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Fiberglass grating specification finder by family, mesh and depth

Updated

Filter by grating family, mesh and depth, or search a known model. Compare up to three catalog configurations and keep the application requirements with your selection. Check loads, resin, surface and supports before specifying a product; then estimate quantities and carry the summary into a project quote request.

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Choose a candidate. Keep the design requirements with it.

Know the model? Use the filters below. Still specifying? Choose an application for the details to check. No inputs are required to browse.

Start with the opening, installation depth and support layout. Record service conditions before choosing resin and surface.

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Add project requirements to your comparison Optional

Include units and load type. Leave blank if you need help defining the requirements.

List chemicals, concentrations and temperatures; state a resin only if specified.

Include wet use, footwear, opening restrictions or your specification reference.

These requirements travel with your comparison into the quote request. They do not change the catalog filters or approve a design.

Filter catalog dimensions

85 matching configurations
Your comparison

Compare up to three configurations.

0 / 3 selected

Select configurations below to compare dimensions, catalog weight and open area side by side.

Catalog configurations

Values from Strongrate’s 2023 catalog. Confirm in your quote and submittal drawings.

moldedCatalog p. 11

3/4" × 3/4" top-mesh pattern; 1-1/2" × 1-1/2" supporting-bar pitch (19 × 19 / 38 × 38 mm) · 1-3/16" (30 mm) deep · bars 0.26" / 0.2" (6.5 / 5.0 mm)

3/4" × 3/4" top-mesh pattern; 1-1/2" × 1-1/2" supporting-bar pitch (19 × 19 / 38 × 38 mm)

Depth
1-3/16" (30 mm)
Weight
3.79 lb/ft² (18.5 kg/m²)
Open area
30%
moldedCatalog p. 11

3/4" × 3/4" top-mesh pattern; 1-1/2" × 1-1/2" supporting-bar pitch (19 × 19 / 38 × 38 mm) · 1-1/2" (38 mm) deep · bars 0.26" / 0.2" (6.5 / 5.0 mm)

3/4" × 3/4" top-mesh pattern; 1-1/2" × 1-1/2" supporting-bar pitch (19 × 19 / 38 × 38 mm)

Depth
1-1/2" (38 mm)
Weight
4.81 lb/ft² (23.5 kg/m²)
Open area
30%
moldedCatalog p. 12

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm) · 9/16" (14 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm)

Depth
9/16" (14 mm)
Weight
2.15 lb/ft² (10.5 kg/m²)
Open area
42%
moldedCatalog p. 12

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm) · 7/8" (22 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm)

Depth
7/8" (22 mm)
Weight
2.97 lb/ft² (14.5 kg/m²)
Open area
42%
moldedCatalog p. 12

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm) · 1-3/16" (30 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm)

Depth
1-3/16" (30 mm)
Weight
3.69 lb/ft² (18 kg/m²)
Open area
42%
moldedCatalog p. 12

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm) · 1-9/16" (40 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm)

Depth
1-9/16" (40 mm)
Weight
4.81 lb/ft² (23.5 kg/m²)
Open area
42%
moldedCatalog p. 12

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm) · 2-3/8" (60 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

3/4" × 3/4" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (20 × 20 / 40 × 40 mm)

Depth
2-3/8" (60 mm)
Weight
7.89 lb/ft² (38.5 kg/m²)
Open area
42%
moldedCatalog p. 12

1" × 1" top-mesh pattern; 2-1/16" × 2-1/16" supporting-bar pitch (26 × 26 / 52 × 52 mm) · 1-3/16" (30 mm) deep · bars 0.26" / 0.2" (6.5 / 5.0 mm)

1" × 1" top-mesh pattern; 2-1/16" × 2-1/16" supporting-bar pitch (26 × 26 / 52 × 52 mm)

Depth
1-3/16" (30 mm)
Weight
3.17 lb/ft² (15.5 kg/m²)
Open area
60%
moldedCatalog p. 12

1" × 1" top-mesh pattern; 2-1/16" × 2-1/16" supporting-bar pitch (26 × 26 / 52 × 52 mm) · 1-1/2" (38 mm) deep · bars 0.26" / 0.2" (6.5 / 5.0 mm)

1" × 1" top-mesh pattern; 2-1/16" × 2-1/16" supporting-bar pitch (26 × 26 / 52 × 52 mm)

Depth
1-1/2" (38 mm)
Weight
3.99 lb/ft² (19.5 kg/m²)
Open area
60%
moldedCatalog p. 12

1/2" × 1/2" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (13 × 13 / 40 × 40 mm) · 7/8" (22 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

1/2" × 1/2" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (13 × 13 / 40 × 40 mm)

Depth
7/8" (22 mm)
Weight
3.07 lb/ft² (15 kg/m²)
Open area
30%
moldedCatalog p. 12

1/2" × 1/2" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (13 × 13 / 40 × 40 mm) · 1-3/16" (30 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

1/2" × 1/2" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (13 × 13 / 40 × 40 mm)

Depth
1-3/16" (30 mm)
Weight
3.89 lb/ft² (19 kg/m²)
Open area
30%
moldedCatalog p. 12

1/2" × 1/2" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (13 × 13 / 40 × 40 mm) · 1-9/16" (40 mm) deep · bars 0.28" / 0.2" (7.0 / 5.0 mm)

1/2" × 1/2" top-mesh pattern; 1-9/16" × 1-9/16" supporting-bar pitch (13 × 13 / 40 × 40 mm)

Depth
1-9/16" (40 mm)
Weight
5.12 lb/ft² (25 kg/m²)
Open area
30%
pultrudedCatalog p. 17

T-1210 · T-bar · 1" (25 mm) deep

T-bar · bearing bars on 1-11/16" (43 mm) centers

Depth
1" (25 mm)
Weight
2.97 lb/ft² (14.5 kg/m²)
Open area
12%
pultrudedCatalog p. 17

T-1810 · T-bar · 1" (25 mm) deep

T-bar · bearing bars on 2" (51 mm) centers

Depth
1" (25 mm)
Weight
2.83 lb/ft² (13.8 kg/m²)
Open area
18%
pultrudedCatalog p. 17

T-2510 · T-bar · 1" (25 mm) deep

T-bar · bearing bars on 2" (51 mm) centers

Depth
1" (25 mm)
Weight
2.79 lb/ft² (13.6 kg/m²)
Open area
25%
pultrudedCatalog p. 17

T-3310 · T-bar · 1" (25 mm) deep

T-bar · bearing bars on 2-3/8" (61 mm) centers

Depth
1" (25 mm)
Weight
2.29 lb/ft² (11.2 kg/m²)
Open area
33%
pultrudedCatalog p. 17

T-3810 · T-bar · 1" (25 mm) deep

T-bar · bearing bars on 2-3/8" (61 mm) centers

Depth
1" (25 mm)
Weight
2.09 lb/ft² (10.2 kg/m²)
Open area
38%
pultrudedCatalog p. 17

T-1215 · T-bar · 1-1/2" (38 mm) deep

T-bar · bearing bars on 1-11/16" (43 mm) centers

Depth
1-1/2" (38 mm)
Weight
4.01 lb/ft² (19.6 kg/m²)
Open area
12%
pultrudedCatalog p. 17

T-2515 · T-bar · 1-1/2" (38 mm) deep

T-bar · bearing bars on 2" (51 mm) centers

Depth
1-1/2" (38 mm)
Weight
3.42 lb/ft² (16.7 kg/m²)
Open area
25%
pultrudedCatalog p. 17

T-3815 · T-bar · 1-1/2" (38 mm) deep

T-bar · bearing bars on 2-3/8" (61 mm) centers

Depth
1-1/2" (38 mm)
Weight
2.91 lb/ft² (14.2 kg/m²)
Open area
38%
pultrudedCatalog p. 17

I-4010 · I-bar · 1" (25 mm) deep

I-bar · bearing bars on 1" (25 mm) centers

Depth
1" (25 mm)
Weight
3.5 lb/ft² (17.1 kg/m²)
Open area
40%
pultrudedCatalog p. 17

I-5010 · I-bar · 1" (25 mm) deep

I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
1" (25 mm)
Weight
2.91 lb/ft² (14.2 kg/m²)
Open area
50%
pultrudedCatalog p. 17

I-6010 · I-bar · 1" (25 mm) deep

I-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
1" (25 mm)
Weight
2.29 lb/ft² (11.2 kg/m²)
Open area
60%
pultrudedCatalog p. 17

I-40125 · I-bar · 1-3/16" (30 mm) deep

I-bar · bearing bars on 1" (25 mm) centers

Depth
1-3/16" (30 mm)
Weight
4.06 lb/ft² (19.8 kg/m²)
Open area
40%
pultrudedCatalog p. 17

I-50125 · I-bar · 1-3/16" (30 mm) deep

I-bar · bearing bars on 1-3/16" (31 mm) centers

Depth
1-3/16" (30 mm)
Weight
3.56 lb/ft² (17.4 kg/m²)
Open area
50%
pultrudedCatalog p. 17

I-60125 · I-bar · 1-3/16" (30 mm) deep

I-bar · bearing bars on 1-1/2" (37 mm) centers

Depth
1-3/16" (30 mm)
Weight
2.77 lb/ft² (13.5 kg/m²)
Open area
60%
pultrudedCatalog p. 17

I-4015 · I-bar · 1-1/2" (38 mm) deep

I-bar · bearing bars on 1" (25 mm) centers

Depth
1-1/2" (38 mm)
Weight
4.51 lb/ft² (22 kg/m²)
Open area
40%
pultrudedCatalog p. 17

I-5015 · I-bar · 1-1/2" (38 mm) deep

I-bar · bearing bars on 1-3/16" (31 mm) centers

Depth
1-1/2" (38 mm)
Weight
3.91 lb/ft² (19.1 kg/m²)
Open area
50%
pultrudedCatalog p. 17

I-6015 · I-bar · 1-1/2" (38 mm) deep

I-bar · bearing bars on 1-1/2" (37 mm) centers

Depth
1-1/2" (38 mm)
Weight
3.3 lb/ft² (16.1 kg/m²)
Open area
60%
pultrudedCatalog p. 17

T-3320 · T-bar · 2" (50 mm) deep

T-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
2" (50 mm)
Weight
4.16 lb/ft² (20.3 kg/m²)
Open area
33%
pultrudedCatalog p. 17

T-5020 · T-bar · 2" (50 mm) deep

T-bar · bearing bars on 2" (51 mm) centers

Depth
2" (50 mm)
Weight
3.22 lb/ft² (15.7 kg/m²)
Open area
50%
pultrudedCatalog p. 17

HI-4710 · High-load I-bar · 1" (25 mm) deep

High-load I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
1" (25 mm)
Weight
5.65 lb/ft² (27.6 kg/m²)
Open area
47%
pultrudedCatalog p. 17

HI-4715 · High-load I-bar · 1-1/2" (38 mm) deep

High-load I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
1-1/2" (38 mm)
Weight
8.19 lb/ft² (40 kg/m²)
Open area
47%
pultrudedCatalog p. 17

HI-4720 · High-load I-bar · 2" (50 mm) deep

High-load I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
2" (50 mm)
Weight
11.16 lb/ft² (54.5 kg/m²)
Open area
47%
pultrudedCatalog p. 17

HI-4725 · High-load I-bar · 2-1/2" (64 mm) deep

High-load I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
2-1/2" (64 mm)
Weight
12.62 lb/ft² (61.6 kg/m²)
Open area
47%
pultrudedCatalog p. 17

HI-4730 · High-load I-bar · 3" (76 mm) deep

High-load I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
3" (76 mm)
Weight
15.07 lb/ft² (73.6 kg/m²)
Open area
47%
pultrudedCatalog p. 17

HI-5810 · High-load I-bar · 1" (25 mm) deep

High-load I-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
1" (25 mm)
Weight
4.3 lb/ft² (21 kg/m²)
Open area
58%
pultrudedCatalog p. 17

HI-5815 · High-load I-bar · 1-1/2" (38 mm) deep

High-load I-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
1-1/2" (38 mm)
Weight
6.51 lb/ft² (31.8 kg/m²)
Open area
58%
pultrudedCatalog p. 17

HI-5820 · High-load I-bar · 2" (50 mm) deep

High-load I-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
2" (50 mm)
Weight
8.7 lb/ft² (42.5 kg/m²)
Open area
58%
pultrudedCatalog p. 17

HI-5825 · High-load I-bar · 2-1/2" (64 mm) deep

High-load I-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
2-1/2" (64 mm)
Weight
10.02 lb/ft² (48.9 kg/m²)
Open area
58%
pultrudedCatalog p. 17

HI-5830 · High-load I-bar · 3" (76 mm) deep

High-load I-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
3" (76 mm)
Weight
12 lb/ft² (58.6 kg/m²)
Open area
58%
pultrudedCatalog p. 17

HL-4020 · High-load I-bar · 2" (50 mm) deep

High-load I-bar · bearing bars on 1" (25 mm) centers

Depth
2" (50 mm)
Weight
14.42 lb/ft² (70.4 kg/m²)
Open area
40%
pultrudedCatalog p. 17

HL-5020 · High-load I-bar · 2" (50 mm) deep

High-load I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
2" (50 mm)
Weight
10.69 lb/ft² (52.2 kg/m²)
Open area
50%
pultrudedCatalog p. 17

HL-6020 · High-load I-bar · 2" (50 mm) deep

High-load I-bar · bearing bars on 1-1/2" (38 mm) centers

Depth
2" (50 mm)
Weight
8.91 lb/ft² (43.5 kg/m²)
Open area
60%
pultrudedCatalog p. 17

SI-7310 · Standard I-bar · 1" (25 mm) deep

Standard I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
1" (25 mm)
Weight
2.7 lb/ft² (13.2 kg/m²)
Open area
73%
pultrudedCatalog p. 17

SI-7315 · Standard I-bar · 1-1/2" (38 mm) deep

Standard I-bar · bearing bars on 1-3/16" (30 mm) centers

Depth
1-1/2" (38 mm)
Weight
3.81 lb/ft² (18.6 kg/m²)
Open area
73%
pultrudedCatalog p. 17

SI-8310 · Standard I-bar · 1" (25 mm) deep

Standard I-bar · bearing bars on 1-7/8" (48 mm) centers

Depth
1" (25 mm)
Weight
1.74 lb/ft² (8.5 kg/m²)
Open area
83%
pultrudedCatalog p. 17

SI-8315 · Standard I-bar · 1-1/2" (38 mm) deep

Standard I-bar · bearing bars on 1-7/8" (48 mm) centers

Depth
1-1/2" (38 mm)
Weight
2.46 lb/ft² (12 kg/m²)
Open area
83%

Work from the information you already have

Selection tasks for design and purchasing
Your taskStart here
Choose a construction for an applicationCompare molded and pultruded grating, then filter the relevant catalog configurations.
Check a drawing or specificationFind the exact designation and depth, then check the load tables and resin guidance. Record clear span separately from overall panel dimensions.
Prepare a purchasing scheduleList finished dimensions and quantities, estimate panel count, and state cutting, clips and destination. Treat the area estimate as a starting point for the cutting layout.
Compare received pricesUse the grating quote comparison to align unit prices, purchased area and delivery costs. Compare the same approved specification before deciding on price.

Use Compare this configuration to add up to three catalog rows. The comparison includes panel sizes and links to the product and calculators. Copy or download the summary to keep the selected designations with your drawings, or carry the comparison into a quote request.

What the comparison tells you

Catalog fields used when comparing grating specifications
FieldUse in the comparison
ConstructionSeparate molded mesh patterns from pultruded bar types before comparing their dimensions.
DepthCompare the catalog grating depth with the available installation depth; check loads and supports separately.
Open areaCompare the catalog percentage of open surface. This does not establish clear opening size, light transmission or accessibility compliance.
Area weightCompare the catalog material weight per square foot and use the weight calculator for the project area.

The comparison reads the same factory-published data as the full catalog size and weight charts. Molded panel sizes belong to their specific mesh and depth row. Pultruded type data describes the bar specification; enter the required panel dimensions in the project schedule.

Catalog values are confirmed in the quote and submittal drawings. To understand the construction difference before filtering, read molded vs pultruded fiberglass grating.

Complete the specification after choosing a catalog row

  1. Record the exact molded mesh or pultruded type, depth and finished panel dimensions.
  2. Check the load and deflection data at the clear span, using the project’s load case and design criteria.
  3. Select resin and surface using the material specification guidance, with chemical concentrations and temperatures stated.
  4. Use the panel quantity calculator and weight calculator to prepare the quantity schedule for a quote request.

Frequently asked questions

Does a matching catalog row mean the grating suits my application?

No. A filter match describes catalog dimensions and properties. It does not check allowable loads, chemical exposure, fire requirements, accessibility or the installation. Review those requirements for the exact product and project.

Can I compare products using open area alone?

Open area is one catalog property. Two products can have a similar percentage but different opening shapes, bar arrangements, depths and weights. Compare the full specification and actual opening requirements rather than using the percentage as an approval criterion.

Request a quote

Send the catalog specification you are considering, together with the layout, load case, service environment and quantities.

Request a quoteOrder a sample
Sources
  1. Strongrate product catalog “Your Best FRP Solution” (Sep 2023), molded specification tables and pultruded summary table, supplied by the site owner (accessed Oct 17, 2026)