The measured sketch
Add A to G from the survey list, mark which face each number belongs to and include the ceiling at three points.
The Rooms · 8 minute guide
Wardrobe over a stair bulkhead: a measured planning guide.
The box in a small bedroom is not leftover space to hide. It is the shape of the stair below, and it can become useful furniture once its width, height, depth and clearances are drawn properly.
·Written in the design studio
Front elevationIllustrative only
The short answer
Keep the stair safe. Make the room useful.
A fitted wardrobe can normally be built around an existing stair bulkhead. The useful move is to treat the box as a fixed part of the survey: full-height hanging sits on clear floor, while the raised bay takes drawers, shelves, short hanging or occasional storage.
Do not begin by asking how much of the box can be cut away. Begin by recording the real shape and checking the stair below. Good cabinetry works around that safety envelope and makes the whole wall read as one calm elevation.
Take the shape, not one dimension
The seven measurements worth sending.
A single width and height cannot describe a stair box. Use a tape, make a rough front elevation and write every dimension onto the sketch. Millimetres are easier to read consistently than a mixture of units.
A
Wall width
Measure at the floor, across the bulkhead and near the ceiling. Keep all three.
B
Ceiling height
Record left, centre and right, especially in an older house or below a slope.
C
Bulkhead width
Measure every front edge and any step, return or change of direction.
D
Bulkhead height
Measure from finished floor at the low edge, high edge and each change of shape.
E
Bulkhead depth
Measure how far it projects into the room at floor and at the top.
F
Clear room depth
Measure from the proposed wardrobe front to the bed, door and main walkway.
G
Fixed points
Mark skirting, sockets, switches, radiators, pipework and window or door trims.
Photograph the bulkhead square-on, from each side and from the stair below. Include one image with the tape measure open against it. The photographs do not replace the dimensions, but they let a designer understand which line each number belongs to.
Check the wall at floor, middle and ceiling. In an older house those numbers often differ, and the smallest decides what can pass between the walls. Record any access panel too. Furniture should not make a service point disappear permanently.
Layout patterns
Four ways to use the raised bay.
The front can look continuous while the interior changes behind it. Put each kind of storage where the available height and depth genuinely suit it.
01
Full-height bays beside it
Put long hanging and the deepest storage on clear floor either side. The bulkhead bay can then take shallower drawers, shelves or short hanging without compromising the useful sections.
02
Drawers over the box
A run of shallow drawers can make the raised section useful and keep daily items between waist and shoulder height. Runner depth and hand clearance must be checked against the real projection.
03
A raised short-hanging bay
Shirts, jackets or folded trousers can hang above a tall bulkhead when the remaining clear height is sufficient. The rail position should follow the garments, not an assumed standard bay.
04
Desk or seat beside the wardrobe
When the box projects too far for a comfortable wardrobe front, the elevation can change use. A desk, bench or open shelf may absorb the level change while full-depth storage moves to the clearer part of the wall.
Illustrative worked example
A 2,850 mm wall with an 800 mm stair box.
Imagine a wall 2,850 mm wide and 2,400 mm high. A bulkhead occupies an 800 mm-wide section, rises to 980 mm and projects 760 mm into the room. Those numbers are an example only, chosen to show the decision sequence rather than a standard box-room detail.
The first layout keeps one clear full-height bay for long hanging. The bulkhead bay receives shallow drawers above the box, with shelves higher up. The remaining bay uses double hanging. From the room, the doors share a single top line; inside, each section follows the space available behind it.
Wall2,850 W × 2,400 H mm
Bulkhead800 W × 980 H × 760 D mm
Bay 1Clear full-height hanging
Bay 2Drawers and shelves over the box
Bay 3Double hanging on clear floor
This is a planning example, not a manufacturing drawing or promise that the same arrangement fits another room. Door thickness, hinges, drawer runners, scribes and the real stair enclosure all reduce usable space.
The stair-safety check
The wardrobe must follow the stair, not change it.
In England, Approved Document K shows at least 2 metres of headroom over the access between levels. Its reduced 1.9 metre centre and 1.8 metre edge arrangement applies specifically to loft conversions where 2 metres cannot be achieved. Existing homes and individual stairs vary, so those figures are a safety check, not permission to alter a bulkhead.
Cabinetry fixed around an existing enclosure is different from cutting, lowering or moving it. If the proposal affects the stair opening, structure, guarding, fire separation or electrical work, check the scope with a competent professional and a building control body before work starts. GOV.UK notes that alteration work can need building regulations approval even when planning permission is not the issue.
Our default design approach is simple: survey the existing safety envelope, keep it intact and make the storage earn its place around it.
The useful first brief
Send the room, the box and what must fit.
A design can begin from a clear sketch and photographs. The final furniture still follows a professional survey before manufacture.
The room photographs
Show the whole wall, both returns, the stair below and the bed or door opposite the proposed wardrobe front.
The storage count
Separate long hanging, short hanging, folded clothes, drawers and shoes. The raised bay should solve a real category.
The room circulation
Note bed size, door swing and the narrowest walkway. A wardrobe is not useful if its doors or drawers cannot open comfortably.
Straight answers
Stair-bulkhead wardrobe questions, answered plainly.
Can a fitted wardrobe be built over a stair bulkhead?
Usually, yes. The wardrobe is designed around the existing enclosure, with the space above used for hanging, shelves or drawers according to the height available. The stair structure and required headroom must remain untouched unless any alteration has been properly designed and approved.
What can go inside the wardrobe above the stair box?
A shallow drawer stack, shelves, short hanging or occasional storage can all work. The right choice depends on the bulkhead height and depth, the door opening and what must remain accessible. Full-length hanging normally belongs in the clear bays beside it.
Can the stair bulkhead be cut down or removed?
Do not assume so. It may enclose the headroom above the stair or form part of a structural and fire-safety arrangement. Treat the existing box as fixed until a competent professional and, where required, building control have confirmed an alteration is acceptable.
How do I measure a box-room stair bulkhead?
Record the wall width at floor and ceiling, several floor-to-ceiling heights, the bulkhead width, height and depth at every change of shape, plus skirting, sockets, radiators, doors and windows. Photograph the box from the bedroom and the stair below, with a tape measure visible.
Will a wardrobe over the stair box make a small room feel smaller?
It can if the projection, door style and finish are handled badly. Taking the furniture to the ceiling, keeping one calm front line and placing deeper storage only where the room can carry it often makes the awkward box feel less prominent, not more.
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A difficult shape is still a design brief
Show us the stair box. We will draw the whole wall.
Send photographs and rough dimensions, or book a free design visit. We survey the room properly before anything is made.
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