Measure from outside to outside of casing molding.
How big is a barn door.
Add 1 to 2 per door for overlap depending on privacy needs.
The barn door should be wide enough to completely cover the doorway with an inch or two of overhang on both sides and about one inch at the top.
Don t get all excited about a big chunky barn door build a 40 wide one for a 6ft long door track.
While the style of barn door you choose will come down to your personal preference you will need to be aware of barn door vs opening dimensions when making your choice.
For a sheet rocked opening we recommend the door height be 1 2 larger than the opening.
Sheetrocked opening no trim or casing width.
The height is a bit trickier based on the casing and header.
Add 4 to the measurement and you have your recommended door width.
Once hung the door will be another 1 2 off the floor for a total coverage above the door of 1.
Measure from inside to inside of the opening.
Ideally the door will cover 2 to 3 inches beyond the opening on each side.
It should be tall enough so that when it s hung on the track there is about 1 2 inch of space between the bottom of the door and the floor.
Total door width will be 36.
Mounting over a bay window.
We recommend 1 1 2 to 2 of overhang on each side.
Barn door measuring guide for door openings with casing molding.
30 opening 34 wide door.
What i need to know is if the window is surrounded by 3 4 trim and the shutters are 1 and 3 4 thick can i mount the hardware to the wall with enough space to run the shutters back and forth over the window opening or do i absolutely have to.
In this example the opening width is 32 4.
Structural support is required barn doors can be heavy up to 200 pounds or more so for sturdiness most people mount the track to a header attached to the wall studs above the doorway.
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.
I have calculated i need 12 hardware.
Measure across for the width and from the top of the casing molding to the floor for height.
If you do you won t be able to get your door to completely clear your doorway.
I am mounting shutters using the same hardware used for barn door sliders.
Most barn door sizes fall anywhere between 36 wide on the shorter side by 96 tall on the longer side.
To determine the proper door width add about 4 to 6 inches to your measurement.
Generally most standard barn doors are approximately 36 x 84 or 42 x 80 with enough extra lip to overlap most standard door frames 36 x 80 by an inch or so.
A 3 foot door requires 6 feet of track.