The opening size for a bifold door is measured from the finish face of the opening not the trim.
Bifold door rough opening dimensions.
Getting the rough opening size right the first time will save you from frustration when installing your doors.
The difference in height is insignificant since it adds only 1 4 inch.
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The trim hangs over the edge of the opening to cover the gap around the edge of the door.
Most bifold door openings are finished with drwyall.
The rough opening for a bifold with jambs is framed slightly wider to allow additional space for a door jamb on three sides.
Rough opening dimensions bi fold.
For bi fold doors the rough opening width is 1 1 4 larger than the total nominal width of the doors.
Finished opening heights are based on reeb s standard interior frame components and clearances.
Typically the rough bifold door opening should be sized 2 inches wider and 2 inches higher than the door itself regardless of the bifold door size.
How to determine bifold door opening size.
The difference between a rough opening and finished opening is usually 2 3 inches.
Just add 2 to the width of the actual door size.
When you open the door instead of swinging in or out it folds in half at.
So for the rough opening all you would have to do is minus the thickness of whatever you are using to finish it with.
While a standard door height is 80 finished opening.
For reference standard interior door widths range from 24 36 finished opening.
The finished opening should be just about the same size.
A casing type molding is often used around a bifold door.
For example a four foot wide 48 by six feet eight inches high 80 bifold set of doors would require a rough opening width of 50 inches and a height of 82 inches.
The doors have rollers that are adjustable so if the call out size is 60 x 80 than that would be the opening size that it would fit in.
Since bi fold doors are net sized to fit he frame the unit will fit a 2 0 net inside width frame.
The construction of the rough opening for single or double bifold doors should be designed so that the opening conforms to our recommended finished opening dimensions.
Framing rough opening sizes are really quite simple.
If using a pair of 2 0 bi fold doors each door is 1 0 nominal width.
Finished opening widths are true to the measurement a 3 0 is 36 a 2 8 is 32 a 6 0 is 72 etc.
Measuring a bifold door opening.
You should add 2 1 2 to the height of the actual door.
Door jambs are 3 4 inch thick for a total of 1 1 2 inches including 1 4 inch of space around the perimeter for shimming.
The finish ing of the rough opening can be either a wood frame or drywall because the bifold installation hardware that comes with the bifold can be surface mounted to either.
Doors will be undersized in width to accommodate the callside of the bifold.
If the bifold is shipped without a reeb frame the finished opening may differ slightly.