Expanded Metal


EXPANDED MESH TERMINOLOGY AND TYPES

 

A. WIDTH OF MESH (S.W.D.)
B. LENGTH OF MESH (L.W.D.)
C. WIDTH OF OPENING
D. LENGTH OF OPENING
E. STRAND THICKNESS
F. STRAND WIDTH

TERMINOLOGY

S.W.D. Short Way Diamond​
L.W.D ​Long Way Diamond​
Bond Area where strands intersect​
​Strand Width Surface area of metal strips forming diamond​​
Strand Thickness Gauge of material being expanded
​Flattening Flattened short dimension diamond parallel to rolls​​
Cross Flattening* Flattened long way diamond parallel to rolls
​Deburring Mesh passed through wire brushes to remove burns​​
Levelling Mesh roller levelled to reduce curving​​

* Cross flattening results in distortion of the diamond in expanded mesh.

CATEGORY STYLE NO. (Use this number for ordering) WEIGHT PER 100 SQ. FT. CENTRE TO CENTRE OF BRIDGES (A - SWD) CENTRE TO CENTRE OF BRIDGES (B - LWD) SIZE OF OPENINGS (C - SWD) SIZE OF OPENINGS (D - LWD) STRAND (E - THICK.) STRAND (F - WIDTH)
STANDARD STEEL– 3/16-22–1 1/2-9 (10 Ga.) 56–120 0.203–1.33 0.5–3 0.11–1.16 0.313–2.45 0.03–0.135 0.047–0.142
FLATTENED STEEL– 3/16-22F–1 1/2-9F (10 Ga.) 72–114 0.218–1.33 0.5–3.20 0.094–1 0.343–2.56 0.027–0.11 0.063–0.158
ALUMINUM STANDARD– 3/16-.032–1/1 2-.125 28–43 0.203–1.33 0.5–3 0.08–1.187 0.313–2.5 0.032–0.125 0.06–0.162
ALUMINUM FLATTENED– 3/16-.032F–1 1/2-.125F 20–41 0.218–1.33 0.5–3.15 0.094–1 0.343–2.75 0.028–0.095 0.06–0.181
STAINLESS STEEL STANDARD– 5/16-20ST–1 1/2-9ST 86–137 0.333–1.33 1.0–3.0 0.219–1.13 0.75–2.50 0.037–0.14 0.078–0.155
STAINLESS STEEL FLATTENED– 5/16-20STF–1 1/2-9STF 82–131 0.333–1.33 1.0–3.2 0.18–0.937 0.79–2.63 0.03–0.119 0.069–0.165

ALL WEIGHTS AND DIMENSIONS SHOWN ABOVE ARE APPROXIMATE

Special size sheets can be produced to order.

EXPANDED STEEL GRATING

STYLE WEIGHT PER SQUARE FOOT STANDARD SHEET SIZE FEET - SWD DIAMOND SIZE CENTRE TO CENTRE INCHES - LWD ACTUAL SIZE OF OPENING - SWD STRAND SIZE INCHES - LWD OVERALL THICKNESS IN INCHES - SWD LWD WIDTH THICK
3 3 lbs 8 4 1.33 5.33 0.94 3.44 0.264 0.183
4 4 lbs 8 4 1.33 5.33 0.94 3.44 0.3 0.215
5 5 lbs 8 4 1.33 5.33 0.813 3.38 0.331 0.25
6.25 6.25 lbs 8 4 1.41 5.33 0.813 3.38 0.35 0.312

Some of our service centres also carry the following in stock:

– 3′ SWD x 8′ and 10′ LWD; 8′ and 10′ SWD x 3′ LWD
– 4′ SWD x 8′ and 10′ LWD; 8′ and 10′ SWD x 4′ LWD
Special sizes available on request.

Expanded Mesh Grating also produced in Aluminum and Stainless.

DEFLECTION DATA

TYPE CONCENTRATED TYPE UNIFORM
24″ SPAN 36″ SPAN 48″ SPAN 24″ SPAN 36″ SPAN 48″ SPAN
C 275# 165# 75# U 275# 100#
3# D .250″ .250″ .250″ D .250″ .220″
C 440# 220# 100# U 350# 150# 50#
4# D .250″ .250″ .250″ D .240″ .245″ .250″
C 540# 310# 140# U 600# 175# 100#
5# D .245″ .250″ .250″ D .240″ .240″ .250″
C 800# 300# 150# U 800# 300# 115#
6.25# D .220″ .240″ .240″ D .220″ .250″ .240″

C= Concentrated load per square foot
U= Uniform load per square foot
D= Deflection in inches
Material meets U.S. Federal specification RR-G-661b for deflection requirements and all requirements of U.S. Military specifications MIL-M-17194-C and MIL-6-18015

Locations offering this product: