Skip to content
Search Product Warranty

Documentation - Molded Grating - 1.5x1.5xh1.2-standard

1.5 × 1.5 × H 1.2" (38 × 38 × H 30 mm) Standard

Product Overview

This 1.2-inch-deep molded FRP grating uses a square 1.5-inch × 1.5-inch mesh with a 68% open area. The square mesh provides comparable support characteristics in both panel directions, allowing flexible panel orientation and field fabrication while maintaining drainage, airflow, and light transmission.

The additional depth provides greater stiffness and load capacity than the 1-inch-deep version without the added weight of a full 1.5-inch panel. Common uses include pedestrian walkways, maintenance platforms, equipment access areas, trench covers, wastewater facilities, marine environments, food-processing plants, chemical-processing facilities, and other corrosive locations requiring lightweight, nonconductive grating.

Buy Now

Dimensional Drawings

Imperial dimensional drawing for 1.5 by 1.5 inch mesh by 1.2 inch deep molded FRP standard grating
Figure 32: Imperial Units
Metric dimensional drawing for 38 by 38 millimeter mesh by 30 millimeter deep molded FRP standard grating
Figure 33: Metric Units

Product Specifications

Style Standard
Top Open Area 68%
Measurement Metric Imperial
Mesh Length 38 mm 1.5 in
Mesh Width 38 mm 1.5 in
Mesh Thickness 30 mm 1.2 in
Bar Thickness at Top 6.5 mm 0.26 in
Bar Thickness at Bottom 5 mm 0.20 in
Maximum Panel Width 991 mm 39 in
Maximum Panel Length 4039 mm 159 in
Weight 14.65 kg/m2 3.0 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 		2,000
lb/ft2 		Maximum Recommended Load
(lb/ft2)		 Ultimate Load
(lb/ft2)
12 <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.03 0.06 0.11 2,254 11,272
18 0.01 0.02 0.03 0.04 0.06 0.08 0.13 0.27 0.54 1,069 5,346
24 0.04 0.06 0.08 0.13 0.16 0.26 0.43 — — 578 2,889
30 0.10 0.12 0.18 0.27 0.36 0.52 0.87 — — 358 1,790
36 0.20 0.27 0.40 0.60 0.80 — — — — 247 1,235
42 0.34 0.40 0.60 — — — — — — 189 944

Line Load — Deflection in Inches

Clear Span
(in)		 50
lb/ft		 100
lb/ft		 200
lb/ft		 300
lb/ft		 500
lb/ft		 1,000
lb/ft		 2,000
lb/ft		 Maximum Recommended Load
(lb/ft)		 Ultimate Load
(lb/ft)
12 <0.01 <0.01 0.01 0.02 0.03 0.06 0.12 1,154 5,770
18 0.02 0.03 0.06 0.09 0.15 0.28 0.56 801 4,005
24 0.03 0.07 0.13 0.20 0.32 0.64 — 577 2,887
30 0.06 0.12 0.23 0.35 0.58 — — 439 2,195
36 0.10 0.23 0.45 0.68 — — — 385 1,924
42 0.17 0.30 0.56 0.84 — — — 341 1,707

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

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare