Standard Door Hinge Replace Guide - Door Hinge Sizes
Once you've identified your hinge corner radius, the next step is confirming the correct hinge size. Standard door hinges are square and sized in ½" increments. Most residential interior doors use a 3½" hinge and most entry doors use a 4" hinge.
Step 2 of 3
Hinge size chart by door thickness and width
If you are replacing existing hinges, simply measure the hinge leaf — height and width should be equal. For new installations use the chart below as a guide based on door thickness and width.
| Door Thickness | Door Width | Recommended Hinge Size |
|---|---|---|
| 1⅜" Door | Up to 32" | 3½" Hinge |
| 1⅜" Door | 32" to 36" | 4" Hinge |
| 1¾" Door | Up to 36" | 4½" Hinge |
| 1¾" Door | 36" to 48" | 5" Hinge |
| 1¾" Door | Over 48" | 6" Hinge |
| 2", 2¼", 2½" Door | Up to 42" | 5" Heavy Duty Commercial |
| 2", 2¼", 2½" Door | Over 42" | 6" Heavy Duty Commercial |
Note: This chart is a guide, not an absolute standard. Always verify against your existing hardware when replacing.
Hinge Placement
Standard hinge locations on a door
Top hinge: 5 inches down from the top of the door jamb.
Bottom hinge: 10 inches up from the finished floor.
Third hinge: Centered between the top and bottom hinges.
How Many Hinges Do You Need?
Use 1 hinge per every 30 inches of door height (or fraction thereof):
- Doors up to 60" — 2 hinges
- Doors 60" to 90" — 3 hinges
- Doors 90" to 120" — 4 hinges
Need help choosing?
Not sure what size hinges you need? Contact us with your door dimensions and we'll confirm the right size. Browse our full hinge collection or return to the Help Center.