Steel Door Sizes: Standards and Deviations
Standard sizes for apartment, building entrance, villa and fire doors, how clear opening relates to overall size, and the point at which an order becomes made-to-measure.
Steel Door Sizes and Installation
A wrong measurement costs more than the door: a leaf that has been made cannot be shrunk, and a frame cannot be enlarged without rebuilding the wall. Knowing which figure belongs on the order form therefore comes before choosing a model. There are two measurements and they must not be confused: the frame opening is the clear passage left when the door is open; the finished trim size is the total area the frame and architraves occupy on the wall. For a flat door, 90×200 cm frame opening and 108×210 cm finished size are standard; for villa and building entrances, 145×215 and 165×223 cm; for a fire door, 90×200 and 104×208 cm. A third figure, frame depth, follows the thickness of the wall. The guides here cover where to hold the tape, what to do with a non-standard opening, why the frame counts as the load-bearing half of the door, and the order of an installation day.
Steel Door Installation Step by Step
From stripping the old door to closing the new leaf for the first time, installation follows a fixed order. The checks at each step and what breaks when a step is rushed.
Steel Door Frames: The Half That Carries Everything
Buyers look at the leaf; fitters look at the frame. Profile forming, depth, keep pockets, anchoring and architrave design decide a door's life more than the leaf does.
How to Measure a Steel Door Opening
A wrong measurement turns a finished door into scrap. This is the order we ask for: rough opening width, height, wall thickness, floor level and swing direction, with the traps at each step.
Luxury Steel Doors
Standard sizes from stock, made to measure for other openings.