Door curtains: warmth, weight and the right pole
A heavy curtain over a draughty door is one of the oldest heat-saving fixes there is, and it still works. But a door curtain is the heaviest thing most homes will ever hang, so the hardware has to be chosen for the weight first.
Front doors, porch doors, cottage back doors and the door at the bottom of the stairs all leak heat the same way: a large, cold, moving slab with gaps around it. The traditional fix is a floor-length curtain in a heavy fabric drawn across the door at night. It is cheap compared to a new door, completely reversible, and research for Historic England at the Salford Energy House measured heat-loss reductions of up to 39% from heavy curtains over openings. The catch is the word heavy, and everything in this guide follows from it.
Why door curtains weigh so much
A door curtain only works if it seals: floor-length, wider than the opening, and dense enough to stop moving air. That means interlined wool, velvet or a similar thick weave, usually as a single generous panel. The numbers surprise people:
- A standard lined cotton pair on a sitting-room window: roughly 3 to 5kg in total, shared across two panels.
- A single interlined wool door curtain: typically 6 to 9kg on one panel.
- An interlined velvet door curtain for a tall period doorway: 8 to 12kg or more, all hanging from one run of hardware and dragged open and closed every day.
So a door curtain can put three times a normal curtain's load on half the usual hardware, and it gets more daily use than any window curtain in the house. Undersized poles bow, small brackets work loose in the wall, and cheap rings seize. Spec for the weight and none of that happens.
Option one: a fixed pole above the door
The classic installation. A strong metal pole mounts on the wall directly above the door head, spanning the opening and extending beyond the leading side so the open curtain can stack clear of the doorway. For the weights above, the working spec is:
- Diameter: 32mm metal as the starting point. A 19mm pole is not a candidate, and 28mm only suits a lighter door curtain. Our diameter and weight guide explains the load logic.
- Brackets into solid fixing. Above a period door that usually means masonry: use the lintel or brickwork, never plasterboard alone. Every bracket carries live load each time the curtain is dragged.
- Height and clearance. Mount the pole 10 to 15cm above the door head where the wall allows, so the heading clears the door and the frame furniture.
- Stack space. Extend the pole 20 to 30cm past the opening on the side the curtain parks, so the doorway opens fully with the curtain off the door.
- Length for the seal. The curtain should kiss the floor, or puddle slightly for the best draught seal. A gap under the hem defeats the point.
Option two: the rising portiere rod
Where there is no wall above the door, or the curtain must never block the door swing, the traditional answer is a portiere rod: a hinged rod that mounts on the door leaf itself. Open the door and the rod rises, lifting the curtain with it and carrying it out of the way; close the door and the curtain settles back against the frame. It is the fitting you see on vestry doors and Victorian hallway doors, and Cameron Fuller carries portiere rods in its metal range, finished to match the rest of the scheme.
Because the rod hangs its whole load on the door, portiere curtains sit at the lighter end of heavy: a lined wool works well, while a triple-interlined velvet is better on a fixed pole. The door hinges also take the extra weight, which old doors carry happily but a hollow modern door may not.
When a track is the better tool
Above some doors there is simply no room for a pole and its brackets: a low Victorian door head, a glazed fanlight, a doorway tight to the ceiling. A wall or ceiling fixed heavy-duty track solves it, keeps the hardware discreet, and rated versions carry serious fabric: Sunflex heavy-duty tracks are rated for curtains up to around 13.6kg, which covers any door curtain you can sew. The trade-off is the look: a track will never be the wrought-iron statement a black pole over a boarded door makes. Our pole or track guide covers the choice in full.
Everything here scales up. Historic churches use exactly these fittings over west doors, porches and vestries, where a heavy interlined curtain is one of the approved passive heat fixes for listed buildings, and parish halls divide space with the same heavy-duty tracks. For programmes of work across a heritage or community building, see our contract and volume page.
Common questions
Do door curtains really keep the heat in?
Yes. A heavy interlined curtain drawn across a door stops draughts and adds an insulating layer over a large cold surface. Research for Historic England measured heat-loss reductions of up to 39% from heavy curtains over openings, and the fix is fully reversible, which is why it is a standard recommendation for period and listed buildings.
What size curtain pole do I need for a door curtain?
Start at 32mm metal for an interlined door curtain and step up for velvet or very tall doorways. The deciding number is the curtain's weight on a single panel, usually 6 to 12kg, which is beyond what a 19mm or light 28mm pole should carry day in, day out.
What is a portiere rod?
A hinged curtain rod that mounts on the door itself and rises as the door opens, lifting the curtain clear. It suits doorways with no wall space above the frame and curtains that must move with the door. Cameron Fuller carries portiere rods in its metal range.
Which fabric should a door curtain be?
Dense and heavy: interlined wool, velvet or a thick weave, floor length, wider than the opening. Thermal or bump interlining does most of the insulating work. Light unlined fabric flutters in the draught instead of stopping it.
Can I fit a door curtain in a rented home?
A fixed pole needs proper wall fixings, so ask first. A portiere rod fixes to the door leaf with small screws and leaves the wall untouched, which is usually the easier conversation with a landlord.