Rod Size Calculator — Pipes, Rails & Handrails

Real handrails are typically 32-50mm diameter. At 1:48, this is 0.67-1.04mm. Use 0.8mm or 1.0mm brass wire. Brass is better than styrene for handrails as it holds its shape and can be soldered.

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.

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.

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.