Yes, a piano hinge can be cut to size—and it’s commonly done during installation. The key is using the right tools and technique so the hinge remains straight, functional, and safe.

What Is a Piano Hinge (Quick Context)

A piano hinge (continuous hinge) runs the full length of a door, lid, or panel. Because projects vary in size, hinges are often supplied longer than needed and trimmed on site.

Tools You Can Use to Cut a Piano Hinge

Choose based on hinge material and thickness:

• Hacksaw – Best for steel or Stainless Steel Hinges

• Tin snips – Suitable for thin brass or aluminum hinges

• Angle grinder with cut-off wheel – Fast for thick or hardened steel

• Metal-cutting blade on a miter saw – Clean, precise cuts (use caution)

Step-by-Step: How to Cut a Piano Hinge Cleanly

1. Measure and mark

• Measure the required length precisely

• Mark the cut line with a marker or scribe

• Clamp it firmly to a workbench

• Keep the hinge straight to avoid twisting

• Cut between hinge knuckles if possible

• Saw slowly to prevent burrs and heat buildup

• Use a metal file or sandpaper

• Smooth sharp edges for safety and proper fit

• Ensure the hinge pin is not bent or loose

• If needed, lightly peen or crimp the end to secure it

Important Tips (Avoid Common Mistakes)

• Do not crush the knuckles when clamping

• Avoid cutting through a knuckle unless unavoidable

• Wear eye protection—metal shards are common

• Test-fit before final installation

Material-Specific Notes

When You Should NOT Cut a Piano Hinge

• Fire-rated or certified hinges (may void certification)

• Pre-drilled precision applications where hole spacing must remain exact

• Load-critical installations without verifying post-cut strength

In these cases, order the hinge pre-cut to length from the supplier.

Summary

✔ Yes, piano hinges can be cut
✔ Use the right tool for the hinge material
✔ Cut cleanly, deburr edges, and protect the hinge pin
✔ Avoid cutting certified or load-critical hinges without approval