Block Miter Cut Calculator

Stop wasting blocks on mitered corners. Block Miter Cut Calculator gives you the exact cut sizes for every concrete block series, at any angle, so every off-cut fits the next course at half bond — cutting your work in half and eliminating waste.

PERFECT CUTS, ZERO GUESSWORK

For each block series (100, 150, 200, 300), enter your wall angle (50°–85°) and instantly see the precise front and back cut dimensions for Stretcher Match, ¾ Match, and Stretcher ¾ Match. The app shows you exactly where to cut so the off-cut slots into the next course without trimming.

WALL LENGTH TABLE

A comprehensive table covers wall lengths from 1,000 mm to 25,000 mm in 10 mm increments. Every entry is color-coded:
• Blue — Stretcher Match and ¾ Match lengths (ideal)
• Green — Stretcher ¾ Match lengths
Tap any cell to see the full bond diagram for that wall length.

VISUAL BOND DIAGRAMS

See exactly how blocks lay out for any wall length: the starting miter cut, full stretchers, optional ¾ or ¼ blocks, and the ending miter cut — all drawn to scale. Supports both Angle-to-Angle and Square-to-Angle wall configurations.

CUT DIAGRAM

A clear block diagram shows front and back dimensions, the cut angle, and the off-cut size at a glance — take it straight to the saw.

SAVE & EXPORT

Save calculations to your local library with custom names. Export any result as a professional PDF containing the summary table, full wall length data, and bond diagram. Share via AirDrop, email, or print directly from the app.

WHO IS THIS FOR?

• Bricklayers and blocklayers working mitered corners
• Masonry contractors estimating materials and cuts
• Construction site managers planning block wall layouts
• DIY builders tackling angled garden walls or retaining walls
• Apprentices learning blockwork bond patterns

WHY BLOCK MITER CUT CALCULATOR?

Traditional miter cutting means trial and error — measure, cut, check, recut. This app replaces that cycle with precise mathematics. Every angle, every series, every wall length is pre-calculated. You choose the wall length, the app tells you the exact cuts.

The color-coded table lets you pick wall lengths where off-cuts match perfectly, so you can adjust your design by a few millimeters and save hours of cutting on site.

Built for the job site: fast, offline, no internet required. Open the app, set your angle and series, and start cutting.