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Documentation - Molded Grating - 1.5x1.5xh2.25-high-capacity

1.5 × 1.5 × H 2.25" (38 × 38 × H 58 mm) High Capacity

Product Overview

This 2.25-inch-deep high-capacity molded FRP grating uses a square 1.5-inch × 1.5-inch mesh with heavy load-bearing bars. The square mesh provides comparable support characteristics in both panel directions, while the increased structural depth provides greater stiffness and span capability than the 2-inch high-capacity profile.

Common applications include heavily loaded industrial platforms, equipment access decks, maintenance areas, trench covers, loading and process areas, wastewater and water-treatment facilities, marine structures, chemical-processing plants, and other corrosive environments requiring high structural capacity and nonconductive construction.

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Dimensional Drawings

Imperial dimensional drawing for 1.5 by 1.5 inch mesh by 2.25 inch deep high-capacity molded FRP grating
Figure 41: Imperial Units
Metric dimensional drawing for 38 by 38 millimeter mesh by 58 millimeter deep high-capacity molded FRP grating
Figure 42: Metric Units

Product Specifications

Style High Capacity
Top Open Area 52%
Measurement Metric Imperial
Mesh Length 38 mm 1.5 in
Mesh Width 38 mm 1.5 in
Mesh Thickness 58 mm 2.25 in
Bar Thickness at Top 11 mm 0.43 in
Bar Thickness at Bottom 8.5 mm 0.33 in
Maximum Panel Width 1041 mm 41 in
Maximum Panel Length 3988 mm 157 in
Weight 45.0 kg/m2 9.2 lb/ft2

Load Tables

Uniform Load — Deflection in Inches

Clear Span
(in)		 50
lb/ft2 		65
lb/ft2 		100
lb/ft2 		150
lb/ft2 		200
lb/ft2 		300
lb/ft2 		500
lb/ft2 		1,000
lb/ft2
12 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.02
18 <0.01 <0.01 <0.01 <0.01 <0.01 0.02 0.05 0.09
24 <0.01 <0.01 0.01 0.02 0.04 0.06 0.11 0.15
30 <0.01 0.01 0.04 0.05 0.08 0.13 0.18 0.32
36 0.01 0.05 0.08 0.11 0.16 — — —
42 0.04 0.09 0.15 0.20 0.31 — — —
48 0.07 0.13 0.22 0.32 — — — —

Point Load — Deflection in Inches

Clear Span
(in)		 50
lb		 100
lb		 150
lb		 200
lb		 300
lb		 500
lb		 1,000
lb		 2,000
lb
12 <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.01 0.04
18 <0.01 <0.01 <0.01 <0.01 <0.01 0.02 0.04 0.08
24 <0.01 <0.01 0.01 0.01 0.02 0.04 0.08 0.14
30 <0.01 0.01 0.02 0.03 0.04 0.07 0.18 0.32
36 0.01 0.03 0.04 0.06 0.08 — — —
42 0.01 0.04 0.06 0.08 0.14 — — —
48 0.03 0.06 0.08 0.11 — — — —

Note: See Appendix A — Load Table Notes for assumptions, limitations, safety factors, and interpretation guidance.

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