#4 Mesh – 5.45mm Aperture – 0.9mm Wire Diameter – Mild Steel/Plain Steel – Woven Wire Mesh

#4 Mesh Strong Mild Steel Wire Mesh

Our #4 woven wire mesh made from plain mild steel is a heavy-duty solution designed for structural and industrial tasks that require maximum strength and openness. With a large 5.45mm aperture and thick 0.9mm wire, this mesh offers a high 74% open area, making it perfect for coarse screening, guarding, and support applications where both visibility and airflow are important. Despite its openness, the strong wire diameter ensures excellent rigidity and load resistance, making it a dependable material in challenging environments such as factories, workshops, and construction sites.

At 1.62 kg per square metre, this mesh combines manageable weight with real toughness. It’s ideal for use in protective barriers, machine guards, ventilation grilles, drying racks, and sieving frames. The large aperture allows bulk materials, air, and debris to pass through easily, making it suitable for both functional and industrial-grade filtration or separation systems. Because it is constructed from mild steel, it offers a cost-effective alternative to stainless steel where corrosion resistance is not required or where the mesh will be painted or galvanised after installation.

This mesh is commonly chosen for enclosures, fencing panels, and reinforcing layers in construction builds. It is also popular for animal cages, farming equipment, and workshop fixtures where robustness is key. Fabricators favour this mesh for its ease of cutting and welding, and it holds its shape well once fixed in place. Its uncoated steel finish gives it a natural industrial appearance, which can be left raw for indoor use or coated for durability in outdoor or exposed settings.

Whether you’re working on an agricultural screen, a machine safety panel, or a custom project requiring a strong and open wire mesh, this #4 mild steel option is a practical and economical choice. Its combination of strength, openness, and versatility makes it one of the go-to solutions for heavy-duty mesh requirements.

Specification

• Aperture – 5.45mm
• Wire Diameter – 0.9mm
• Open Area – 74%
• Mesh No. – #4
• Weight – 1.62 kg/m2

Wire mesh materials are also available in brass, copper, galvanised steel and blue PVC.

Why Choose Speciality Metals

• FREE UK delivery on all orders
• Order dispatch within 24 hours of order
• Located in Warrington, UK which is the UK home of mesh and metals
• Our experienced staff are experts in the mesh market and care personally about your customer experience