Interior Mahogany Doors and Bi-Fold Doors for sale. Sizes are as follows: (1) Interior Door - 30 inches wide (2 sets) Bi-Fold doors for 24 inch opening (1) Bi-Fold door for 32 inch opening (1) Bifold door for 36 inch opening Note: Bi-Folds come with tracks and hardware; and doors and bi-folds are standard heights. $10.00 each. Please call 519-468-3557 for further info. Please leave message with your number if needed and we will return your call as soon as we can. Will listen to all reasonable offers.