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

Crosssection illustration showing the location of dimensions in the product data table.

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	0.047–0.142Hide extra rows
STANDARD STEEL	3/16-22	56	0.203	0.5	0.11	0.313	0.03	0.047
STANDARD STEEL	3/16-20	90	0.203	0.5	0.08	0.313	0.036	0.063
STANDARD STEEL	1/4-20	86	0.25	1	0.125	0.718	0.036	0.072
STANDARD STEEL	1/4-18	114	0.25	1	0.11	0.718	0.048	0.072
STANDARD STEEL	5/16-22	42	0.333	1	0.219	0.781	0.03	0.056
STANDARD STEEL	5/16-20	57	0.333	1	0.25	0.75	0.036	0.063
STANDARD STEEL	5/16-18	104	0.333	1	0.188	0.688	0.048	0.087
STANDARD STEEL	1/2-20	43	0.5	1.2	0.438	0.938	0.036	0.072
STANDARD STEEL	1/2-18	70	0.5	1.2	0.438	0.938	0.048	0.088
STANDARD STEEL	1/2-16	86	0.5	1.2	0.375	0.938	0.06	0.087
STANDARD STEEL	1/2-13	147	0.5	1.2	0.312	0.938	0.09	0.096
STANDARD STEEL	3/4-18	44	0.923	2	0.87	1.69	0.048	0.102
STANDARD STEEL	3/4-16	54	0.923	2	0.813	1.75	0.06	0.101
STANDARD STEEL	3/4-13	80	0.923	2	0.75	1.69	0.09	0.096
STANDARD STEEL	3/4-10 (13 Ga.)	120	0.923	2	0.75	1.63	0.09	0.144
STANDARD STEEL	3/4-9 (10 Ga.)	180	0.923	2	0.688	1.56	0.135	0.15
STANDARD STEEL	1-16	47	1	2.3	0.938	2	0.06	0.087
STANDARD STEEL	1-14	78	1	2.3	0.875	1.56	0.074	0.125
STANDARD STEEL	1-12	96	1	2.3	0.907	1.56	0.105	0.109
STANDARD STEEL	1-10	170	1	2.3	0.75	1.56	0.135	0.155
STANDARD STEEL	1-10H	200	1	2.3	0.75	1.56	0.135	0.18
STANDARD STEEL	1 1/2-16	40	1.33	3	1.25	2.63	0.06	0.108
STANDARD STEEL	1 1/2-14	33	1.41	3	1.32	2.63	0.075	0.075
STANDARD STEEL	1 1/2-13	60	1.33	3	1.89	2.5	0.09	0.105
STANDARD STEEL	1 1/2-12	74	1.33	3	1.11	2.38	0.105	0.109
STANDARD STEEL	1 1/2-10L (13 Ga.)	79	1.33	3	1.2	2.52	0.09	0.14
STANDARD STEEL	1 1/2-10	170	1.33	3	1	2.38	0.135	0.2
STANDARD STEEL	1 1/2-10H	200	1.33	3	0.83	2.38	0.135	0.24
STANDARD STEEL	1 1/2-9 (10 Ga.)	120	1.33	3	1.16	2.45	0.135	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	0.063–0.158Hide extra rows
FLATTENED STEEL	3/16-22F	72	0.218	0.5	0.094	0.343	0.027	0.063
FLATTENED STEEL	3/16-20F	86	0.218	0.5	0.094	0.343	0.032	0.063
FLATTENED STEEL	1/4-20F	88	0.25	1.05	0.084	0.715	0.03	0.079
FLATTENED STEEL	1/4-18F	108	0.25	1.05	0.075	0.715	0.04	0.08
FLATTENED STEEL	5/16-22F	39	0.333	1.02	0.203	0.813	0.027	0.075
FLATTENED STEEL	5/16-20F	54	0.333	1.03	0.203	0.813	0.032	0.075
FLATTENED STEEL	5/16-18F	95	0.333	1.03	0.172	0.813	0.04	0.099
FLATTENED STEEL	1/2-20F	40	0.5	1.25	0.375	1	0.029	0.079
FLATTENED STEEL	1/2-18F	66	0.5	1.25	0.312	1	0.039	0.097
FLATTENED STEEL	1/2-16F	82	0.5	1.25	0.312	1	0.056	0.096
FLATTENED STEEL	1/2-13F	140	0.5	1.25	0.312	1	0.07	0.107
FLATTENED STEEL	3/4-18F	40	0.923	2.10	0.69	1.75	0.042	0.112
FLATTENED STEEL	3/4-16F	51	0.923	2.10	0.75	1.75	0.048	0.111
FLATTENED STEEL	3/4-13F	75	0.923	2.10	0.688	1.78	0.07	0.106
FLATTENED STEEL	3/4-10F (13 Ga.)	114	0.923	2.10	0.637	1.755	0.07	0.16
FLATTENED STEEL	3/4-9F	171	0.923	2.12	0.56	1.69	0.12	0.165
FLATTENED STEEL	1-16F	44	1	2.30	0.813	2.1	0.05	0.098
FLATTENED STEEL	1-14F	63	1	2.30	0.813	2	0.07	0.125
FLATTENED STEEL	1-12F	98	1	2.30	0.813	2	0.085	0.156
FLATTENED STEEL	1-10F	165	1	2.30	0.75	1.9	0.11	0.16
FLATTENED STEEL	1 1/2-16F	38	1.33	3.20	1.06	2.75	0.048	0.119
FLATTENED STEEL	1 1/2-14F	46	1.33	3.20	1.06	2.75	0.061	0.116
FLATTENED STEEL	1 1/2-13F	57	1.33	3.20	1.06	2.75	0.07	0.116
FLATTENED STEEL	1 1/2-12F	66	1.41	3.20	1.3	2.63	0.085	0.116
FLATTENED STEEL	1 1/2-10F	165	1.33	3.20	0.9	2.56	0.11	0.188
FLATTENED STEEL	1 1/2-9F (10 Ga.)	114	1.33	3.20	1	2.56	0.11	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	0.06–0.162Hide extra rows
ALUMINUM STANDARD	3/16-.032	28	0.203	0.5	0.08	0.313	0.032	0.06
ALUMINUM STANDARD	5/16-.032	22	0.333	1	0.219	0.69	0.032	0.08
ALUMINUM STANDARD	5/16-.051	35	0.333	1	0.188	0.92	0.051	0.08
ALUMINUM STANDARD	1/2-.032	14	0.5	1.2	0.4	0.921	0.032	0.077
ALUMINUM STANDARD	1/2-.051	25	0.5	1.2	0.375	0.937	0.051	0.08
ALUMINUM STANDARD	1/2-.081	41	0.5	1.2	0.375	0.937	0.081	0.08
ALUMINUM STANDARD	3/4-.051	17	0.923	2	0.812	1.75	0.051	0.109
ALUMINUM STANDARD	3/4-.081L	27	0.923	2	0.75	1.68	0.081	0.11
ALUMINUM STANDARD	3/4-.081H	41	0.923	2	0.75	1.68	0.081	0.165
ALUMINUM STANDARD	3/4-.125	65	0.923	2	0.687	1.68	0.125	0.169
ALUMINUM STANDARD	1 1/2-.081	22	1.33	3	1.187	2.5	0.081	0.129
ALUMINUM STANDARD	1/1 2-.125	43	1.33	3	1.187	2.5	0.125	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	0.06–0.181Hide extra rows
ALUMINUM FLATTENED	3/16-.032F	20	0.218	0.5	0.094	0.343	0.028	0.06
ALUMINUM FLATTENED	5/16-.032F	20	0.333	1.02	0.188	0.813	0.03	0.082
ALUMINUM FLATTENED	5/16-.051F	34	0.333	1.02	0.156	0.78	0.045	0.082
ALUMINUM FLATTENED	1/2-.032F	13	0.5	1.25	0.271	1	0.029	0.1
ALUMINUM FLATTENED	1/2-.051F	24	0.5	1.27	0.312	1	0.04	0.091
ALUMINUM FLATTENED	1/2-.081F	39	0.5	1.27	0.312	1	0.06	0.091
ALUMINUM FLATTENED	3/4-.051F	16	0.923	2.13	0.75	1.81	0.04	0.122
ALUMINUM FLATTENED	3/4-.081LTF	25	0.923	2.13	0.687	1.75	0.07	0.134
ALUMINUM FLATTENED	3/4-.081HF	39	0.923	2.13	0.687	1.75	0.07	0.181
ALUMINUM FLATTENED	3/4-.125F	62	0.923	2.13	0.625	1.75	0.095	0.187
ALUMINUM FLATTENED	1 1/2-.081F	21	1.33	3.15	1.062	2.75	0.055	0.143
ALUMINUM FLATTENED	1 1/2-.125F	41	1.33	3.15	1	2.75	0.095	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	0.078–0.155Hide extra rows
STAINLESS STEEL STANDARD	5/16-20ST	86	0.333	1.0	0.219	0.75	0.037	0.078
STAINLESS STEEL STANDARD	5/16-18ST	114	0.333	1.0	0.189	0.69	0.05	0.078
STAINLESS STEEL STANDARD	1/2-20ST	50	0.5	1.2	0.437	0.94	0.037	0.08
STAINLESS STEEL STANDARD	1/2-18ST	67	0.5	1.2	0.437	0.94	0.05	0.08
STAINLESS STEEL STANDARD	1/2-16ST	84	0.5	1.2	0.437	0.94	0.062	0.08
STAINLESS STEEL STANDARD	3/4-20ST	35	0.923	2.0	0.85	1.66	0.037	0.125
STAINLESS STEEL STANDARD	3/4-18ST	48	0.923	2.0	0.85	1.70	0.05	0.105
STAINLESS STEEL STANDARD	3/4-16ST	60	0.923	2.0	0.812	1.75	0.062	0.106
STAINLESS STEEL STANDARD	3/4-14ST	73	0.923	2.0	0.814	1.63	0.078	0.106
STAINLESS STEEL STANDARD	1 1/2-16ST	41	1.33	3.0	1.25	2.75	0.062	0.106
STAINLESS STEEL STANDARD	1 1/2-9ST	137	1.33	3.0	1.13	2.50	0.14	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	0.069–0.165Hide extra rows
STAINLESS STEEL FLATTENED	5/16-20STF	82	0.333	1.0	0.18	0.79	0.03	0.069
STAINLESS STEEL FLATTENED	5/16-18STF	110	0.333	1.0	0.159	0.73	0.039	0.069
STAINLESS STEEL FLATTENED	1/2-20STF	48	0.5	1.26	0.312	1	0.033	0.091
STAINLESS STEEL FLATTENED	1/2-18STF	65	0.5	1.26	0.312	1	0.04	0.091
STAINLESS STEEL FLATTENED	1/2-16STF	81	0.5	1.26	0.312	1	0.05	0.091
STAINLESS STEEL FLATTENED	3/4-20STF	34	0.923	2.0	0.661	1.79	0.03	0.128
STAINLESS STEEL FLATTENED	3/4-18STF	46	0.923	2.1	0.671	1.78	0.039	0.127
STAINLESS STEEL FLATTENED	3/4-16STF	57	0.923	2.1	0.75	1.81	0.05	0.118
STAINLESS STEEL FLATTENED	1 1/2-16STF	39	1.33	3.2	1.062	2.75	0.05	0.119
STAINLESS STEEL FLATTENED	1 1/2-9STF	131	1.33	3.2	0.937	2.63	0.119	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
TYPE		24″ SPAN	36″ SPAN	48″ SPAN	TYPE	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