Bifold Door Rough Opening Calculator: 2-Panel, 4-Panel & 6-Panel
By WholesaleDoorHub Team · May 2026
Direct answer: Bifold doors are specified by the number of panels (2, 4, or 6) and the opening width. The rough opening must be calculated precisely — bifold doors have less installation tolerance than hinged doors.
Bifold Door Rough Opening Calculator: 2-Panel, 4-Panel & 6-Panel
Use this table to determine the correct rough opening for your bifold door order:
| Configuration | Door Width | Rough Opening Width | Rough Opening Height |
|---|---|---|---|
| 2-panel (1 pair) | 24" | 25-1/2" | 82" |
| 2-panel (1 pair) | 30" | 31-1/2" | 82" |
| 2-panel (1 pair) | 36" | 37-1/2" | 82" |
| 4-panel (2 pairs) | 48" | 49-1/2" | 82" |
| 4-panel (2 pairs) | 60" | 61-1/2" | 82" |
| 6-panel (3 pairs) | 72" | 73-1/2" | 82" |
| 6-panel (3 pairs) | 96" | 97-1/2" | 82" |
Rule: Rough opening = door width + 1-1/2". Height rough opening = 82" for standard 80" bifold doors.
What Wholesale Bifold Doors Cost in 2025
| Configuration | Style | Wholesale Price |
|---|---|---|
| 2-panel 24"×80" | Hollow core shaker | $85–$130 |
| 2-panel 36"×80" | Hollow core shaker | $95–$145 |
| 4-panel 48"×80" | Hollow core shaker | $145–$220 |
| 4-panel 60"×80" | Hollow core shaker | $165–$250 |
| 6-panel 72"×80" | Hollow core shaker | $220–$340 |
| 4-panel 48"×80" | Mirrored | $220–$380 |
| 4-panel 60"×80" | Mirrored | $280–$440 |
| 4-panel 48"×80" | Louvered | $180–$280 |
B2B Procurement Checklist
- [ ] Opening width confirmed
- [ ] Rough opening calculated (opening width + 1-1/2")
- [ ] Number of panels specified (2, 4, or 6)
- [ ] Style specified (shaker, louvered, mirrored, panel)
- [ ] Hardware included or separate
- [ ] Finish specified (primed, pre-finished, unfinished)
FAQ
Q: What is the standard bifold door size?
A: 4-panel 48"×80" is the most common bifold door size for closets. 2-panel 36"×80" is common for smaller closets and laundry rooms.
Q: Do bifold doors come with hardware?
A: Most wholesale bifold doors include basic hardware (track, pivot pin, alignment bracket). Upgraded hardware (soft-close, heavy-duty track) is available separately.
Q: What is the maximum width for a bifold door?
A: Standard bifold doors go up to 96" (6-panel). Wider openings require a custom configuration or multiple bifold units.
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