For most bedrooms, choose a wardrobe with around 600mm external depth. That gives roughly 500 to 550mm of usable internal space, enough for hangers, coats and folded storage without crushing garments. Use shallower depths around 450 to 500mm only in very tight rooms, and consider deeper options if you want sliding doors or need room for bulky garments.
TL;DR:
- Wardrobes with external depths of around 600mm typically offer 500 to 550mm of usable internal space, suitable for most hanging and folded storage needs.
- Hinged doors generally require 750 to 900mm of clearance to operate comfortably, while sliding doors can reduce internal depth but need at least 650mm externally.
- Accurate room measurement is crucial before choosing a wardrobe depth, with site checks for obstructions, wall conditions, and available gap, especially for custom or bespoke options.
- Internal layouts depend on depth, with short rails suited for shirts and jackets at 1000mm, and long rails for dresses requiring 1800 to 2000mm, impacting footwear and accessories space.
- Common mistakes include assuming old wardrobe depths are suitable or fitting large hinged doors in small rooms; bespoke surveys prevent these errors.
Table of Contents
- Wardrobe depth guide: external depth vs usable internal space
- How do door types change the depth you need?
- How do I measure my room before ordering a wardrobe?
- What internal layout works best for each depth?
- When should you choose shallower, standard, or deeper wardrobes?
- Depth decisions for alcoves, sloped ceilings and under-stairs spaces
- How a bespoke maker decides depth on site
- Common depth mistakes and quick rules to avoid them
- Get the depth right with a bespoke design visit
- Sources
- FAQ
Wardrobe depth guide: external depth vs usable internal space
The cited 600mm figure is the external measurement of the wardrobe carcass; actual usable internal space is reduced by material thickness, back panel, and door clearance.
A standard hanger measures roughly 420 to 450mm across the shoulders. Add garment bulk (a winter coat needs more room than a shirt), a few millimetres of rear clearance so sleeves don’t press against the back panel, and the thickness of the door or panel itself, and you can see why 600mm has become the default external depth for hanging storage in the UK.
Here’s how that breaks down by depth band:
- Shallow (45 to 50cm): suits box rooms, children’s bedrooms, or shoe and linen storage. Adult coats and full-length garments will feel cramped.
- Standard (55 to 60cm): the default for adult mixed wardrobes. Comfortably fits shirts, trousers on hangers, and most dresses without touching the back panel.
- Deep (62 to 70cm): built for sliding door systems, bulky outerwear, or when you want extra fittings like pull-out trouser racks alongside the rail.
A worked example: a 600mm external carcass, minus the panel material on the back, minus some rear clearance, minus the space for a hinged door and frame, leaves you with roughly half a meter of genuinely usable rail depth. That’s enough for a standard hanger with a small margin, which is exactly why the number has stuck as the industry benchmark rather than an arbitrary round figure.
How do door types change the depth you need?
Door choice isn’t a cosmetic decision. It changes how much depth you need, how much floor space the wardrobe demands, and how much of the interior you can actually see and reach.
- Hinged doors need less carcass depth but far more room in front. Comfortable access typically requires 750 to 900mm of clear floor space for the door to swing open and for you to stand and browse.
- Sliding doors save floor space by running along a track rather than swinging out, but the tracks and overlapping panels reduce usable internal depth, which is why sliding systems are often specified at 650mm or more externally to compensate.
- Bifold and pocket doors sit somewhere between the two. They need less swing clearance than a fully hinged door but slightly more mechanical depth than a basic hinge, and they suit narrower openings such as alcoves or landing cupboards.
Sliding doors also mean you only ever see part of the interior at once, which can make certain pull-out fittings less practical compared with the full visibility a hinged door gives you.
Pro Tip: If your bedroom gap opposite the wardrobe is less than about 900mm, sliding doors often feel more comfortable day to day than hinged doors in a tight room.
How do I measure my room before ordering a wardrobe?
Getting the depth right starts with an accurate site measurement, not a guess based on the old wardrobe you’re replacing.
- Measure from the wall face, not the skirting board, and note any coving, radiators, or sockets that will interrupt the depth or width available.
- Check for obstructions at floor and ceiling level, including sloped ceilings, beams, or door architraves that might reduce the effective opening.
- Measure the gap opposite the planned wardrobe. Under roughly 600mm, sliding doors are usually the sensible choice; between 600 and 900mm it’s a judgement call based on how you use the room; above 900mm, hinged doors will generally work fine.
- Record everything before you order: wall-to-wall width, floor-to-ceiling height at both ends (older properties are rarely level), and depth of any alcove or recess.
- Do a final site check once you have a shortlist of depths in mind, ideally with a tape measure and the actual wardrobe brochure or CAD drawing in hand.
Our fitted wardrobe planning guide walks through this checklist in more detail if you’re preparing for a design visit.
What internal layout works best for each depth?
Depth numbers only matter once they translate into a layout you’ll actually use. Rail height and shelf spacing decide whether a wardrobe holds everything you own or leaves half your clothes creased in a pile.
- Short hanging rails sit around 1000mm from the base, ideal for shirts, jackets and skirts.
- Long-hang rails need roughly 1800 to 2000mm of clear drop for dresses and full-length coats, so plan double rails only where the ceiling height allows it.
- Shelving for folded items typically works best at 300 to 400mm spacing; anything tighter makes stacked jumpers awkward to lift out.
- Pull-out accessories, drawers and shoe racks all draw on the same internal depth as your hanging space, so a shallower wardrobe leaves less room for these extras once the rail is accounted for.
Designers often favour a mixed layout of double-hang plus one long-hang bay, which uses depth efficiently across most bedroom sizes. Our wardrobe interior layouts guide shows several templates matched to different depth bands.
When should you choose shallower, standard, or deeper wardrobes?
- Shallow (450 to 500mm): works for children’s rooms, box rooms, or front-facing linen storage, but adult coats and standard hangers risk feeling cramped at this depth. See our shallow wardrobe ideas for layouts that make the most of tight rooms.
- Standard (550 to 600mm): the sensible default for most adult bedrooms with a typical mix of hanging and folded clothing.
- Deep (620 to 700mm and above): worth specifying if you’re set on sliding doors, store bulky winter coats regularly, or want extra fittings like a pull-out trouser rack alongside a full-length rail.
Depth decisions for alcoves, sloped ceilings and under-stairs spaces
Standard depth bands assume a flat wall and a square room, which many period properties simply don’t have. Bespoke joinery earns its keep here.
- Alcoves often need the carcass cut back around skirting boards or a chimney breast, so the depth varies from top to bottom of the same unit.
- Sloped ceilings in loft conversions mean the usable depth shrinks the higher the shelf or rail sits, so fittings are staggered rather than uniform.
- Under-stairs cavities rarely offer a consistent depth at all, which is why tailored under-stairs storage is measured section by section rather than to one figure.
How a bespoke maker decides depth on site
A proper design visit starts with a full survey: wall-to-wall measurements, floor-to-ceiling height at both ends, and every obstruction that might steal depth once panels and doors go in.
From there, internal bay depths get matched to what you actually own. Someone with mostly folded knitwear needs different shelf spacing to someone with a rail of full-length coats.
- Site survey records clearances, skirting lines and any sloped or uneven walls before a single panel is cut.
- Bay depths and fittings are specified against your clothing mix, not a generic template.
- Finest Furniture Studio typically installs within 7 to 12 days, backed by a 10 year guarantee, and we take away and dispose of your old wardrobe as part of the job.
Common depth mistakes and quick rules to avoid them
Three checks stop most depth mistakes: measure the opposite gap before choosing door type, subtract at least 60 to 70mm from any external depth figure to estimate usable rail space, and never assume an old wardrobe’s depth suits a new layout.
The most common error in small bedrooms is fitting a standard 600mm hinged wardrobe where a sliding system would have freed up genuine floor space. A quick site measurement catches this before it becomes an expensive lesson.
— Aureliu
Get the depth right with a bespoke design visit
Off-the-shelf wardrobes force you to pick from a handful of fixed depths and hope one fits your room. Finest Furniture Studio builds every wardrobe to your exact measurements instead, so the depth, rail heights and shelf spacing are decided around your actual bedroom and your clothing, not a warehouse catalogue.
A design visit covers the full survey described above: wall measurements, ceiling height, alcove or slope constraints, and a discussion of door type based on your room’s clearance. We install most fitted wardrobes within 7 to 12 days, back the work with a 10 year guarantee, and take away your old wardrobe as part of the job at no extra fuss. If you’re in Richmond, Wimbledon, Putney, Kingston, Chiswick, Fulham, Chelsea, Ealing, Twickenham, Barnes, Hammersmith or across Central London, get in touch for a free design visit by calling or messaging 07468 150807, or explore our bespoke wardrobe options for West London to see how custom depths are handled from survey to install.
Sources
For readers who want to dig into the source figures behind this guide: the wardrobe depth breakdown explains the arithmetic behind the 600mm standard, the Cutsmart planning guide covers sliding versus hinged trade-offs in detail, and the Renovate with Reno clearance guide sets out front-access planning figures worth checking against your own room.
- Wardrobe depth: how deep should a wardrobe be?
- Planning & positioning guide | Cutsmart
- Where should wardrobes go and how deep should they be?
- Sliding vs hinged wardrobes for UK small rooms & rentals – CHOICEWARDROBE
FAQ
What is a good depth for a wardrobe?
Around 600mm external depth is the standard for most UK bedrooms, giving roughly 500 to 550mm of usable internal space for hanging clothes.
Is 50cm deep enough for a wardrobe?
A 50cm depth works for children’s rooms, shoe storage or folded linen, but adult coats and full hangers can feel tight at this depth compared with the 55 to 60cm standard.
Can a wardrobe be 30cm deep?
A very shallow depth is too shallow for hanging clothes on standard hangers; it suits shelving-only storage such as linen cupboards rather than a functioning wardrobe.
What is the 70/30 wardrobe rule?
Finest Furniture Studio adjusts that ratio during a design visit to match your actual clothing mix rather than applying it as a fixed rule.
