Tools

Calculators & Designers

Unit converters, weight calculators, and live mesh/sheet designers with RFQ export - built for procurement, QC, and specification teams.

Perforated Sheet Designer

Live preview updates as you type. All common punch shapes and patterns.

How to use this tool

Weight is per m²: perforated sheet is priced by area, so this tool reports weight per square metre - multiply by your sheet size for the total.

Hole vs. pitch: hole size is the opening; pitch is centre-to-centre spacing. Open area is derived from both.

Open Area

40.3%

59.7% solid

Weight / m²

9.372 kg

Mild Steel

Live Preview

round · triangular · 10.00mm · pitch 15.00mm

Reference - Perforated Sheet Terminology

⌀ dpitch (p)centre to centreOPEN AREA %= hole Acell A× 100cell A = p² (sq) or p²·√3/2 (tri)