Firstly, if your bi-folding doors are hard to slide, please check and make sure the frame is square and plum. All gaskets should measure 11mm between the frame and panel and the rebated locking side should measure 14mm between the frame and panel. If the doors are still hard to slide, please check that the door has been toe and heeled correctly. If you are unsure if the door has been toe and heeled correctly, we recommend you to get in touch with your installer and ask them to check this.
Heaton Estate, Bradford Road, Bailiff Bridge, Brighouse, West Yorkshire HD6 4BW
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