Welded Wire Mesh Weight & Size Chart – 2026 Reference

Update on 2026-07-07

Welded Wire Mesh Gauge Chart

If you're comparing supplier quotes, verifying a delivery, or converting between gauge and mm before placing an order, this guide is built for you. It's written for procurement staff and traders who need to price mesh by weight, contractors and site engineers checking that delivered material matches the spec on paper, distributors building comparison sheets for customers, and small fabrication shops converting between gauge systems. By the end, you'll be able to look up or calculate the exact weight of any welded wire mesh spec yourself, convert confidently between wire gauge, mm, and inches, and — most importantly — check in under five minutes whether what showed up on site actually matches what you paid for.

A practical lookup guide for buyers, contractors, and fabricators — covering weight (kg/m²), mesh sizes, and gauge-to-mm conversion, with the formulas behind every number so you can verify or recalculate for your own specification.

1. MS Welded Wire Mesh Weight Chart (kg/m²)

The table below gives the theoretical weight per square metre of mild steel (MS) welded wire mesh, based on wire diameter and square mesh opening (clear aperture between wires). This is the number most buyers are actually looking for when they search "weight chart" — it's what you multiply by area to get total order weight, and what you check an invoice against.

Note: Figures assume mild steel density of 7,850 kg/m³ and standard square (equal-spacing) mesh. Actual delivered weight can run ±3–5% from theoretical due to mill tolerance on wire diameter — see Section 6 for how to sanity-check this.

Wire Dia. (mm)	25×25 mm	50×50 mm	75×75 mm	100×100 mm	150×150 mm	200×200 mm
2.0 mm	1.83	0.95	0.64	0.48	0.32	0.24
2.5 mm	2.81	1.47	1.00	0.75	0.51	0.38
3.0 mm	3.97	2.10	1.42	1.08	0.73	0.55
4.0 mm	6.81	3.66	2.50	1.90	1.28	0.97
5.0 mm	10.29	5.61	3.86	2.94	1.99	1.51
6.0 mm	14.34	7.94	5.49	4.19	2.85	2.16
8.0 mm	23.94	13.62	9.52	7.32	5.00	3.80
10.0 mm	35.27	20.58	14.52	11.22	7.72	5.88

(All values in kg/m², rounded to 2 decimal places.)

How to read this: find your wire diameter in the left column, follow across to your mesh opening size. Example: 6 mm wire, 150×150 mm opening = 2.85 kg/m² — a very common spec for MS welded mesh used in plaster reinforcement and light fencing.

Don't see your exact combination? Use the formula in Section 2 to calculate it for any diameter/opening — it takes 10 seconds and removes any guesswork.

2. How the Weight Is Calculated

Most weight charts online just give you a table with no explanation, which means you can't verify a number that looks off, and you can't calculate a size that isn't listed. Here's the actual formula, derived from first principles, so you're not dependent on any single chart.

Step 1: Weight of one metre of wire

Steel wire weight per linear metre depends only on cross-sectional area and density:

Wire weight (kg/m) = π/4 × d² × ρ

Where d = wire diameter in metres, ρ = steel density (7,850 kg/m³).

Converting to practical units (d in mm), this simplifies to the widely-used rule of thumb:

Wire weight (kg/m) ≈ d² ÷ 162      (d in mm)

Step 2: Wires per metre in a mesh panel

For a square mesh with opening (aperture) a (mm) and wire diameter d (mm), the pitch — centre-to-centre spacing — is:

Pitch (p) = a + d

Number of wires running across one metre, in each direction:

Wires/m = 1000 ÷ p

Step 3: Combine into weight per m²

A 1 m² panel contains wires running in both directions, so total wire length per m² is double the single-direction count:

Mesh weight (kg/m²) = (2 × 1000 ÷ p) × (d² ÷ 162)
                     = 12.35 × d² ÷ (a + d)

Worked Example

Specification: 5 mm wire, 100×100 mm mesh.

Pitch = 100 + 5 = 105 mm
Weight = 12.35 × 5² ÷ 105
       = 12.35 × 25 ÷ 105
       = 308.75 ÷ 105
       = 2.94 kg/m²

This matches the chart in Section 1 exactly — which is how you can confirm any quoted chart (yours or a supplier's) is using standard theoretical weight and not padded numbers.

Why this matters commercially: some suppliers quote mesh by "nominal" gauge but deliver wire at the thin end of the tolerance band. Since weight scales with the square of diameter, a wire that's 5% thinner than nominal delivers about 10% less steel than the invoice implies. Always convert gauge/diameter claims to actual kg/m² using this formula before accepting a shipment on trust.

3. Weight per Roll and per Sheet

Buyers rarely purchase by the square metre alone — mesh is sold in rolls (for lighter gauges, plaster/fencing mesh) or flat sheets/panels (for concrete reinforcement mesh). Here's how to convert.

Formula

Weight per roll (kg) = Weight (kg/m²) × Roll width (m) × Roll length (m)
Weight per sheet (kg) = Weight (kg/m²) × Sheet width (m) × Sheet length (m)

Common Roll Weights (assuming 30 m roll length)

Wire Dia.	Mesh	kg/m²	Roll 0.9 m wide	Roll 1.2 m wide	Roll 1.5 m wide	Roll 1.8 m wide
3 mm	50×50	2.10	56.7 kg	75.6 kg	94.5 kg	113.4 kg
4 mm	100×100	1.90	51.3 kg	68.4 kg	85.5 kg	102.6 kg
4 mm	50×50	3.66	98.8 kg	131.8 kg	164.7 kg	197.6 kg
6 mm	100×100	4.19	113.1 kg	150.8 kg	188.6 kg	226.3 kg
6 mm	150×150	2.85	76.9 kg	102.6 kg	128.3 kg	153.9 kg

Common Sheet Weights (standard 2.4 m × 1.2 m rebar-mesh panel)

Wire Dia.	Mesh	kg/m²	Weight per sheet (2.4 m × 1.2 m = 2.88 m²)
6 mm	150×150	2.85	8.21 kg
8 mm	150×150	5.00	14.40 kg
8 mm	200×200	3.80	10.94 kg
10 mm	150×150	7.72	22.23 kg
10 mm	200×200	5.88	16.93 kg

Always confirm actual roll length and sheet dimensions with your supplier before ordering. Roll length is sometimes cut shorter than nominal (e.g., 28 m instead of 30 m) to reduce delivered tonnage while keeping the per-roll price the same — the weight chart above is only useful if the physical dimensions match what's stated.

4. Welded Wire Mesh Size Chart by Application

"Size" in welded wire mesh actually refers to two different things depending on context — mesh opening (aperture) and overall panel/roll dimensions. Here's how the two typically pair up by end-use:

Application	Typical Wire Dia.	Typical Mesh Opening	Typical Panel/Roll Size	Why
Plaster / lath reinforcement	0.9–1.6 mm	12×12 – 25×25 mm	Rolls, 0.9–1.2 m wide	Fine mesh keys into plaster/render without showing through
Poultry / bird netting	0.9–1.4 mm	12×12 – 25×25 mm	Rolls, 0.9–1.8 m wide	Small openings needed to contain chicks; light gauge keeps cost low
General-purpose fencing	2.0–3.0 mm	25×25 – 50×50 mm	Rolls, 0.9–1.8 m wide	Balance of visibility, strength, and cost
Security / anti-intrusion fencing	3.0–4.0 mm	50×50 – 75×75 mm	Rolls or panels	Thicker wire resists cutting
Concrete slab reinforcement (light duty)	4–6 mm	100×100 – 150×150 mm	Flat sheets, 2.4×1.2 m or 6×2.4 m	Matches typical rebar spacing codes for residential slabs
Concrete reinforcement (structural / road)	6–12 mm	100×100 – 200×200 mm	Flat sheets, 6×2.4 m	Matches structural design spacing (per IS 456 / BS 8110)
Filter / screening mesh	0.5–2.0 mm	3×3 – 12×12 mm	Rolls, narrow widths	Fine aperture for separating particles/gravel grading
Gabion baskets / retaining structures	2.7–4.0 mm	60×80 – 100×120 mm (often hexagonal/rectangular)	Custom panel sizes	Larger, heavier-gauge openings for stone-fill baskets

Use this table to sanity-check a quote: if a supplier offers "4 mm wire at 25×25 mm mesh" for a concrete slab job, that's an unusually dense (and expensive) spec for that application — worth asking why, since it's roughly 3.5× heavier per m² than the 100×100 mm spec typically used for the same purpose.

5. Wire Gauge (BWG) to mm/in Conversion Chart

Many mills and traders — particularly across South Asia and the Middle East — still quote wire diameter by gauge number rather than mm, most commonly BWG (Birmingham Wire Gauge). Since gauge numbering runs in reverse (a higher gauge number means a thinner wire), this is one of the most common sources of ordering mistakes.

BWG No.	Diameter (mm)	Diameter (inch)	Typical Use
4	5.89	0.232″	Heavy security fencing, gabions
6	4.98	0.196″	Structural mesh, heavy chain-link
8	4.19	0.165″	Concrete reinforcement mesh
9	3.76	0.148″	Concrete reinforcement mesh
10	3.40	0.134″	General fencing, chain-link
11	3.06	0.120″	General fencing
12	2.77	0.109″	Chain-link, light fencing
13	2.41	0.095″	Light fencing
14	2.11	0.083″	Light fencing, poultry mesh
16	1.65	0.065″	Poultry netting
18	1.24	0.049″	Fine poultry / insect mesh
20	0.89	0.035″	Filter/insect screen
22	0.71	0.028″	Fine filter mesh

Important caveat: BWG, SWG (Standard Wire Gauge), and AWG (American Wire Gauge) are three different systems and are not interchangeable — the same gauge number means a different diameter in each. The table above is BWG, which is the system most commonly used for wire mesh in Indian/Pakistani/Middle Eastern trade. Historical BWG tables also vary slightly by publishing source in the third decimal place. For contractual or engineering purposes, always confirm the exact diameter in mm against the relevant standard (IS 280 for MS wire, ASTM A82/A853, or BS 1052) rather than relying on gauge number alone — ask your supplier to state wire diameter in mm on the invoice, not just "8 gauge," to avoid disputes.

6. How to Verify Mesh Weight on Delivery

If you're procuring mesh at scale, this is the section that actually protects your money. Under-gauge wire is one of the most common (and hardest to spot visually) ways mesh gets short-supplied.

A 5-minute field check:

Measure actual wire diameter with vernier calipers at 3–4 random points on the panel/roll — don't trust the label alone.
Measure actual mesh opening (centre-to-centre pitch, not just the visual gap) at a few points.
Plug both numbers into the formula from Section 2 (12.35 × d² ÷ (a+d)) and compare to what the invoice claims.
Weigh a sample — if you can weigh even a 1 m² cut sample or a full roll on a platform scale, compare directly against your calculated figure.
Check for tolerance, not exact match. A genuine ±3–5% variance is normal manufacturing tolerance. A consistent 10%+ shortfall across multiple measurements indicates under-gauge wire, not random variance.

Keeping a laminated copy of the Section 1 chart (or this formula) with your site receiving team is a low-cost way to catch shortweight deliveries before the supplier invoice is paid.

7. Standards Referenced

For specification and procurement documentation, these are the relevant standards this chart aligns with:

IS 4948 — Specification for welded steel wire fabric for general use
IS 1566 — Hard-drawn steel wire fabric for concrete reinforcement
IS 280 — Mild steel wire for general engineering purposes
ASTM A185 / A1064 — Standard specification for steel welded wire reinforcement, plain, for concrete
ASTM A82 / A1064 — Standard specification for steel wire, plain, for concrete reinforcement
BS 4483 — Steel fabric for the reinforcement of concrete

Theoretical weight formulas in this guide are density-based (7,850 kg/m³) and consistent with the calculation methods referenced in the above standards; always confirm the specific clause and tolerance band relevant to your project or export market, as regional adoptions of these standards can carry minor variations.

8. FAQ

Q: Why does my delivered mesh weigh less than the chart says it should?
A theoretical chart assumes exact nominal diameter. Real wire has a manufacturing tolerance (typically ±2.5–5% on diameter, per IS/ASTM). Since weight scales with diameter squared, small diameter differences produce a noticeably larger weight difference — this is normal, but should stay within single digits as a percentage, not double digits.

Q: Is "weld mesh" the same as "welded wire mesh"?
Yes — "weld mesh," "welded mesh," and "welded wire mesh" are used interchangeably in the trade to describe wire fabric where the intersections are electrically resistance-welded (as opposed to woven or twisted, which is a different, generally weaker product for structural use).

Q: What does "MS" mean in "MS welded wire mesh"?
MS stands for Mild Steel (low-carbon steel), as opposed to galvanized, stainless, or PVC-coated wire mesh. MS mesh is the base/uncoated product and is typically the cheapest per kg, but is not corrosion-resistant unless coated or painted after installation.

Q: How do I convert a weight chart in kg/m² to price per kg?
Multiply the area of your job (m²) by the kg/m² figure for your chosen spec, then multiply by your supplier's quoted rate per kg. This lets you compare quotes from different suppliers fairly, even if they quote in different units (per roll, per sheet, per kg) — always normalize back to kg/m² first.

Q: Does a bigger mesh opening always mean lighter weight for the same wire diameter?
Yes — for a fixed wire diameter, weight per m² decreases as mesh opening increases, because fewer wires are needed to cover the same area (see the formula in Section 2: opening size a is in the denominator).

Have a specification that isn't listed above? Use the formula in Section 2 to calculate it directly, or get in touch with our team for a custom quote — we can also supply mill test certificates confirming actual (not just nominal) wire diameter for any order.

2 Comments

JOJO

I\'ve been in construction procurement for years and still bookmarked this. The weight estimates per gauge are something I rarely see in one place. No fluff, just useful data.

Lily

Super helpful guide! I never understood why smaller gauge numbers meant thicker wire — now it finally makes sense. The full chart from gauge 2 all the way to 26 with diameters and applications is exactly what I needed for my project.