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MOLDED FIBERGLASS GRATING
METRIC BROCHURE
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What is DURAGRATE?
DURAGRATE molded berglass grating is a strong mesh gratingpanel that is the chemical resistant ooring choice for many industrialapplications. DURAGRATE panels are molded in one piece and featurea concave non-slip walking surface. The cost- effective panels allow forefcient on-site cutting to minimize grating waste and load bearing barsin both directions allow for use without continuous side support.
DURAGRATE molded berglass grating is signicantly lighter in weightthan metallic gratings and the high resin content provides excellentcorrosion resistance and requires very little maintenance. A highersafety factor is achieved by designing in a higher glass content at thebottom of the grating for greater tensile strength.
DURAGRATE molded berglass grating is:
Corrosion Resistant Easy To Fabricate
Fire Retardant Impact Resistant
Low in Maintenance Low in Conductivity
Lightweight Bidirectional Load Bearing
Easy To Install Cost Effective
Uniform in Appearance
Molded Fiberglass Grating
Materials of Construction
DURAGRATE molded berglass grating is composed of berglassrovings combined with a choice of ve thermosetting resin systems. Allof the resins contain a UV inhibitor.
Standard DURAGRATE
grating has a concave prole on the uppersurface for skid resistance. Grit tops are available upon request.
The Exide Battery Plant in Manchester, Iowa installed corrosionresistant DURAGRATEaround its tanks of sulfuric acid.
*Strongwell's Standard Colors are Dark Gray, Green, Yellow, Orange and Light Gray. ContactCustomer Service for Resin System and Color Requirements. Custom Colors are Availableupon Request.
** Flame Spread Rating per ASTM E-84 Tunnel Test
ResinCode
Description Resin Base CorrosionResistance
Flame SpreadRating**
NSF-61Certied
VE Chemical ProofFire Retardant
Vinyl Ester Excellent Class 125 or less
NVE Chemical ProofFire Retardant
Vinyl Ester Excellent Class 125 or less
Hot & Cold
XVE Chemical ProofFire Retardant
Vinyl Ester Excellent Class 110 or less
PP Industrial GradeFire Retardant
Isopthalic Very Good Class 125 or less
NPP Industrial GradeFire Retardant
Isopthalic Very Good Class 125 or less
Hot & Cold
GP ArchitecturalGradeFire Retardant
Orthophthalic Good Class 125 or less
FF Food GradeFire Retardant
Isopthalic Very Good Class 230 or less
Standard Resin Systems Available*
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Technical Data
Shapes, Sizes and Availability*
Stair Treads DURAGRATE molded berglass stair treads are available in a 1-1/2" (38.1mm) thick 1-1/2"(38.1mm) x6"(152.4mm) rectangular mesh pattern. The standard panel size is 22-1/2" (571.5mm) x 10' (3048mm).Stair treads can be produced in any of the standard DURAGRATE resin systems. The stair tread panelcomes complete with anti-slip nosing.
DURAGRATE Stair Tread
Stair Tread Panel Cutting Diagram
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Thickness Mesh Panel Size
Maximum Span for300 lbs. (136kg) at Mid-Span Panel
WeightOpenArea1/8" (3.2 mm) or
less deection1/4"(6.4mm) orless deection
1-1/2"(38.1mm)
1-1/2" x 6"(38.1mm x152.4mm)
22-1/2" x 10'(571.5mm x3048mm)
31"(787.4mm)
38"(965.2mm)
60 lbs.(27.2kg)
67%
Typical DURAGRATE Panels
THICKNESS MESH PATTERN PANEL SIZES
1" (25.4mm) 1-1/2" (38.1mm) Square
3' x 10' (914.4mm x 3048.0mm),
4' x 8' (1219.2mm x 2438.4mm),
4' x 12' (1219.2mm x 3657.6mm)
1" (25.4mm)1"x 4" (25.4mm x 101.6mm) Rectan-
gular
3' x 10' (914.4mm x 3048.0mm),
4' x 12' (1219.2mm x 3657.6mm)
1-1/2" (38.1mm)3/4" x 3/4"(19.1mm x 19.1mm)
Mini-GridTM4' x 12' (1219.2mm x 3657.6mm)
1-1/2" (38.1mm)1-1/2" x 6"(38.1 mm x 152.4 mm)
Rectangular4' x 12' (1219.2mm x 3657.6mm)
1-1/2" (38.1mm) 1-1/2" (38.1mm) Square
3' x 10' (914.4mm x 3048.0mm),
4' x 8' (1219.2mm x 2438.4mm),
4' x 12' (1219.2mm x 3657.6mm),
5' x 10' (1524.0mm x 3048.0mm)
2" (50.8mm) 2" (50.8mm) Square 4' x 12' (1219.2mm x 3657.6mm)
*All sizes are metric conversions of standard Imperial dimensions. Parts are sold in standardImperial dimensions only.
DIMENSIONDETAILS
10-609.6mmWIDETREADS
NOWASTE
8-762.0mmWIDETREADS
NOWASTE
6-6914.4mmWIDETREADS10%WA
STE
4-1066.8mm
2-914.4mm
1066.8mm1066.8mm
304.8mm
609.6mm 609.6mm 609.6mm 609.6mm 609.6mm
914.4mm
3048mm
231.8mm
269.9mm5
71.5mm
TREAD
DEPTH
WIDETREADSNOWASTE
762mm 762mm 762mm 762mm
152.4mm 152.4mm 152.4mm
914.4mm 914.4mm
914.4mm
How to Specify
The molded berglass grating shall be DURAGRATEas supplied by Strongwell. Grating panels shall be(pick one from chart for thickness, mesh pattern,resin code) molded grid pattern. The grating shall beone-piece construction with the tops of the bearingbars and cross bars in the same plane. Color shallbe (green) (orange) (yellow) (dark gray) (light gray).Surface shall be (concave top) (gritted).
NOTE: All panel sizes available in VE, XVE, PP, GP or FFresin systems. NPP and NVE resin systems are availablein most panel sizes. Custom panel sizes and resinsavailable upon request.
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Accessories
Panel Installation Elevated Floor System
Fixed and adjustable legs for molded grating are available
to provide sturdy support for elevated ooring. Contact
Strongwell with your exact requirements.
Sealing Kits
To maintain corrosion resistance and structural integrity, standard
resin sealing kits are available to protect the exposed ends of cut
panels and other components.
Curb Angle
Strongwell's pultruded berglass Curb Angle provides a stro
rm base for bearing bars. Standard Curb Angle is produced
ing a gray, re retardant vinyl ester resin system and is avail
in three sizes.
Type J Clips
For attaching grating tosupports for moderate loads.
Type M Clips
For attaching grating tosupports.
Type C Clips
For joining two unsupportededges if needed.
Solid Surface
DURAGRATE is available with an integral
cover bonded to the top surface with a slip
resistant grit surface.
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LOAD SAFE LOAD5:1 SAFETY
FACTORSPANMM
3 3.5 4 4.5 5 6 8 10DEFLECTION E x 1010
N/m2
400u
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Load Tables
1-1/2" (38.1mm) THICK 1-1/2" (38.1mm) SQUARE MESH DURAGRATE
A=6.03 x 103mm2/m. of width 1-1/2 (38.1mm) bearing bars: Values per meter of widthI=6.96 x 105mm4/m of width Open Space = 70%S=3.49 x 104mm3/m of width Approx. Weight = 18.6 kg/sq. m
1.5(38.1mm)
1.5(38.1mm)
1.5(38.1mm)
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1-1/2" (38.1mm) THICK 3/4" (19.1mm) SQUARE MESH DURAGRATE
A=7.66 x 103mm2/m of width 1-1/2 (38.1mm) bearing bars: Values per meter of width
I=9.96 x 105mm4/m of width Open Space = 44%
S=4.83 x 104mm3/m of width Approx. Weight =21.5 kg/sq. m
1-1/2(38.1mm)
1-1/2(38.1mm)
3/4(19.05mm)
LOAD SAFE LOAD5:1 SAFETY
FACTORSPANMM
3 3.5 4 4.5 5 6 8 10DEFLECTION E x 1010
N/m2
400u
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Load Tables
2" (50.8mm) THICK 2" (50.8mm) SQUARE MESH DURAGRATE
A=6.09 x 103mm2/m of width 2 (50.8mm) bearing bars: Values per meter of widthI=13.11 x 105mm4/m of width Open Space = 72%S=5.05 x 104mm3/m of width Approx. Weight = 19.5 kg/sq. m
2(50.8mm)
2(50.8mm)
2(50.8mm)
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1-1/2" (38.1mm) THICK 1-1/2" x 6" (38.1mm x 152.4mm)
RECTANGULAR DURAGRATE
A=8.01 x 103mm2/m of width 1-1/2 (38.1mm) bearing bars: Values per meter of widthI=7.64 x 105mm4/m of width Open Space = 67%S=3.81 x 104mm3/m of width Approx. Weight = 18.6 kg/sq. m
1-1/2(38.1mm)
1-1/2(38.1mm)
6(152.4mm)
LOAD SAFE LOAD5:1 SAFETY
FACTORSPANMM
3 3.5 4 4.5 5 6 8 10DEFLECTION E x 1010
N/m2
400u
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CHATFIELD DIVISION1610 Highway 52 South, Chateld, MN 55923-9799 USA
(507)867-3479 FAX (507)867-4031www.strongwell.com
BRISTOL DIVISION400 Commonwealth Ave., Bristol, VA 24201-3820 USA
(276)645-8000 FAX (276)645-8132ST0212
2012 Strongwell
ISO-9001:2008 Quality Certied and ISO-14001:2004 Environmentally Certied Manufacturing Plants