Fitting Under Stairs Storage Without Losing Hallway Space

Start With the Triangle, Not the Wall

Under stairs space is never a rectangle. In a typical Victorian or Edwardian terrace the staircase climbs at roughly 40 to 42 degrees, which means the usable height changes fast as you move along the hallway. At the newel post you might enjoy 1.9 metres of clear headroom. Step half a metre along the rake and it can drop to 1.2 metres. Near the bottom tread you may have only 600mm before your head meets the string.

Before you buy anything, measure the height at 300mm intervals along the floor and mark each figure on the wall in chalk. Then measure the depth you can steal from the hallway. In a narrow hall, 350mm is comfortable, 450mm is generous, and anything beyond that starts to make the corridor feel like a tunnel. Aim to leave at least 900mm of clear walking width so the hall still works as a route to the front door.

While you are down there with a torch, note the awkward things: the electric meter, the stopcock, a radiator pipe running along the skirting, a gas isolation valve. All of these must stay accessible. A good cupboard is designed around them rather than over them.

Pull-Out Drawers: The Best Value from a Shallow Rake

The lowest, shallowest part of the triangle is where most people give up and shove a broom. That is a waste. A pull-out drawer on castors or heavy-duty runners can slide a full 800mm into the space beneath the bottom treads, giving you a deep tray that is genuinely easy to use.

• Use full-extension runners rated for at least 45kg on shallow drawers, and castors on a ply base for anything deeper than 700mm.
• Make the drawer front follow the rake in two or three stepped panels so it reads as a deliberate design rather than a mistake.
• Fit a stop block at the back so a loaded drawer cannot tip forward onto the hall floor.
• Line the base with a washable mat if you plan to store boots, wellies or cleaning supplies.

Pull-out trays are also kinder on your back than scrabbling on hands and knees, which matters more than most of us admit. A drawer that glides out at waist height is worth more than twice the volume you can only reach by crawling.

Angled Cupboards and Door Choices That Actually Open

On the diagonal face of the staircase you have three sensible options. The first is an angled door that sits flush with the rake, hinged on the vertical edge. The second is a pair of bi-fold doors, which is often the better choice in a hallway because nothing swings out into the walking route. The third is a shallow hinged door on the flat face under the newel, with the deep storage behind it.

Keep doors to around 500 to 600mm wide. Wider panels in 18mm MDF will sag over time unless you use a proper frame. If handles catch on coats or bags, push-to-open latches are neat, though they can be fiddly in a dark hallway where you cannot see the catch. Brass knobs and black iron latches tend to age well in period homes; cheap chrome rarely does.

What to Store, and Why Height Matters

Plan storage around real objects rather than vague categories. An upright vacuum needs around 1.1 metres of clear height with the handle down. A folded ironing board is roughly 1.25 metres long. A mop and bucket want 1.2 metres. Cleaning caddies need about 300mm, and a family's shoes take 200mm per pair stacked sensibly.

• Heaviest items at the bottom, where the triangle is widest and lifting is easiest.
• Everyday items on the pull-out drawer, seasonal items behind the angled door.
• Fit a socket inside if you want to charge a cordless vacuum out of sight.
• Leave vents or grilles if you are storing damp coats or chemical cleaners.

If the space is genuinely tight, resist the urge to overfill it. Three quarters full is the point at which a cupboard stays useful rather than becoming a place things go to be forgotten.

Details That Suit a Period Hallway

An under stairs cupboard in a period home should look like it was always there. Match the door style to the rest of the house: four-panel doors in a Victorian terrace, simple beaded boards in a cottage, a plain flush front in a 1930s semi. Run the skirting around the base of the cupboard rather than stopping it dead, and consider a small plinth to match.

Paint the carcase in an eggshell that ties into the hall, and keep the reveal tight so the cupboard does not announce itself. If original panelling or a former pantry door survives, repair rather than replace. Always leave a removable access panel for the meter and stopcock, and note that solid walls behind staircases can be cold and damp, so a breathable lining and a small vent will save the contents.

Sequencing the Work and Keeping the Hallway Clear

Empty the space completely first, then check the electrics and any pipework before you design the carcase. A joinery build usually takes two to three days on site, with painting after. Protect the floor with hardboard, and work in short bursts so the hallway remains passable, especially if you have children or a front door that opens directly into the space.

Ready-made under stairs units can work well, but measure the rake carefully and check the depth against your measurements, not against the photograph on the box. The best results come from treating this awkward triangle as a proper piece of furniture: measured, drawn, and built to fit your hallway exactly.