Light-duty electroforged grating

Our light-duty electroforged grating is a robust and durable product manufactured with state-of-the-art technology and high precision. It is designed to allow the passage of liquids, air, and light, making it ideal for environments that require drainage and ventilation. Available in sizes up to 3.9 × 29.5 ft, these gratings are ideal for industrial flooring, offshore platforms, mining, and more, thanks to their strength and durability. We offer various sizes, thicknesses, surfaces, and high-quality finishes in compliance with the ANSI NAAMM MBG-531-17 carbon steel standard.

Tech Sheet EN

Models EN

The light-duty electroforged grating is designed to withstand lighter loads compared to gratings intended for heavy traffic. These gratings are typically used in areas with lower vehicular circulation, such as pedestrian zones, corridors, residential or commercial areas with light vehicle traffic.

Typical applications of light-duty electroforged gratings

Light-duty electroforged gratings are commonly used in: sidewalks and pedestrian walkways, commercial areas with mainly pedestrian or cart traffic, platforms and building access áreas, corridors and traffic zones in industrial facilities or warehouses, residential áreas, recreational areas and parks, sports facilities, landscaping applications such as gardens or outdoor spaces, areas with light vehicles such as bicycles or motorcycles.

Benefits of light-duty electroforged gratings

The light-duty electroforged grating provides numerous advantages thanks to its design for lighter loads, including: lightweight structure, allowing easy handling, installation, and maintenance, pedestrian safety, with a secure, anti-slip surface, versatility, suitable for a wide range of environments, easy installation and low maintenance, as it endures less wear, aesthetic and design flexibility, adaptable to specific projects, cost-efficiency, corrosion resistance, particularly with special surface finishes, compliance with international quality standards.

We manufacture safe and durable electroforged gratings with a strong, high-resistance structure made using cutting-edge technology. Our process ensures a perfect fusion between the bearing bars and the cross bars through controlled pressure and electric arcs during electroforging. Panels are produced in standard sizes of 2×20,2×24, 3×20 and 3 x 24 ft, with the capacity to manufacture larger panels up to 3.9 × 29.5 ft thanks to our machine’s bed size. Our light-duty electroforged gratings are engineered to allow the passage of liquids, air, and light, making them ideal for use in environments requiring drainage or ventilation. Common applications include industrial flooring, offshore platforms, industrial maintenance, mining, livestock facilities, boilers, walkways, and more—valued for their strength and durability.

They can be manufactured in different dimensions according to customer requirements, with two surface options: Smooth surface: allows easier cleaning, greater walking comfort, prevents residue buildup, reduces footwear wear, provides an elegant and minimalist aesthetic, helps prevent injuries, and adapts to diverse uses. Serrated surface: offers higher slip resistance, increased safety, improved drainage, greater wear resistance, versatility, and prevents residue accumulation.

Finishes for light-duty electroforged gratings

Available in three different finishes: bare finish, provides a minimalist, authentic appearance with low maintenance; the painted finish, which offers customized aesthetics and additional corrosion protection and the galvanized finish, that provides superior corrosion protection, increased durability, and minimal maintenance. All gratings are manufactured in accordance with ANSI NAAMM MBG-531-17, in carbon steel.

Light traffic electroforged grating
Allowable Loads Table
Bearing bar			Span in inches
			24	30	36	42	48	54
3/4 X 1/8	42	U	355	227	158	116	89	70	Note: The carrying capacity of a piece of grating subjected to a
-4		Du	0.099	0.155	0.223	0.304	0.397	0.503	concentrated load over only a portion of its width is determined by the
		C	355	284	237	203	178	158	stiffness of both the bearing bars and the cross bars, and therefore differs with the type of grating used. To determine the carrying capacity of gratings to such loadings, the manufacturer´s engineering should be consulted
		Dc	0.079	0.124	0.179	0.243	0.318	0.402
3/4 X 3/16	46	U	533	341	237	174	133	105
-6		Du	0.099	0.155	0.223	0.304	0.397	0.503
		C	533	426	355	305	266	237
		Dc	0.079	0.124	0.179	0.243	0.318	0.402	60	66	72	Conversion Factors:
1 X 1/8	51	U	632	404	281	206	158	125	101	84	70	For gratings with other than 1-3/16" bearing bar
-6		Du	0.074	0.116	0.168	0.228	0.298	0.377	0.456	0.563	0.67	spacing, or for different desing stresses,
		C	632	505	421	361	316	281	253	230	211	proportionate conversion factors apply. Refer to the
		Dc	0.06	0.093	0.134	0.182	0.238	0.302	0.372	0.451	0.536	Metal Bar Grating Enngineering Desing Manual for
1 X 3/16	57	U	947	606	421	309	237	187	152	125	105	the development of such factors.
-8		Du	0.074	0.116	0.168	0.228	0.298	0.377	0.466	0.563	0.67
		C	947	758	632	541	474	421	379	344	316
		Dc	0.06	0.093	0.134	0.182	0.238	0.302	0.372	0.451	0.536	78	84	Note: 1/4" is considered
1 1/4 X 1/8	61	U	987	632	439	322	247	195	158	130	110	93	81	the maximum deflection
-7		Du	0.06	0.093	0.134	0.182	0.238	0.302	0.372	0.451	0.536	0.629	0.73	consistent with pedestrian
		C	987	789	658	564	493	493	395	329	329	304	282	comfort, but can be
		Dc	0.048	0.074	0.107	0.146	0.191	0.241	0.298	0.36	0.429	0.504	0.584	exceeded for other loading
1 1/4 X 3/16	67	U	1480	947	658	483	370	292	237	196	164	140	121	conditions at the discretion
-9		Du	0.06	0.093	0.134	0.182	0.238	0.302	0.372	0.451	0.536	0.629	0.73	of the engineer.
		C	1480	1184	987	846	740	658	592	538	493	455	423
		Dc	0.048	0.074	0.107	0.146	0.191	0.241	0.298	0.36	0.429	0.504	0.584	90	96	102	108
1 1/2 X 1/8	70	U	1421	909	632	464	355	281	227	188	158	135	116	101	89	79	70
-8		Du	0.05	0.078	0.112	0.152	0.199	0.251	0.31	0.376	0.447	0.524	0.605	0.698	0.794	0.897	1,006
		C	1421	1137	947	812	711	632	568	517	474	437	406	379	355	334	316
		Dc	0.04	0.062	0.089	0.122	0.159	0.201	0.248	0.3	0.358	0.42	0.487	0.559	0.636	0.718	0.804
1 1/2 X 3/16	77	U	2132	1364	947	696	533	421	341	282	237	202	174	152	133	118	105
-11		Du	0.05	0.078	0.112	0.152	0.199	0.251	0.31	0.376	0.477	0.524	0.608	0.698	0.794	0.897	1,006
		C	2132	1705	1421	1218	1066	947	853	775	711	656	609	568	533	502	474
		Dc	0.04	0.062	0.089	0.122	0.159	0.201	0.248	0.3	0.358	0.42	0.487	0.559	0.636	0.718	0.804
1 3/4 X 3/16	87	U	2901	1857	1289	947	725	573	464	384	322	275	237	206	181	161	143
-13		Du	0.043	0.067	0.096	0.13	0.17	0.215	0.266	0.322	0.383	0.45	0.521	0.599	0.681	0.769	0.862
		C	2901	2321	1934	1658	1451	1289	1161	1055	967	893	829	774	725	683	645
		Dc	0.034	0.053	0.077	0.104	0.136	0.172	0.213	0.257	0.306	0.36	0.417	0.479	0.545	0.615	0.689
2 X 3/16	96	U	3789	2425	1684	1237	947	749	606	501	421	359	309	269	237	210	187
-13		Du	0.037	0.058	0.084	0.114	0.149	0.189	0.233	0.282	0.335	0.393	0.456	0.524	0.596	0.673	0.754
		C	3789	3032	2526	2165	1895	1684	1516	1378	1263	1166	1083	1011	947	892	842
		Dc	0.03	0.047	0.067	0.091	0.199	0.151	0.186	0.225	0.268	0.315	0.365	0.419	0.477	0.538	0.603
2 1/4 X 3/16	105	U	4796	3069	2132	1566	1199	947	767	634	533	454	392	341	300	266	237
-16		Du	0.033	0.052	0.074	0.101	0.132	0.168	0.207	0.25	0.298	0.35	0.406	0.466	0.53	0.598	0.67
		C	4796	3837	3197	2741	2398	2132	1918	1744	1599	1476	1370	1279	1199	1128	1066
		Dc	0.026	0.041	0.06	0.081	0.106	0.134	0.166	0.2	0.238	0.28	0.324	0.372	0.424	0.478	0.536
2 1/2 X 3/16	113	U	5921	3789	2632	1933	1480	1170	947	783	658	561	483	421	370	328	292
-18		Du	0.03	0.047	0.067	0.091	0.119	0.151	0.186	0.225	0.268	0.315	0.365	0.419	0.477	0.538	0.603
		C	5921	4737	3947	3383	2961	2632	2368	2153	1974	1822	1692	1579	1480	1393	1316
		Dc	0.024	0.037	0.054	0.073	0.095	0.121	0.149	0.18	0.215	0.252	0.292	0.335	0.381	0.431	0.483

U: Permissible uniform load (in kg / m2).

C: Permissible concentrated load (in kg / m)

Du: Deflection with uniform load (mm)

Dc: Deflection with concentrated load (mm)

Theoretical Weight Chart
CARBON STEEL
PRODUCT		W11-2	W11-4	W13-2	W13-4	W15-2	W15-4	W16-2	W16-4	W19-2	W19-4
BEARING BAR SPACING		11/16"	11/16"	13/16"	13/16"	15/16"	15/16"	16/16"	16/16"	19/16"	19/16"
THICKNESS (in)	WIDTH (in)	Lbs/ft²	Lbs/ft²	Lbs/ft²	Lbs/ft²	Lbs/ft²	Lbs/ft²	Lbs/ft²	Lbs/ft²	Lbs/ft²	Lbs/ft²
1/8	3/4	6.7	6.17	5.82	5.29	5.25	4.72	5.16	4.62	4.37	3.84
	1	8.58	8.05	7.41	6.88	6.64	6.11	6.52	5.98	5.47	4.94
	1 1/4	10.46	9.93	9	8.47	8.04	7.5	7.68	7.35	6.57	6.04
	1 1/2	12.34	11.81	10.59	10.06	9.43	8.9	9.25	8.71	7.68	7.14
3/16	3-Apr	9.52	8.99	8.21	7.68	7.34	6.81	7.2	6.67	6.02	5.49
	1	12.34	11.81	10.59	10.06	9.43	8.9	9.25	8.71	7.68	7.14
	1 1/4	15.16	14.63	12.97	12.44	11.52	10.99	11.29	10.75	9.33	8.8
	1 1/2	17.98	17.45	15.35	14.82	13.61	13.08	13.33	12.79	10.98	10.45
	1 3/4	21.07	20.4	18	17.34	15.97	15.3	15.64	14.97	12.9	12.24
	2	23.89	23.22	20.38	19.72	18.06	17.39	17.68	17.01	14.55	13.89
	2 1/4	26.71	26.04	22.76	22.1	20.15	19.48	19.72	19.05	16.21	15.54
	2 1/2	29.53	28.86	25.15	24.49	22.24	21.57	21.77	21.09	17.86	17.2