Builders grab steel flat bars for their versatility, shimming doors, building shelves, or reinforcing concrete. Melsteel stocks these flat, rectangular profiles in primed, galvanised, and black finishes, ready for your Melbourne project. This guide lists sizes, uses, and how Melsteel delivers exactly what you need.

Standard Steel Flat Bar Sizes at Melsteel

Flat bars come in Width x Thickness (e.g., 50x5mm), typically 6m lengths. Melsteel cuts to size and offers popular grades like mild steel.

Width x Thickness (mm) Lengths Available Top Uses
25×3 6m, cut-to-size Shims, brackets, light shelves
32×3 / 32×6 6m, cut-to-size Door tracks, edging
40×5 6m, cut-to-size Reinforcing, frames
50×3 / 50×5 / 50×6 / 50×10 6m, cut-to-size Concrete mesh supports, lintels
65×5 / 65×8 6m, cut-to-size Heavy shelves, trailer floors
75×6 / 75×8 / 75×10 6m, cut-to-size Walkways, steps
100×6 / 100×8 / 100×12 / 100×20 6m, cut-to-size Beams, machinery bases
150×12 / 150×20 6m, custom Industrial platforms

Galvanised options available for outdoor durability, view Melsteel flat bar stock.

Pick the Right Size for Your Build

You select 25x3mm for fine adjustments like door frames or light edging. Builders choose 50x6mm for concrete reinforcement where it anchors mesh securely. For shelves or walkways, 75x8mm or 100x10mm handles foot traffic without flexing.

Pro tip: Thicker bars (10mm+) resist bending; wider ones spread loads.

Finishes That Fit Your Job

Melsteel supplies all finishes, match yours to the environment.

Melsteel Makes Flat Bars Project-Ready

You order, we cut precisely, drill holes, and deliver via crane truck (delivery info). Fabricate custom brackets or weld assemblies in-house (fabrication services). Check price list or upload drawings at Contact. Call 03 8794 3100 for advice on sizes or spans.

FAQs: Steel Flat Bar Essentials

1. Most common size?
50x5mm and 50x6mm, versatile for slabs and frames.

2. Cut to length?
Yes, 50mm increments from stock 6m bars (processing).

3. Galvanised for outdoors?
Absolutely, lasts decades without rust (outdoor steel).

4. Compare to angles?
Flats suit flat loads; angles for corners (angles vs SHS).

Where to Next

– RHS Sizes Guide

– SHS Benefits

– Steel Ordering Mistakes