Sizing doors with casing/molding - Measure from outside to outside (width) and top of casing to floor (height), then add 1” to both dimensions.
Without casing/molding - Measure inside opening then add 3” to the width and 1” to height.
Distance from top of door to ceiling must be a minimum of 6”.
When mounting track a 3/4 x 4” edger board must be attached to the wall.
**Two (2) doors side by side are referred to as bi-parting doors and need two (2) track systems -one (1) for each door.