How to Measure:

Width:

Measure your aperture width in 3 separate places and then deduct 20mm off your smallest size. You must deduct 20mm on a low threshold due to a special connection bracket. This will be your order size

Height:

Bottom Running ONLY Low Threshold : OPEN OUT DOORS:

Low threshold doors by definition are designed to be buried in the floor to give a minimum LEVEL upstand of 10mm. To achieve this, the threshold should be buried 55mm below your finished floor level. Therefore your order height is the distance from under your lintel to your finished floor level plus 55mm, less 10mm for fit. LOW THRESHOLD OPEN OUT DOORS SHOULD ONLY BE USED FOR INTERNAL ROOM DIVIDERS...

We recommend you request a sample, from our shop.There is a small charge plus the post and packing.