Knitted vs Woven vs Welded vs Expanded Mesh — What's the Difference?
·6 min read
Four common mesh types, how each is manufactured, and which application each is best suited to.
'Wire mesh' is a broad term. The four most common types—knitted, woven, welded, and expanded—are made differently and behave very differently in use.
Knitted mesh
- Construction: interlooped continuous wire (like knitting wool).
- Properties: flexible, stretchable, compressible, high surface area.
- Best for: demisters, filters, EMI gaskets, sound and vibration damping.
Woven mesh
- Construction: warp and weft wires woven at right angles.
- Properties: rigid, dimensionally stable, precise opening sizes.
- Best for: sieving, particle classification, architectural screens, sifting.
Welded mesh
- Construction: straight wires resistance-welded at every intersection.
- Properties: very rigid, strong, square or rectangular openings.
- Best for: fencing, reinforcement, cages, animal enclosures, security grilles.
Expanded metal mesh
- Construction: solid sheet slit and stretched to form diamond-shaped openings.
- Properties: one-piece (no welds or joins), strong, lightweight.
- Best for: walkways, platforms, machine guards, filters, ventilation grilles.
Choosing the right mesh
- Define the function: filtration, separation, structural, decorative, or protective.
- Choose the material based on environment (corrosion, temperature, chemistry).
- Specify opening size or wire diameter according to the duty.
- Confirm form factor: flat sheet, roll, pad, ring, or custom assembly.
Frequently asked questions
Which mesh is strongest?
Welded mesh is the most rigid and load-bearing. Expanded metal is also very strong because it is made from a single sheet with no joints.
Which mesh filters the finest particles?
Tightly woven mesh and compressed knitted mesh with fine wire can capture sub-micron particles.