Molded square & rectangular mesh
1" x 1" x 4" Rectangular Mesh
RM 1"x1"x4"
Rectangular mesh provides 68% open area in a molded panel weighing 2.61 lbs/sf. Compare the published load data for trench covers and access walkways; review supports around any cutouts.
Panel Specifications
- Panel size
- 4' x 12'
- Approx. weight
- 2.61 lbs/sf
- Open area
- 68%
- Load bar width
- 1/4"
- Bar centers
- 1"
- Bars per foot of width
- 12
- Engineering properties per foot of width
- A=2.69in2I=0.22in4S=0.45in3
Typical uses
- Trench covers
- Process access walkways
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.
Concentrated load at mid-span (lbs)
| Span | 100 | 200 | 500 | 750 | 1000 | 1500 | 2000 |
|---|---|---|---|---|---|---|---|
| 18" | 0.007 | 0.014 | 0.036 | 0.054 | 0.072 | 0.108 | 0.144 |
| 24" | 0.019 | 0.038 | 0.096 | 0.143 | 0.191 | 0.287 | 0.382 |
| 30" | 0.037 | 0.075 | 0.187 | 0.281 | 0.374 | 0.561 | — |
| 36" | 0.057 | 0.114 | 0.284 | 0.426 | 0.568 | — | — |
| 42" | 0.092 | 0.184 | 0.460 | 0.690 | — | — | — |
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" | 0.002 | 0.005 | 0.007 | 0.010 | 0.012 | 0.025 | 0.050 | 0.099 | 3668 | 0.45 |
| 18" | 0.011 | 0.023 | 0.034 | 0.046 | 0.057 | 0.114 | 0.228 | 0.456 | 1892 | 0.50 |
| 24" | 0.035 | 0.069 | 0.104 | 0.139 | 0.174 | 0.347 | 0.694 | — | 961 | 0.52 |
| 30" | 0.083 | 0.167 | 0.250 | 0.333 | 0.416 | — | — | — | 615 | 0.53 |
| 36" | 0.170 | 0.339 | 0.509 | 0.679 | — | — | — | — | 427 | 0.54 |
| 42" | 0.301 | 0.603 | — | — | — | — | — | — | 314 | 0.56 |
| 46" | 0.430 | — | — | — | — | — | — | — | 287 | 0.57 |
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" | 0.004 | 0.008 | 0.012 | 0.016 | 0.020 | 0.040 | 0.079 | 0.159 | 1834 | 0.45 |
| 18" | 0.012 | 0.024 | 0.036 | 0.049 | 0.061 | 0.122 | 0.243 | 0.486 | 1419 | 0.50 |
| 24" | 0.028 | 0.056 | 0.083 | 0.111 | 0.139 | 0.278 | 0.555 | — | 961 | 0.52 |
| 30" | 0.053 | 0.107 | 0.160 | 0.213 | 0.266 | 0.533 | — | — | 769 | 0.53 |
| 36" | 0.090 | 0.181 | 0.271 | 0.362 | 0.452 | — | — | — | 641 | 0.54 |
| 42" | 0.138 | 0.276 | 0.413 | 0.551 | 0.689 | — | — | — | 549 | 0.56 |
| 46" | 0.178 | 0.355 | — | — | — | — | — | — | 501 | 0.57 |
Molded square & rectangular mesh
Others in this family
| Configuration | Load bar width | Bar centers | Weight | Open |
|---|---|---|---|---|
| 1" x 1 1/2" Square MeshSM 1"x1-1/2" | 1/4" | 1 1/2" | 2.50 lbs/sf | 69% |
| 1 1/4" x 1 1/2" Square MeshSM 1-1/4"x1-1/2" | 1/4" | 1 1/2" | 3.08 lbs/sf | 69% |
| 1 1/2" x 1 1/2" Square MeshSM 1-1/2"x1-1/2" | 1/4" | 1 1/2" | 3.94 lbs/sf | 68% |
| 2" x 2" Square MeshSM 2"x2" | 5/16" | 2" | 4.51 lbs/sf | 71% |
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