Framing Angle Calculator
Calculate precise miter and bevel angles for picture frames, door trim, crown molding, and polygon builds. Fast inputs, clean outputs, fewer test cuts.
- Pick your project type (frame, crown, polygon).
- Enter key dimensions or angles.
- Set saw reference (flat vs nested if available).
- Cut one test corner, then batch cut with confidence.
Framing Angle Calculator
Calculate precise miter and bevel angles for frames, trim, and moldings.
Bevel Angle: 45.00°
Tip: Miter angle = half the corner angle. For polygons, use 180 ÷ number of sides.
How to use
- Enter your project geometry (corner angle, spring angle, polygon sides, etc.).
- Read the miter and bevel settings generated.
- Lock your saw settings and cut a quick test joint.
- Batch cut all matching pieces once the joint closes perfectly.
Pro tips
- • For frames: clean miters come from identical lengths, not just angles.
- • For crown: keep the spring angle consistent and mark “ceiling” and “wall” faces.
- • If joints open at the inside corner, verify bevel direction and stock orientation.
FAQs
Why does the joint look perfect dry but gaps after glue-up?
Clamping pressure can shift pieces, and end-grain glue can act like a lubricant. Use cauls, check for fence/stop consistency, and pre-fit with the same clamp strategy.
My saw scale is accurate, but corners still don’t close. What now?
Calibrate for real-world drift: check blade-to-fence squareness, detent accuracy, and whether your stock is truly straight. One tiny out-of-square cut multiplies across a polygon.
What’s the quickest way to validate a polygon build?
Cut two pieces and tape-hinge them into a “V”, then compare the included angle to your target. If it’s off, tweak miter slightly before committing to the full set.