There are few things more frustrating in home furnishing than ordering a wardrobe, waiting for delivery, and then discovering it doesn't quite fit where you planned. It happens more often than you'd think — and in almost every case, it comes down to one thing: not measuring the space properly before placing the order.

Sliding door wardrobes are brilliantly practical for exactly this kind of problem. Because the doors move across rather than swinging outward, they work in rooms where a hinged wardrobe simply wouldn't be viable. But they do have specific requirements when it comes to fitting, and if you skip any part of the measuring process, you can end up with a wardrobe that's too wide, too tall, or positioned somewhere the doors foul on the skirting board or ceiling cornice.

This guide takes you through the whole process, step by step, so you can order with confidence.

Start With a Steel Tape Measure and a Notepad

Use a steel tape measure, not a soft fabric one. Steel tapes stay rigid across wider distances and give you accurate readings. Measure in centimetres — all furniture dimensions in the UK are listed in metric and trying to convert from inches halfway through is an unnecessary source of confusion.

Write every measurement down and take each one at least twice. If your two readings don't match, measure a third time. Rooms in older UK properties can have walls that aren't perfectly straight or floors that aren't quite level, and a single measurement taken at one point won't always tell the full story.


Step One — Measure the Wall Width

This sounds obvious, but it catches people out all the time. Measure the full width of the wall where you plan to position the wardrobe — from corner to corner, or from corner to door frame, whichever applies. Then measure again at a slightly different height, roughly halfway up the wall, because walls in period properties sometimes bow inward and the reading at floor level can differ from the reading at mid-height.

Work with the smaller of your two readings. That is your usable width. You want a wardrobe that fits comfortably within this dimension, not one cut so close to the edge that the doors have nowhere to slide.

Our sliding wardrobes come in standard widths — typically 100cm, 120cm, 150cm, 180cm, 203cm, and 250cm. Pick the largest size that fits within your usable wall width while leaving a small amount of breathing room at either end.

Step Two — Measure the Ceiling Height

Sliding door wardrobes run on a top rail and a bottom rail. The top rail attaches to the top of the wardrobe frame, so the overall height of the unit plus a small amount of clearance needs to fit between your floor and your ceiling.

Measure from the floor to the ceiling in three places: at the left wall, at the centre of the space, and at the right wall. Work with the smallest figure. Ceilings in many UK homes aren't perfectly level — particularly in Victorian and Edwardian terraces — and if you measure only in the middle, you can find the wardrobe doesn't clear the lower-hanging corner.

Look carefully at your ceiling before you order. Is there coving or a cornice running along the top of the wall? If so, measure from the floor to the bottom of the coving, not to the actual ceiling, because the wardrobe frame will sit against the wall and the coving will determine where the top of the unit can reach.

Standard sliding wardrobes are typically 200cm to 220cm tall. If your ceilings are lower than 210cm, double-check the specific height of any wardrobe you're considering before ordering.

Step Three — Check What's Around the Space

One of the main advantages of a sliding door wardrobe is that it needs no clearance in front of it for the doors to open. But you still need enough room to actually use it comfortably day to day.

Think about what sits opposite. Is there a bed? How much space is between the end of the bed and the wardrobe wall? You want at least 60 to 70 centimetres between the bed and the wardrobe face so you can stand comfortably, open the doors, and reach inside without feeling cramped.

Also check whether any doors open into the wardrobe space. A bedroom door that swings toward the side of a wardrobe will either prevent it from sitting in that corner at all, or will mean the door can't open fully. Worth checking before you commit to a position.

Step Four — Don't Forget the Skirting Boards

This is the one people forget most often. Skirting boards run along the bottom of UK walls and protrude anywhere from 1cm to 3cm outward, sometimes more in older properties. Most wardrobe frames are designed to sit over the skirting board, but on some designs the base frame sits flush to the floor and the skirting board needs to be either removed or notched to allow the wardrobe to sit flat against the wall.

Check the product specification of any wardrobe you're considering to see how the base frame sits. If you're unsure, get in touch with us before ordering. It's a five-minute conversation that can save a significant amount of hassle on delivery day.

Step Five — Measure the Depth

Wardrobe depth is often overlooked until the wardrobe arrives and turns out to be shallower than expected. Standard sliding door wardrobes are typically 60cm deep, which is the minimum depth recommended for hanging clothes on a rail without them pressing against the door. Some two-door designs are slightly shallower at 45cm to 55cm.

Measure the depth of the space you have available from the wall outward. If your bedroom is small and every centimetre matters, this number will tell you which designs are genuinely viable for the space and which ones will make the room feel cluttered.

Step Six — Think About the Inside, Not Just the Outside

Once you've confirmed the external dimensions work, think about what you actually need inside. A wardrobe that looks right from the outside but doesn't suit your storage habits will frustrate you every morning.

Most sliding wardrobes include a combination of hanging rail and shelving. Think honestly about how much of your clothing needs to hang versus fold. Long dresses and coats need a full-length hanging section with at least 150cm of clearance. Suits and jackets need around 120cm. Shirts and tops are more compact and can share space with fixed shelving.

If you're at the earlier stage of deciding which type of wardrobe is right for your room, it's worth reading our previous post on what makes sliding wardrobes such a practical choice for UK bedrooms before you go any further. It covers the different styles in detail and might help you settle on a direction before you get the tape measure out.

A Quick Checklist Before You Order

Run through this before you place anything. It takes five minutes and it's worth every second of it.

Wall width — measured at two heights, recorded as the smaller figure.

Ceiling height — measured in three positions, recorded as the smallest, accounting for coving or cornice.

Opposite clearance — at least 60cm between the wardrobe face and any furniture opposite.

Door swing — no room doors opening into the wardrobe position.

Skirting boards — measured the protrusion, checked the wardrobe base spec.

Depth — confirmed enough space from the wall outward for the model you want.

One Last Thing

If your room has an unusual layout — a chimney breast, an alcove, a sloped ceiling, or a wall that genuinely isn't straight — don't guess. The team at JZ Furniture is based in Barking, East London, and we're happy to talk through your room dimensions before you order. We deal with these questions regularly and it's considerably easier to solve a potential problem at this stage than after the wardrobe has arrived.

Getting the measurements right is the least exciting part of buying new furniture. But when your wardrobe arrives, fits exactly as planned, and looks precisely how you pictured it, you'll be very glad you did it properly.

And once everything is in place, our guide on looking after your furniture is worth a read — it covers the simple habits that keep pieces looking their best for years.