How to measure for a fire door
Accurate measurements are the difference between a door that fits and one that has to be remade.
Using your sizes
In the 3D designer, choose From my opening and type in your smallest width and height. We size the door and frame to fit, leaving about 10mm at each side and at the head for fixing and packing. For example, an opening of 912 × 2091mm takes an 826 × 2040mm door in an MDF frame.
On a product page, use Find your size to see which standard size fits your opening.
Not confident?
Book a measure and specify survey. We’ll measure every opening and you approve the specification online before anything is made.