Add that amount to the opening height.
Measuring a barn door.
In this example the total.
Measure the trim measure from the outside edge of the trim to the inside edge.
Trimmed or cased opening width.
For the door height we recommend measuring from the floor to the top of the casing.
Multiply the trim size by 2 and add it to the opening width.
Measure from the header to the floor to determine the door.
How to measure for a barn door in three steps using a tape measure begin at the left edge of the opening and measure straight across to the right edge.
In instances where casing is present we recommend building the door to the same size as the opening casing.
How to measure for a barn door track in 4 steps step 1.
This may seem like common sense but sliding barn doors aren t your typical door.
Your next step is to calculate the width of the door s opening starting from inside the door jamb on.
Measure the height of your door opening from the top molding edge to floor.
Measure across for the width and from the top of the casing molding to the floor for height.
To figure out what size track you need double your final width measurement.
While the style of barn door you choose will come down to your personal preference you.
Record the door width.
How to measure for a barn door barn door opening measurements.
For the most appropriate door width dimensions measure the opening and add a few inches.
Next you ll want to determine the height you want your door to be.
Measure from outside to outside of casing molding.
Barn door measuring guide for door openings with casing molding.