https://sciencewiki.science/wi....ki/Bifold_Door_Seal_
https://historydb.date/wiki/An...._InDepth_Look_Into_T
Bi-Fold Door Repair They can be either exterior or internal, bifold doors provide flexibility that can be tailored to meet the needs of any homeowner. But, like all other fixtures and fittings, they are prone to suffer from the occasional wear and tear. Thankfully, it's not hard to get them back in good shape. With a bit of patience and basic woodworking knowledge