Your door s width should be 2 to 3 inches wider than the door opening and 1 inch higher than the dimensions of your opening.
Interior barn door opening overlap detail.
Measure from outside to outside of casing molding.
The final option is bypass doors.
In this application the doors overlap and slide over one another so that half of the opening is accessible at any time.
If you want it to completely cover your overhead door trim you ll have to measure from the top of that down instead of just inside the door.
To have privacy the door usually overlaps the opening by an inch so that a 2 6 opening will require a 2 8 door.
The determining factor in how high or how wide you want to go is just how much you want your sliding door to overlap with the opening.
First make sure that the header space over the opening can support the weight of the hanging barn door.
Barn door measuring guide for door openings with casing molding.
This means on one side of the door opening or the other there should be at least 2 8 and perhaps a little more to ensure all the hardware can fit properly.
This application is great for areas where barn doors are desired but there isn t adequate room on either side of the opening for the door to slide.
Measure across for the width and from the top of the casing molding to the floor for height.