Place the door in its opening then shim it to the height you want the doorknob to be.
How much bigger are barn doors than openings.
Rough openings for doors.
Installing sliding barn doors which come in a variety of sizes and designs adds rustic charm and character to a home s interior.
Verify the width and height of the door frame are each 1 2 smaller than the rough opening width height.
The door itself measures 36 the jambs are 3 4 2 1 1 2.
This space is equivalent to the width of the door s that your ordering.
Take for example a 3 0 door.
The diagonal measurements should be the same.
This adds up to 37 1 2 for the size of the unit.
30 opening 34 wide door.
The barn door should be at least 2 4 inches bigger than the opening but that is subjective to your taste and home s decor.
The maximum allowable deviation is 1 8 to 1 4.
How much clearance is needed above the opening.
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.
The height is a bit trickier based on the casing and header.
However we realize that not everyone has standard door openings so we offer several sizes of sliding barn doors to help fit your needs with the following.
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.
The reason why the rough opening is 2 wider than the door is because of the door jamb on each side and the room needed to set the door.
Barn door opening measurements 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 the filler piece use stock 1 4 inch thicker than the door.
Maximum allowable deviation from square is normally 1 4.
Cut it to a width equal to the biggest gap in step 2 and 1 4 inch.
For our standard barn door hardware you need 6 inches of above opening clearance.
Verify the rough opening is square.
For a sheet rocked opening we recommend the door height be 1 2 larger than the opening.
Once hung the door will be another 1 2 off the floor for a total coverage above the door of 1.
Verify the rough opening is level and plumb.
Measure the gap between the rail and the doorway at the right and left sides at the top and the bottom.
As a result the door must be wider than the opening to eliminate sightlines from angles around the opening.