A walk-in closet joins a bathroom in two common ways: you walk through the closet to reach the bath, or the closet opens off the bathroom. Hanging clothes take 24 in of depth and need an aisle of at least 24 in in front, with 36 in comfortable. So a closet with clothes on both sides wants about 6 to 7 ft of width, and one with clothes on one side about 4 to 5 ft.
Three suite layouts, drawn to scale
Each plan draws the closet and the bathroom as one space, with a short wall and an opening between them. The dashed boxes are the clear spaces: the code’s in front of each bathroom fixture, and a 24 in aisle in front of the clothes. Open a plan in the layout planner to check your own sizes.
- Closet aisle: 48 in
- Closet aisle: 48 in
- Clear in front of the shower: 120 in
- Toilet centerline to the side: 18 in
- Clear in front of the toilet: 61½ in
- Clear in front of the vanity: 75 in
- Sink centerline to the side: 27½ in
Layout A: a walk-through closet
The bedroom door opens into a closet 8 ft wide and 5 ft deep, with 60 in of hanging clothes on each side and a 48 in aisle between them. A short wall with a 30 in opening leads into the bathroom: a 60 × 36 in shower, the toilet with 18 in on each side and a 48 in vanity. Every comfortable-spacing check passes.
- Best for: a primary suite, with two people sharing 10 ft of hanging space.
- The trade-off: you pass through the closet to reach the bath, so a door at the opening keeps steam out of the clothes.
- Toilet centerline to the side: 18 in
- Clear in front of the toilet: 66 in
- Clear in front of the vanity: 75 in
- Sink centerline to the side: 36 in
- Closet aisle: 37½ in
- Closet aisle: 82 in
Layout B: a closet off the bathroom
The bathroom comes first: a 60 in tub and the toilet on the far wall, a 36 in vanity on the side wall, all with comfortable spacing. A short wall with a 30 in opening leads into a closet about 5 ft wide, with 82 in of hanging clothes on its end wall, 36 in of shelves and an aisle of 37½ in.
- Best for: dressing after a shower, with the bedroom kept separate.
- The trade-off: clothes on one side only; a 7 ft wide closet would take them on both.
- Closet aisle: 36 in
- Toilet centerline to the side: 15 in
- Clear in front of the toilet: 30 in
- Clear in front of the vanity: 39 in
- Sink centerline to the side: 16½ in
Layout C: a small walk-in closet and bath
The smallest suite here is 5 ft wide. A 5 ft square closet holds 60 in of hanging clothes on one side with a 36 in aisle, and a 30 in opening leads into a 5 × 7½ ft bathroom: the tub across the end, then the toilet and a 24 in vanity on one wall, 30 in apart center to center.
- Best for: a bedroom with a long, narrow space beside it.
- The trade-off: the toilet and the sink sit at or near the code minimums, and there’s rod for one person.
What the plans assume. The fixtures are drawn at the planner’s nominal sizes, in a room measured between finished walls, with the door where it’s shown. A plan that passes keeps the code’s spacing for those sizes; it doesn’t show that a particular product fits. Check the spec sheet of each fixture you buy. A tub or a shower base goes in against the studs before the walls are finished, so fit it to the stud-to-stud opening its installation sheet gives, not to the finished width: on Kohler’s drawing of its Villager tub, the finished end wall laps ⅞ in over the tub. How each rule is read: what the planner checks.
How much room a walk-in closet needs
| Part of the closet | Size |
|---|---|
| Depth for hanging clothes | 24 in |
| Depth for shelves | 12 to 16 in |
| Aisle in front of the clothes | 24 in at least, 36 in comfortable |
| Width, clothes on one side | About 4 to 5 ft |
| Width, clothes on both sides | About 6 ft at least, 7 ft comfortable |
| Rod length | About 4 ft per person |
| Rod height | 68 in for long hanging; 84 and 42 in for two rods |
From closet makers’ guides and the Department of Defense family housing standard (see the sources). The widths are 24 in of clothes plus the aisle, on one side or both. The 2021 International Residential Code sets no closet size: closets aren’t habitable rooms. These are planning figures, not accessibility rules: someone using a wheelchair needs more room to turn and reach, so plan from the ADA bathroom requirements instead.
Two things to plan for in a closet next to a bathroom. The bathroom needs its exhaust fan or a window that opens, as the code requires in every bathroom, and a door between the two keeps the steam with the fan. The openings in these plans are 30 in wide, as wide as the bedroom door.
Questions people ask
Should the closet be before or after the bathroom?
Before it, as a walk-through (Layout A), you dress on the way out and the bathroom stays private. After it, opening off the bath (Layout B), you dress straight after a shower. Either way, a door between the two keeps steam out of the clothes.
How big is a small walk-in closet with a bathroom?
Our smallest suite is 5 × 13 ft: a 5 ft square closet with clothes on one side and a 5 × 7½ ft bathroom with a tub (Layout C).
How wide is a walk-through closet?
About 6 ft at least with clothes on both sides (24 + 24 in of clothes and a 24 in aisle), and about 7 ft to be comfortable. Layout A is 8 ft wide, with a 48 in aisle.
How much hanging space does a couple need?
About 4 ft of rod per person, so 8 ft for two. Layout A has 10 ft; two rods stacked at 84 and 42 in double it.
Sources
- 2021 International Residential Code, chapter 3 (R307.1 fixture clearances, R305.1 ceiling height) and chapter 27 (P2705.1 fixture spacing, P2708.1 showers), read in Colorado’s adoption without amendments on UpCodes
- Closet sizes: Organized Living’s closet design guide (24 in deep for hanging clothes; rods at 68 in for long hanging, 84 and 42 in for double hanging), California Closets (an aisle of 24 to 30 in; about 6 ft wide for clothes on both sides), This Old House (shelves 12 to 16 in deep) and the U.S. Department of Defense family housing standard, UFC 4-711-01 (4 ft of rod per person)
- NKBA Kitchen & Bath Planning Guidelines, 4th edition summary: walkways at least 36 in wide
- NKBA’s free bath planning guidelines: the roomier spacing (18 in beside a toilet, 20 in beside a sink, 36 in between two sinks, 30 in in front of each fixture, a 36 × 36 in shower, a 32 in door opening, a 36 × 66 in toilet compartment). Its newer, paid editions change some numbers.
- Kohler Underscore alcove tubs, 60 × 30 in and 60 × 32 in spec sheets
- Toilet depths from the wall: Kohler Cimarron round and elongated spec sheets
Checked October 19, 2026. All plans were drawn and checked with the BathDraft layout planner; centimeters are converted from inches.