The Internal Oak Unfinished Rustic Grange Bi-Fold Door by Liberty Doors comes from the internal solid Oak collection and is unfinished, ready to paint or stain however you want. This particular design features a rustic finger-jointed Oak bi-fold design, constructed with a solid core. Each Liberty Door comes complete with a lifetime guarantee, ensuring your product is covered for 25 years. Please note these bifolding doors are not supplied with a bifold track.