FRP grating supply & project support for the US

Pultruded I-bar

I-Bar PI-1050

PI-1050

PI-1050 combines a 1-inch depth with 50% open area at 2.97 lbs/sf. Use its published load table to check walkways and removable access panels.

Panel Specifications

Panel size
5' x 20'
Approx. weight
2.97 lbs/sf
Open area
50%
Load bar depth
1"
Bar centers
1.2"
Bars per foot of width
10
Engineering properties per foot of width
A=3.05in2I=0.39in4S=0.77in3
Product
I-Bar PI-1050 dimensions
Dimensions

Typical uses

  • Access walkways
  • Removable panels

Material & Surface Options

Resin systems
Type V Vinyl ester (230°F) · Type I Isophthalic polyester (220°F) · Type O Orthophthalic polyester (160°F)
Choose a Walking Surface
Concave (as-molded) · Grit top · Covered / plated
Standard colors
Dark grey, Light grey, Green, Yellow, Orange
Flame spread (ASTM E84)
Class 1, 25 or less

Load & deflection data

Load & Deflection Data

Published deflection values in inches at the listed spans and loads. Review each table's notes and support conditions with your project engineer.

Uniform load (lbs/sq ft)

Deflection in inches
Span5010015020025050010002000Max rec. load (lbs/sq ft)Apparent EI ×10⁶ (lb-in²)
12"0.0010.0020.0020.0030.0040.0080.0170.033118871.36
18"0.0030.0070.0100.0140.0170.0350.0690.13862991.65
24"0.0100.0190.0290.0380.0480.0960.1910.38336211.88
30"0.0220.0440.0660.0880.1100.2210.442—23081.99
36"0.0450.0910.1360.1810.2270.453——15912.01
42"0.0830.1660.2490.3330.416———11752.03
48"0.1400.2810.4210.562————8982.05
54"0.2240.4480.672—————7092.06
60"0.3400.679——————6382.07

Line load (lbs/ft of width)

Deflection in inches
Span5010015020025050010002000Max rec. load (lbs/ft of width)Apparent EI ×10⁶ (lb-in²)
12"0.0010.0030.0040.0050.0070.0130.0260.05371851.36
18"0.0040.0070.0110.0150.0180.0370.0740.14747901.65
24"0.0080.0150.0230.0310.0380.0770.1530.30635931.88
30"0.0140.0280.0420.0570.0710.1410.2830.56528741.99
36"0.0240.0480.0730.0970.1210.2420.484—23952.01
42"0.0380.0760.1140.1520.1900.380——20532.03
48"0.0560.1120.1690.2250.2810.562——17962.05
54"0.0800.1590.2390.3180.398———15972.06
60"0.1090.2170.3260.4350.543———14372.07
66"0.1440.2880.4320.576————13072.08
72"0.1860.3720.558—————11982.09

See the complete load tables

Pultruded I-bar

Others in this family

ConfigurationLoad bar depthBar centersWeightOpen
I-Bar PI-1040PI-10401"1"3.47 lbs/sf40%
I-Bar PI-1060PI-10601"1 1/2"2.47 lbs/sf60%
I-Bar PI-1540PI-15401 1/2"1"4.22 lbs/sf40%
I-Bar PI-1550PI-15501 1/2"1.2"3.60 lbs/sf50%
I-Bar PI-1560PI-15601 1/2"1 1/2"2.97 lbs/sf60%
I-Bar PI-1240PI-12401 1/4"1"3.77 lbs/sf40%
I-Bar PI-1250PI-12501 1/4"1.2"3.22 lbs/sf50%
I-Bar PI-1260PI-12601 1/4"1 1/2"2.67 lbs/sf60%
I-Bar PI-3050PI-30503"1.2"10.34 lbs/sf50%
I-Bar PI-3060PI-30603"1 1/2"8.40 lbs/sf60%

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