Bifold Doors - Pre finished Walnut Bifold Doors All Stock Confirmed Before Payment is Taken. Designed to impress, the walnut door collection provides you with a range of internal bi-fold doors that are available to order directly from us. Refine Your Search Refine Your Search ∨ Size Select All 1981mm x 762mm x 35mm (78" x 30")1981mm x 686mm x 35mm (78" x 27") Price (£) to Manufacturer Select All LPD All Products Walnut Vancouver Bi-fold - Pre Fini...From £303.91 inc. VATFrom £253.26 ex. VATView Product