Concave Molded Grating

$230.00 - $791.67
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Benefits of FRP Grating

  • Lightweight Materials
  • Reduced Installation Costs
  • Low maintenance Life Cycles
  • Ease of Fabrication
  • Enhanced Workplace Environment

Features of Grating

  • Corrosion Resistant
  • Slip resistant top surface
  • Fire Retardant
  • Varietry of Standard colors
  • Impact Resistant
  • UV Inhibitors

Type of Grating Surfaces

  • Concave surface: Anti-Skid surface.
  • Grit surface: Extra slip-resistance as per BS 7976-2.

Standard Resin Systems Available

Resin Type
Resin Base
Description
Corrosion
Resistance
Flame Spread Rating
ASTM E-84
Max Oper.
Temp.
VFR
Vinyl
Easter
Superior Corrosion Resistance
and Fire Retardant
Excellent
Class 1,25 or less
110oC/230oF
IFR
Isopbtbalic
Polyester
Industrial Grade Corrosion Resistance
and Fire Retardant
Very Good
Class 1,25 or less
90oC/190oF

Molded Grating Specifications

Type
Thickness
Mesh Size
Open Area
Weight/
Sq. Ft
Available Panel Size
Square
1/2''
11/2"x1/2"
69%
1.5
4' x 8' , 4' x 12'
Square
1/2''
2" x 2"
76%
1.3
4' x 8' , 4' x 12'
Square
1"
11/2"x1/2"
69%
2.6
4' x 8' , 4' x 12'
Square
11/4"
11/2"x1/2"
69%
3.2
4' x 8' , 4' x 12'
Square
11/2"
11/2"x1/2"
69%
4.0
4' x 8' , 4' x 12'
Square
2"
2" x 2"
72%
4.5
4' x 8' , 4' x 12'
Note:
  1. Panel weight may vary according to type of resin and top surface.
  2. Mesh size: Spacinf between bar centers.
  3. Other thickness and sizes are available upon request.

Molded Grating Load and Deflection Data

The designer should not exceed MAXIMUM-RECOMMENDED load at any time. MAXIMUM LOAD represents a 3:1 factor of safety on ULTIMATE CAPACITY. ULTIMATE CAPACITY represents MAX LOAD observed at initial fracture.

Walking loads for maintenance traffic are typically a live load of 60 PSF. Deflections for worker comfort aretypically limited to 3/8 " or SPAN divided by 120 under full live load. For a firmer feel under full live load or a line load 250 lbs/ft of width, limit deflections to 1/4 " or SPAN divided by 200.

The loads represented are for STATIC LOAD CONDDITIONS at ambient temperature. Deflections for impact loads or dynamic loads will MULTIPLY the deflections shown by 2. Long term loads will result in added deflection due to creep in the material and will require higher factors of safety to ensure acceptable performance.

0.5" Thick 1.5" x 1.5" Square Mesh

72% Open Area
1.34 lbs.ft2
Span
(inch)
CONCENTRATED LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
0.04
0.08
0.13
0.17
0.25
0.42
   
280
18
0.13
0.26
0.38
0.52
0.73
     
180
24
0.29
0.58
           
140

 

Span
(inch)
UNIFORM LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
0.03
0.05
0.08
0.11
0.17
0.29
0.53
 
350
18
0.12
0.24
0.36
0.48
       
150
24
0.37
             
80

0.5" Thick 2.0" x 2.0" Square Mesh

78% Open Area
1.03 lbs.ft2
Span
(inch)
CONCENTRATED LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
0.05
0.11
0.15
0.20
0.27
0.51
   
230
18
0.15
0.32
0.45
0.64
       
150
24
0.39
0.68
           
110

Span
(inch)
UNIFORM LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
0.03
0.06
0.10
0.13
0.18
0.35
0.63
 
300
18
0.14
0.28
0.45
0.58
       
130
24
0.41
             
70

1.0" Thick 1.5" x 1.5" Square Mesh

69% Open Area
2.5 lbs.lf2
Span
(inch)
CONCENTRATED LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
 
0.01
0.02
0.03
0.04
0.06
0.13
0.23
1140
18
0.02
0.04
0.05
0.07
0.10
0.18
0.36
 
930
24
0.04
0.08
0.12
0.16
0.22
0.41
   
660
30
0.08
0.15
0.24
0.33
0.41
     
530
36
0.14
0.26
0.38
0.52
0.69
     
350

Span
(inch)
UNIFORM LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
 
0.01
0.01
0.02
0.03
0.04
0.07
0.14
2300
18
0.02
0.03
0.05
0.07
0.09
0.17
0.33
0.66
1200
24
0.05
0.10
0.15
0.21
0.29
0.51
   
660
30
0.12
0.24
0.36
0.47
0.63
     
420
36
0.24
0.48
           
210

1.5" Thick 1.5" x 1.5" Square Mesh

68% Open Area
3.95 lbs.ft2
Span
(inch)
CONCENTRATED LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
     
0.01
0.02
0.03
0.04
0.09
2010
18
 
0.01
0.02
0.03
0.04
0.06
0.11
0.22
1310
24
0.01
0.02
0.04
0.05
0.06
0.12
0.23
0.46
1010
30
0.02
0.04
0.06
0.09
0.17
0.24
0.48
 
810
36
0.04
0.07
0.11
0.14
0.18
0.36
   
640
42
0.06
0.13
0.19
0.25
0.28
0.56
   
530
48
0.08
0.17
0.25
0.34
0.48
     
490
54
0.12
0.28
0.37
0.48
0.59
     
430

Span
(inch)
UNIFORM LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
       
0.01
0.02
0.03
0.06
4020
18
 
0.01
0.02
0.02
0.04
0.05
0.10
0.21
1810
24
0.01
0.03
0.04
0.06
0.07
0.15
0.32
0.58
920
30
0.03
0.07
0.10
0.14
0.17
0.34
0.68
 
630
36
0.07
0.15
0.20
0.27
0.37
0.67
   
430
42
0.13
0.26
0.37
0.49
0.66
     
310
48
0.21
0.47
0.66
         
215
54
0.34
0.69
           
185

2.0" Thick 2.0" x 2.0" Square Mesh

72% Open Area
4.38 lbs.ft2
Span
(inch)
CONCENTRATED LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
         
0.01
0.02
0.04
4320
18
   
0.01
0.02
0.03
0.04
0.06
0.14
3080
24
 
0.01
0.02
0.03
0.04
0.06
0.12
0.24
2160
30
0.01
0.02
0.04
0.05
0.06
0.13
0.25
0.45
1530
36
0.02
0.04
0.07
0.08
0.11
0.19
0.38
 
1440
42
0.03
0.06
0.09
0.13
0.18
0.32
0.59
 
1230
48
0.04
0.09
0.13
0.18
0.27
0.45
   
1080
54
0.06
0.12
0.18
0.26
0.35
0.61
   
990
60
0.08
0.17
0.27
0.34
0.45
     
860

Span
(inch)
UNIFORM LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
12
       
0.01
0.02
0.02
0.03
9240
18
   
0.01
0.02
0.03
0.04
0.05
0.11
4010
24
0.01
0.02
0.03
0.04
0.05
0.08
0.15
0.30
2160
30
0.02
0.04
0.05
0.07
0.09
0.16
0.35
 
1402
36
0.04
0.07
0.11
0.14
0.19
0.28
   
920
42
0.07
0.13
0.19
0.29
0.33
0.37
   
660
48
0.11
0.27
0.36
0.45
0.54
0.67
   
560
54
0.18
0.34
0.54
0.69
       
450
60
0.29
0.59
           
345

2.5" Thick 1.5" x 1.5" Square Mesh

47% Open Area
10.9 lbs.ft2
Span
(inch)
CONCENTRATED LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
24
       
0.01
0.01
0.03
0.06
16660
30
     
0.01
0.02
0.03
0.06
0.11
10660
36
 
0.01
0.01
0.02
0.03
0.05
0.10
0.20
7333
42
0.01
0.02
0.02
0.03
0.05
0.08
0.16
0.31
5600
48
0.01
0.02
0.03
0.05
0.07
0.12
0.23
0.47
4667
54
0.02
0.03
0.05
0.07
0.10
0.16
0.33
0.66
3733
60
0.02
0.05
0.07
0.09
0.14
0.23
0.46
 
2933
66
0.03
0.06
0.09
0.12
0.18
0.30
0.61
 
2400

Span
(inch)
UNIFORM LOAD
in lbs/ft of width
Max Load
50
100
150
200
300
500
1000
2000
24
   
0.01
0.01
0.01
0.02
0.04
0.07
13600
30
 
0.01
0.01
0.02
0.03
0.04
0.09
0.18
6400
36
0.01
0.02
0.03
0.04
0.06
0.10
0.19
0.38
3840
42
0.02
0.03
0.05
0.07
0.10
0.17
0.35
 
2600
48
0.03
0.06
0.09
0.12
0.18
0.30
0.59
 
1800
54
0.05
0.09
0.14
0.19
0.28
0.47
   
1280
60
0.07
0.15
0.22
0.29
0.44
0.73
   
880
66
0.11
0.21
0.32
0.43
0.64
     
680
Weight:
5.00 LBS