Mild SteelBox Section 

Discounts: Make bigger savings the more you buy. Savings are applied automatically in your basket. Full discount details
Cutting serviceDelivery on all orders


Mild steel is sometimes referred to as carbon steel or plain steel. Typically, it is stiff and strong. Carbon steels do rust easily, but they can be easily painted or primed. They are cheap so they are the normal choice for most fabrications. Mild Steel can be easily cut to meet your requirements.  It is also easy to drill but please note that we do NOT currently provide a drilling service.

Mild Steel Box Section is also known as Mild Steel Hollow Section or ERW Tube, and can either be Square Box or Rectangular Box, depending on which you require. They are frequently used for general fabrication and construction. Box sections are stocked in either 1.5m lengths, 3m lengths or 6m lengths – all of which can be cut exactly to your measurements. 

All our mild steel box section dimensions are outside measurements.

Why not take advantage of our cutting service with up to 10 cuts per length FREE.

Quick Links

Mild Steel Box 2mm

20mm x 20mm x 2mm Mild Steel Box

25mm x 25mm x 2mm Mild Steel Box


Mild Steel Box 3mm

25mm x 25mm x 3mm Mild Steel Box

30mm x 30mm x 3mm Mild Steel Box 

50mm x 50mm x 3mm Mild Steel Box 

75mm x 75mm x 3mm Mild Steel Box

100mm x 100mm x 3mm Mild Steel Box