If you are hanging a solid barn door we recommend using a header board. This can simply be a pine plank that is 1 inch thick by 6 inches wide. You can paint the plank to match the walls or stain the plank to match the door.
The lengths are as follows:
When using a 78.75-inch track, use an 80-inch header board.
When using a 98-inch track, use a 100-inch header board.
When using a 118-inch track, use a 120-inch header board.
We also offer a 78.75" hardware kit
and a 118" hardware kit