Pultruded I-bar
I-Bar PI-1550
PI-1550
PI-1550 combines a 1-1/2-inch I-bar profile with 50% open area at 3.60 lbs/sf. Published load tables support comparisons for walkways and equipment-access platforms.
Panel Specifications
- Panel size
- 5' x 20'
- Approx. weight
- 3.60 lbs/sf
- Open area
- 50%
- Load bar depth
- 1 1/2"
- Bar centers
- 1.2"
- Bars per foot of width
- 10
- Engineering properties per foot of width
- A=3.89in2I=1.11in4S=1.47in3
Typical uses
- Process walkways
- Equipment-access platforms
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)
| Span | 50 | 100 | 150 | 200 | 250 | 500 | 1000 | 2000 | Max rec. load (lbs/sq ft) | Apparent EI ×10⁶ (lb-in²) |
|---|---|---|---|---|---|---|---|---|---|---|
| 12" | <0.001 | 0.001 | 0.001 | 0.002 | 0.002 | 0.005 | 0.009 | 0.018 | 13992 | 2.46 |
| 18" | 0.001 | 0.003 | 0.004 | 0.006 | 0.007 | 0.014 | 0.028 | 0.057 | 9328 | 4.00 |
| 24" | 0.004 | 0.007 | 0.011 | 0.015 | 0.019 | 0.037 | 0.074 | 0.149 | 5878 | 4.84 |
| 30" | 0.008 | 0.017 | 0.025 | 0.034 | 0.042 | 0.084 | 0.168 | 0.335 | 3486 | 5.25 |
| 36" | 0.017 | 0.033 | 0.050 | 0.067 | 0.083 | 0.167 | 0.334 | 0.668 | 2485 | 5.46 |
| 42" | 0.031 | 0.061 | 0.092 | 0.122 | 0.153 | 0.305 | 0.610 | — | 1806 | 5.53 |
| 48" | 0.052 | 0.103 | 0.155 | 0.206 | 0.258 | 0.516 | — | — | 1384 | 5.58 |
| 54" | 0.082 | 0.165 | 0.247 | 0.330 | 0.412 | — | — | — | 1091 | 5.60 |
| 60" | 0.125 | 0.250 | 0.376 | 0.501 | 0.626 | — | — | — | 886 | 5.61 |
| 66" | 0.183 | 0.366 | 0.548 | — | — | — | — | — | 730 | 5.63 |
| 72" | 0.259 | 0.517 | — | — | — | — | — | — | 614 | 5.64 |
Line load (lbs/ft of width)
| Span | 50 | 100 | 150 | 200 | 250 | 500 | 1000 | 2000 | Max rec. load (lbs/ft of width) | Apparent EI ×10⁶ (lb-in²) |
|---|---|---|---|---|---|---|---|---|---|---|
| 12" | 0.001 | 0.001 | 0.002 | 0.003 | 0.004 | 0.007 | 0.015 | 0.029 | 11055 | 2.46 |
| 18" | 0.002 | 0.003 | 0.005 | 0.006 | 0.008 | 0.015 | 0.030 | 0.061 | 7370 | 4.00 |
| 24" | 0.003 | 0.006 | 0.009 | 0.012 | 0.015 | 0.030 | 0.060 | 0.119 | 5528 | 4.84 |
| 30" | 0.005 | 0.011 | 0.016 | 0.021 | 0.027 | 0.054 | 0.107 | 0.214 | 4422 | 5.25 |
| 36" | 0.009 | 0.018 | 0.027 | 0.036 | 0.045 | 0.089 | 0.178 | 0.356 | 3685 | 5.46 |
| 42" | 0.014 | 0.028 | 0.042 | 0.056 | 0.070 | 0.139 | 0.279 | 0.558 | 3159 | 5.53 |
| 48" | 0.021 | 0.041 | 0.062 | 0.083 | 0.103 | 0.206 | 0.413 | — | 2764 | 5.58 |
| 54" | 0.029 | 0.059 | 0.088 | 0.117 | 0.146 | 0.293 | 0.586 | — | 2457 | 5.60 |
| 60" | 0.040 | 0.080 | 0.120 | 0.160 | 0.200 | 0.401 | — | — | 2211 | 5.61 |
| 66" | 0.053 | 0.106 | 0.160 | 0.213 | 0.266 | 0.532 | — | — | 2010 | 5.63 |
| 72" | 0.069 | 0.138 | 0.207 | 0.276 | 0.345 | 0.689 | — | — | 1843 | 5.64 |
Pultruded I-bar
Others in this family
| Configuration | Load bar depth | Bar centers | Weight | Open |
|---|---|---|---|---|
| I-Bar PI-1040PI-1040 | 1" | 1" | 3.47 lbs/sf | 40% |
| I-Bar PI-1050PI-1050 | 1" | 1.2" | 2.97 lbs/sf | 50% |
| I-Bar PI-1060PI-1060 | 1" | 1 1/2" | 2.47 lbs/sf | 60% |
| I-Bar PI-1540PI-1540 | 1 1/2" | 1" | 4.22 lbs/sf | 40% |
| I-Bar PI-1560PI-1560 | 1 1/2" | 1 1/2" | 2.97 lbs/sf | 60% |
| I-Bar PI-1240PI-1240 | 1 1/4" | 1" | 3.77 lbs/sf | 40% |
| I-Bar PI-1250PI-1250 | 1 1/4" | 1.2" | 3.22 lbs/sf | 50% |
| I-Bar PI-1260PI-1260 | 1 1/4" | 1 1/2" | 2.67 lbs/sf | 60% |
| I-Bar PI-3050PI-3050 | 3" | 1.2" | 10.34 lbs/sf | 50% |
| I-Bar PI-3060PI-3060 | 3" | 1 1/2" | 8.40 lbs/sf | 60% |
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