Phenolic Grating – I 15-60 PH – I Bearing Bar

1 1/2" Thick | 60% Open | USCG Approval #164.040/13/0

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Phenolic Grating – I 15-60 PH – I Bearing Bar

NOTE: These products are only available by special order. Minimum orders, extended lead times and special-order pricing will apply.

Span (inches)	CONCENTRATED LOAD in lb/ft of width								Max Load (lb/ft)	Apparent EI x 10⁶ (lb-in²)
Span (inches)	50	100	150	200	250	500	1000	2000	Max Load (lb/ft)	Apparent EI x 10⁶ (lb-in²)
12	0.001	0.002	0.003	0.004	0.005	0.010	0.020	0.040	6222	1.8
18	0.002	0.005	0.007	0.009	0.012	0.023	0.047	0.093	4148	2.6
24	0.005	0.009	0.014	0.018	0.023	0.045	0.090	0.180	3111	3.2
30	0.008	0.015	0.023	0.031	0.038	0.077	0.154	0.307	2489	3.66
36	0.012	0.024	0.036	0.048	0.060	0.121	0.242	0.484	2074	4.02
42	0.018	0.036	0.054	0.072	0.090	0.180	0.361		1778	4.28
44	0.020	0.040	0.060	0.080	0.099	0.199	0.398		1697	4.46
48	0.026	0.051	0.077	0.102	0.128	0.256	0.512		1556	4.5
54	0.036	0.073	0.109	0.145	0.181	0.363			1383	4.52

Span (inches)	UNIFORM LOAD in lb/ft²								Max Load (lb/ft²)	Apparent EI x 10⁶ (lb-in²)
Span (inches)	50	100	150	200	250	500	1000	2000	Max Load (lb/ft²)	Apparent EI x 10⁶ (lb-in²)
12	0.001	0.001	0.002	0.002	0.003	0.006	0.012	0.025	15555	1.8
18	0.003	0.004	0.007	0.009	0.011	0.022	0.044	0.088	6057	2.6
24	0.006	0.011	0.017	0.022	0.028	0.056	0.112	0.225	3182	3.2
30	0.012	0.024	0.036	0.048	0.060	0.120	0.240	0.480	1992	3.66
36	0.023	0.045	0.068	0.091	0.113	0.227	0.453		1393	4.02
42	0.039	0.079	0.118	0.158	0.197	0.394			1014	4.28
44	0.046	0.091	0.137	0.182	0.228	0.456			927	4.46
48	0.064	0.128	0.192	0.256	0.320	0.640			778	4.5
54	0.102	0.204	0.306	0.408	0.510				615	4.52

Properties Per Foot of Width	# of Bars	Load Bar Width	Bar Centers	Weight/sq ft
A = 3.11 in² I = 0.88 in⁴ S = 1.17 in³	8	0.6″	1.5″	3.06

1. Tables were developed in accordance with the test method developed by the Fiberglass Grating Manufacturers Council (FGMC) of the American Composites Manufacturers Association (ACMA) for the Fiberglass Grating Standard.

2. The designer should not exceed MAXIMUM RECOMMENDED load at any time. ULTIMATE CAPACITY represents MAX LOAD observed at initial fracture.

3. Walking loads for maintenance traffic are typically a live load of 50 PSF. Deflections for worker comfort are typically limited to 0.375″ (3/8″) or SPAN divided by 120 under full live load. For a firmer feel under full live load or a line load 250 lb/ft of width, limit deflections to 0.25″ (1/4″) or SPAN divided by 200.

4. The loads represented are for STATIC LOAD CONDITIONS at ambient temperature. Deflections for impact loads or dynamic loads will MULTIPLY the deflections shown by 2. Long term loads will result in added deflection due to creep in the material and will require higher factors of safety to ensure acceptable performance.

5. Deflections are limited too 0.5″ (1/2″) as recommended by the Fiberglass Grating Manufacturers Council of the American Composites Manufacturers Association.