What rod size for handrails at 1:48?

Real handrails are typically 32-50mm diameter. At 1:48, this is 0.67-1.04mm. Use 0.75mm or 1.0mm brass wire. Brass is better than styrene for handrails as it holds its shape and can be soldered.

Should I use styrene or brass rod?

Use styrene for structural elements, aerials and parts that will be painted. Use brass for handrails, grab rails and any parts that need to hold a precise shape or be very fine. Brass can be bent without breaking and soldered.

What about steel wire for rigging?

Steel wire (spring steel or music wire) is excellent for straight, rigid elements like radio aerials and stays. It is harder to bend than brass but holds shape better. Use 0.3-0.5mm for most scale applications.

How do I cut brass rod cleanly?

Use a razor saw or dedicated rod cutter for clean ends. Score-and-snap works for thicker rod. Sand the cut end with fine sandpaper on a flat surface. For very fine wire, use sharp flush cutters.

ModelCalcs

Rod Size Calculator — Pipes, Rails & Handrails

Calculate the right rod diameter at scale for pipes, rails, handrails and aerials.

Real-World Diameter (mm)

Diameter measurement

Scale

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Material

Select the material type

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.