Welded Stainless Steel Wire Mesh

Last reviewed on October 3, 2026

Welded wire mesh is fabricated by electrically welding intersecting wires at every crossing to form a rigid grid. This manufacturing method produces a strong, uniform mesh with square or rectangular openings that remain stable under load. Stainless steel welded mesh offers superior corrosion resistance compared to galvanized steel and is available as flat panels or flexible rolls.

Characteristics

• Rigid construction: Every crossing is resistance-welded, so the wires cannot shift and the mesh holds its shape when cut.
• Uniform spacing: Wires are placed by machine at a fixed pitch, giving consistent openings for screening, guarding and animal containment.
• 304 & 316 grades: 304 for general indoor and inland outdoor use; 316 (or 316L) for coastal, pool, de-icing-salt and chemical exposure. See 304 vs 316 mesh.
• Panels or rolls: Lighter wires (roughly 16 gauge and thinner) are commonly sold in rolls; heavier wires come as flat panels.

How Welded Mesh Sizes Are Specified

Welded mesh is described by wire spacing and wire diameter. In most catalogues "1/2″ × 1/2″" means the wires are 1/2″ apart centre to centre, so the clear opening is smaller by one wire diameter:

clear opening = spacing − wire diameter

Some suppliers — particularly for heavier metric mesh — quote the clear opening instead (for example "opening 50 × 50 mm, wire 3 mm", which means a pitch of 53 mm). Before ordering, ask which convention the quote uses; for animal enclosures and screening, the clear opening is the number that matters.

Wire is often given as a gauge. For steel wire in North America this is the steel wire gauge (Washburn & Moen), not AWG — 19 gauge is 0.041″ and 14 gauge is 0.080″. Our wire gauge chart lists the conversions.

Typical Specifications

Common spacing and wire combinations, with the clear opening calculated from the spacing. Availability in stainless steel varies; many other combinations are made to order.

Common Applications

• Fencing & barriers: garden, pool-surround and site fencing panels where galvanised mesh would corrode or stain.
• Animal enclosures: aviaries, hutches and reptile enclosures — see the pet enclosure guide for opening sizes by species.
• Machine guards & partitions: rigid infill panels that keep hands away from moving parts while allowing visibility and airflow.
• Gabion-style baskets & planters: stone-filled walls and landscape features in exposed or coastal sites.
• Reinforcement in special cases: stainless reinforcement is specified in some concrete exposed to chlorides, but structural reinforcement must be designed by an engineer to the relevant code; decorative welded mesh is not a drop-in substitute for rebar.

Welded vs Woven Mesh

Welded mesh is stiffer and does not fray when cut, which suits panels, cages and guards. Woven mesh is more flexible, can be made far finer and has more precise apertures, which suits filtration, sieving and insect screens. For openings below about 1/4″, woven mesh is usually the practical choice. Compare them in the woven wire mesh guide.

Buying Checklist

• Grade (304/316) and whether a mill certificate is available.
• Spacing and whether it is centre-to-centre or clear opening.
• Wire diameter in inches or mm, not only a gauge number.
• Panel size or roll width × length, and whether edges have trimmed or protruding wire ends.
• Finish: mill finish, pickled/passivated or electropolished (electropolishing improves cleanability and appearance after welding).

Example Specifications

Example welded mesh specifications you can use when requesting quotes (not endorsements of a particular seller):

For an overview of woven mesh and other varieties, browse our woven mesh guide or explore the Understanding Stainless Steel Mesh article.