Two self-closing hinges are standard per door, though three are recommended for heavier doors.
Self-closing hinges allow doors to shut automatically using internal springs. The number required depends on door weight, height, and usage frequency. Standard interior doors typically need two hinges, while exterior or solid-core doors benefit from three for proper support and smooth closing action.
Standard self-closing hinge requirements by door type
| Door Type | Recommended Hinges | Weight Capacity |
|---|---|---|
| Interior hollow-core | 2 | Up to 40 lbs |
| Interior solid-core | 2-3 | 40-70 lbs |
| Exterior doors | 3 | 70+ lbs |
Factors affecting hinge quantity
- Door height over 80 inches requires additional hinges
- High-traffic areas benefit from extra support
- Fire-rated doors must meet specific hinge requirements
- Uneven floors may need adjustment hinges
Installation considerations
Self-closing hinges install like standard hinges but require spring tension adjustment. Position hinges at standard locations: 7 inches from top, 11 inches from bottom, and centered for third hinge. Test door swing and adjust tension to achieve proper closing speed without slamming.