Extensions (Add On's)

Extensions are available in 15mm, 30mm or 50mm sections and will be useful if the brickwork opening is larger than the maximum frame size we can manufacture.

For example, you have an opening height of 2170mm and the maximum height we can manufacture a composite door with a cill and pvc threshold is 2147mm. A 30mm extension will be required, we will reduce the frame height to 2140mm and add the 30mm extension - this achieves the desired height of 2170mm.