on the dishwasher door.

A reasonable middle path: birch ply doors and end panels, melamine carcasses, soft-close hinges as standard. That's roughly where the made to measure premium starts paying off, because catalogues either give you all-melamine at the cheap end or all-solid-wood at the expensive end. Mixing is the bit they can't do.

What it actually costs

I'll give a real number. The 2.14 m run I started this post with, custom wall cabinets, three doors, soft-close, birch ply doors with melamine carcasses, internal dividers for spice jars and pan lids, came in at about 1,180 euros for the cabinets themselves plus 140 for the handles. Delivery was another 60.

The catalogue version I'd had before, two 60 cm units and a 90 cm unit plus the trim strip, was 740 euros all in. So the made to measure version was about 580 euros more. For a kitchen wall I use every day, that worked out to roughly the cost of a long weekend away, spread over however many years I keep the kitchen.

That's the calculation. Sometimes it lands on the catalogue side. Sometimes it doesn't.

Lead time, and the bit nobody warns you about

Catalogue wall cabinets are usually in stock or available in a week or two. Made to measure tends to land somewhere between three and six weeks, depending on whether the supplier is cutting in-house or routing the cuts to a partner yard.

The bit nobody warns you about: the wall itself. Measuring twice and getting the same answer twice doesn't mean the wall is straight. Old plaster bows. New stud walls bend a few millimetres along their length. Custom cabinets that are cut to a perfect 2.14 m will not fit a 2.14 m wall that's actually 2.135 m in the middle and 2.143 m at the top. Most made to measure suppliers expect this and design in a 5 to 10 mm tolerance with a scribe strip on one end. Ask about that before you order. If the supplier doesn't mention it, assume they haven't planned for it.

If you're sizing up cabinets for an awkward run between a window and a chimney breast, or trying to close that 4 cm gap a catalogue won't, that's the kind of thing knuslabs.com was built to solve.

If you're planning the same kind of project, start with custom media cabinet concepts or compare it with built-in bookcase concepts. For adjacent planning detail, read Custom wardrobe cabinets, when one big wardrobe doesn't fit and Custom made cupboards, and the small mistakes that make them stop fitting.