Need to infill gap before installing bifolds

Hi all,

I'm fitting bifolds 3m wide by 2.1m high into my house. The issue is I have an imperial sized opening on the height, so it's around 25-30mm too large.

They are top hanging bifolds. Ideally I'd fill the gap at the top so that I don't create a step at the bottom.

Any advice on what to fill this sort of gap with whilst still maintaining strength. Just a long strip of timber?

Thanks
Jon

In the first place, a piece of wood painted the same colour as the frame is about as good as you are going to get. Have you consulted the instructions for the frames, as they are top hung, and I guess quite heavy, there could be a problem fixing into the original house (lintel?). I don't think that the wood will be thick enough to take the weight (it in turn needs to be fixed upwards to the lintel?). My feeling is to use over length fixings and just use the wood as a spacer, just fixed up with screws to take its own weight with the frame fixings going right through it.
Frank

The company doing my bifolds can make them up to 2.5 m high.. Have you considered ordering ones to fit the gap, or have you bought a fixed sized unit in clearance etc and now looking to make it fit?

Thanks for the reply. Yeah I've bought 2100mm high ones at a very good price. Made to measure put a significant increase on the price compared to what I've paid.

Frank - Thanks for the reply, that's exactly what I was thinking. Basically it would be a spacer rather than taking any sort of load.