How to Cut Miters Beyond Your Saw’s Limits

Most miter saws top out at about 60° on one side and 50° on the other. That covers nearly every cut—until a layout calls for something outside that range.

On a recent project, we needed a 65° miter, which was beyond the saw’s adjustment capacity. Instead of switching tools or risking a freehand cut on a critical piece, we used a simple auxiliary backstop to extend the saw’s capability.

The solution for this miter

We cut a 45° auxiliary backstop and placed it tight against the factory fence of the miter saw. This effectively “adds” angle to the saw. Any miter angle you set on the saw is combined with the 45° backstop.

For safety and repeatability, we clamped the auxiliary backstop securely to the saw, and the workpiece itself was also clamped before making the cut.

On a recent project, we needed a 65° miter, which was beyond the saw’s adjustment capacity, so we had to come up with a smarter setup.How we did it

Here’s the exact method we came up with to do this:

1. Cut a clean 45° auxiliary backstop.
2. Clamp the backstop firmly against the saw’s fence.
3. Clamp the workpiece in place.
4. Rotate the miter saw to the additional angle needed.

For this particular job, this is what we did:

• Saw set to 20°
• 20° + 45° backstop = 65° total cut

Why this matters

These extreme miters aren’t everyday cuts, but when you’re working with borders, custom trim or challenging layouts, this method makes the job faster, safer and more precise without the risk of making a bad cut. It allows you to push past the limitations of the saw without sacrificing accuracy—or control.

Sometimes the best tricks aren’t about spending money on new tools—they’re just smarter setups and solid fundamentals with the quality tools you already have.

Watch a video of Matt Garcia explaining this process: