Rod Size Calculator — Pipes, Rails & Handrails
Calculate the right rod diameter at scale for pipes, rails, handrails and aerials.
How We Calculate This
Divides real-world rod diameter by scale ratio, then matches to the nearest available rod size from major suppliers.
Formula
- Scale diameter = Real diameter / Scale ratio
- Nearest available = Closest standard rod size
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify quantities before purchasing materials.