---
title: "FRP Structural Shapes & Fiberglass Beams | Strongrate"
description: "Compare FRP structural shapes and fiberglass beams using catalog sections and weights. Specify member geometry, connections and exposure for a project quote."
url: https://www.strongrate.us/frp-structural-shapes/
markdown: https://www.strongrate.us/frp-structural-shapes.md
published: 2026-10-16
updated: 2026-10-17
---

[Home](https://www.strongrate.us/) › [Fiberglass grating](https://www.strongrate.us/fiberglass-grating/) › [Structural shapes](https://www.strongrate.us/frp-structural-shapes/)

# Pultruded FRP structural shapes

_Updated Oct 17, 2026_

Select an FRP structural profile by its section, span, loading and connections. Strongrate’s pultruded range includes channels, beams, tubes, angles and sheet for project assemblies. Start with the support layout and exposure conditions so the profile and resin can be reviewed together. Products are manufactured in Nantong, China, and ship from China.

## Profile range

- **Channels and beams:** channels, I-beams and wide-flange beams.
- **Tubes:** square, rectangular, round and fluted profiles.
- **Angles and sections:** equal angles, embedded angles and T-shapes.
- **Flat profiles:** flat strip, sheet and kick plates.
- **Decking:** pultruded decking panels.

## Section dimensions and weights

The tables below show selected sections from Strongrate’s catalog. Match the profile dimensions and linear weight to your bill of materials, then include member lengths, quantities and connection drawings with the inquiry. These are catalog options; availability is stated in the quote.

**Selected channels and beams**

| Profile / dimension order | Section dimensions | Linear weight |
| --- | --- | ---: |
| C channel · depth × flange × wall | 2.99" × 1.5" × 0.25" (76 × 38 × 6.4 mm) [note 1] | 1.14 lb/ft (1.7 kg/m) [note 1] |
| C channel · depth × flange × wall | 4.02" × 1.73" × 0.25" (102 × 44 × 6.4 mm) [note 1] | 1.41 lb/ft (2.1 kg/m) [note 1] |
| C channel · depth × flange × wall | 5.98" × 1.65" × 0.25" (152 × 42 × 6.4 mm) [note 1] | 1.83 lb/ft (2.72 kg/m) [note 1] |
| C channel · depth × flange × wall | 7.99" × 2.2" × 0.37" (203 × 56 × 9.5 mm) [note 1] | 3.59 lb/ft (5.34 kg/m) [note 1] |
| Wide-flange beam · flange × depth × wall | 4.02" × 4.02" × 0.25" (102 × 102 × 6.4 mm) [note 1] | 2.41 lb/ft (3.59 kg/m) [note 1] |
| Wide-flange beam · flange × depth × wall | 5.98" × 5.98" × 0.25" (152 × 152 × 6.4 mm) [note 1] | 3.65 lb/ft (5.43 kg/m) [note 1] |
| Wide-flange beam · flange × depth × wall | 7.99" × 7.99" × 0.37" (203 × 203 × 9.5 mm) [note 1] | 7.26 lb/ft (10.8 kg/m) [note 1] |
| Wide-flange beam · flange × depth × wall | 12.01" × 12.01" × 0.5" (305 × 305 × 13 mm) [note 1] | 14.45 lb/ft (21.5 kg/m) [note 1] |
| I-beam · flange × depth × wall | 1.97" × 4.02" × 0.25" (50 × 102 × 6.4 mm) [note 1] | 1.61 lb/ft (2.4 kg/m) [note 1] |
| I-beam · flange × depth × wall | 2.99" × 5.98" × 0.25" (76 × 152 × 6.4 mm) [note 1] | 2.41 lb/ft (3.59 kg/m) [note 1] |
| I-beam · flange × depth × wall | 4.02" × 7.99" × 0.37" (102 × 203 × 9.5 mm) [note 1] | 4.84 lb/ft (7.2 kg/m) [note 1] |
| I-beam · flange × depth × wall | 5.98" × 12.01" × 0.5" (152 × 305 × 13 mm) [note 1] | 9.61 lb/ft (14.3 kg/m) [note 1] |

_Selected sections from catalog pages 31, 32, 33. As printed in Strongrate’s 2023 product catalog; confirmed in your quote and submittal drawings. Confirm the section drawing, tolerances and cut lengths with the quote._

Notes:

1. Selected catalog sizes, not a continuous size range or a stock list; confirm the profile drawing, tolerances and weight for the quoted section.

**Selected tubular profiles**

| Profile / dimension order | Section dimensions | Linear weight |
| --- | --- | ---: |
| Square tube · side × wall | 1.5" × 0.25" (38 × 6.4 mm) [note 1] | 1.03 lb/ft (1.54 kg/m) [note 1] |
| Square tube · side × wall | 1.97" × 0.25" (50 × 6.4 mm) [note 1] | 1.42 lb/ft (2.12 kg/m) [note 1] |
| Square tube · side × wall | 2.99" × 0.25" (76 × 6.4 mm) [note 1] | 2.28 lb/ft (3.39 kg/m) [note 1] |
| Square tube · side × wall | 3.98" × 0.25" (101 × 6.4 mm) [note 1] | 3.10 lb/ft (4.61 kg/m) [note 1] |
| Round tube · outside diameter × wall | 1.26" × 0.13" (32 × 3.2 mm) [note 1] | 0.37 lb/ft (0.55 kg/m) [note 1] |
| Round tube · outside diameter × wall | 1.5" × 0.25" (38 × 6.4 mm) [note 1] | 0.87 lb/ft (1.3 kg/m) [note 1] |
| Round tube · outside diameter × wall | 1.97" × 0.2" (50 × 5 mm) [note 1] | 0.90 lb/ft (1.34 kg/m) [note 1] |
| Round tube · outside diameter × wall | 1.97" × 0.25" (50 × 6.4 mm) [note 1] | 1.12 lb/ft (1.67 kg/m) [note 1] |
| Rectangular tube · long side × short side × wall | 1.97" × 0.98" × 0.13" (50 × 25 × 3.2 mm) [note 1] | 0.58 lb/ft (0.87 kg/m) [note 1] |
| Rectangular tube · long side × short side × wall | 3.94" × 1.97" × 0.2" (100 × 50 × 5 mm) [note 1] | 1.83 lb/ft (2.72 kg/m) [note 1] |
| Rectangular tube · long side × short side × wall | 5.91" × 3.94" × 0.25" (150 × 100 × 6.4 mm) [note 1] | 3.87 lb/ft (5.76 kg/m) [note 1] |
| Rectangular tube · long side × short side × wall | 9.84" × 3.94" × 0.31" (250 × 100 × 8 mm) [note 1] | 6.96 lb/ft (10.36 kg/m) [note 1] |

_Selected sections from catalog pages 32, 33, 34. As printed in Strongrate’s 2023 product catalog; confirmed in your quote and submittal drawings. Confirm the section drawing, tolerances and cut lengths with the quote._

Notes:

1. Selected catalog sizes, not a continuous size range or a stock list; confirm the profile drawing, tolerances and weight for the quoted section.

**Selected angles, flat profiles and decking**

| Profile / dimension order | Section dimensions | Linear weight |
| --- | --- | ---: |
| Equal angle · leg × wall | 1.5" × 0.25" (38 × 6.4 mm) [note 1] | 0.57 lb/ft (0.85 kg/m) [note 1] |
| Equal angle · leg × wall | 1.97" × 0.25" (50 × 6.4 mm) [note 1] | 0.77 lb/ft (1.14 kg/m) [note 1] |
| Equal angle · leg × wall | 2.99" × 0.37" (76 × 9.5 mm) [note 1] | 1.73 lb/ft (2.57 kg/m) [note 1] |
| Equal angle · leg × wall | 3.98" × 0.37" (101 × 9.5 mm) [note 1] | 2.34 lb/ft (3.48 kg/m) [note 1] |
| Flat strip / sheet · width × thickness | 1.97" × 0.16" (50 × 4 mm) [note 1] | 0.24 lb/ft (0.36 kg/m) [note 1] |
| Flat strip / sheet · width × thickness | 4.72" × 0.39" (120 × 10 mm) [note 1] | 1.45 lb/ft (2.16 kg/m) [note 1] |
| Flat strip / sheet · width × thickness | 24.21" × 0.13" (615 × 3.2 mm) [note 1] | 2.39 lb/ft (3.55 kg/m) [note 1] |
| Flat strip / sheet · width × thickness | 48.03" × 0.25" (1220 × 6.4 mm) [note 1] | 9.45 lb/ft (14.06 kg/m) [note 1] |
| Decking · width × depth × wall | 19.69" × 1.57" × 0.2" (500 × 40 × 5 mm) [note 1] | 6.63 lb/ft (9.86 kg/m) [note 1] |
| Decking · width × depth × wall | 19.69" × 2.24" × 0.2" (500 × 57 × 5 mm) [note 1] | 9.88 lb/ft (14.7 kg/m) [note 1] |
| Decking · width × depth × wall | 28.54" × 1.77" × 0.18" (725 × 45 × 4.5 mm) [note 1] | 12.23 lb/ft (18.2 kg/m) [note 1] |

_Selected sections from catalog pages 31, 35, 36. As printed in Strongrate’s 2023 product catalog; confirmed in your quote and submittal drawings. Confirm the section drawing, tolerances and cut lengths with the quote._

Notes:

1. Selected catalog sizes, not a continuous size range or a stock list; confirm the profile drawing, tolerances and weight for the quoted section.

## Typical material properties

**Typical pultruded structural-shape properties**

| Property | Lengthwise | Crosswise | Catalog test method |
| --- | --- | --- | --- |
| Tensile strength | 30.0 ksi (207 MPa) [note 1] | 7.0 ksi (48 MPa) [note 1] | ASTM D638 [note 1] |
| Tensile modulus | 2.49 Msi (17.2 GPa) [note 1] | 0.80 Msi (5.5 GPa) [note 1] | ASTM D638 [note 1] |
| Compressive strength | 30.0 ksi (207 MPa) [note 1] | 14.9 ksi (103 MPa) [note 1] | ASTM D695 [note 1] |
| Compressive modulus | 2.49 Msi (17.2 GPa) [note 1] | 1.00 Msi (6.9 GPa) [note 1] | ASTM D695 [note 1] |
| Flexural strength | 30.0 ksi (207 MPa) [note 1] | 10.0 ksi (69 MPa) [note 1] | ASTM D790 [note 1] |
| Flexural modulus | 1.80 Msi (12.4 GPa) [note 1] | 0.80 Msi (5.5 GPa) [note 1] | ASTM D790 [note 1] |

_Typical material values from catalog page 37. They are not allowable member loads or grating design values. Member span, buckling, connections, environment and the project safety factors need separate design review._

Notes:

1. Typical values for structural shapes as printed, not grating design values.

## Specify fiberglass beams and connected members

Use the section drawing to distinguish an I-beam, wide-flange beam and channel. Similar outside dimensions do not establish equal stiffness or load capacity, and catalog linear weights are not beam load tables. Match each marked member to the assembly drawing and the following order fields.

**Structural-profile schedule and supporting drawings**

| Schedule field | What to identify |
| --- | --- |
| Section | Profile name and drawing, overall depth, flange width, web and flange thickness, and installed orientation. |
| Member | Unique mark, finished length and quantity; use the same mark on the assembly drawing. |
| Structural review | Span, bearing locations, bracing, load cases and serviceability requirements for the responsible designer. |
| Connections and fabrication | Splices, connection plates, holes and cutouts; specify cutting or drilling separately from the length order. |
| Exposure and finish | Indoor or outdoor service, chemicals, concentrations, temperatures, resin requirement, surface and color. |
| Document control | Drawing and schedule revision, delivery location and required date. |

For [walkway and platform framing](https://www.strongrate.us/applications/fiberglass-walkway-grating/), coordinate beam positions with [grating bearing and panel fastening](https://www.strongrate.us/resources/how-to-install-fiberglass-grating/), panel joints, access openings and [handrail attachments](https://www.strongrate.us/frp-safety-products/). Use the [FRP material guide](https://www.strongrate.us/resources/what-is-frp-material/) to check material terminology, then attach the member schedule and connection drawings to the [project quotation package](https://www.strongrate.us/buy-direct/#product-schedule).

## Related pages
- [Fiberglass grating](https://www.strongrate.us/fiberglass-grating/): Choose molded or pultruded grating, stair products and fastening hardware from Strongrate’s factory-listed range.
- [FRP handrails and ladders](https://www.strongrate.us/frp-safety-products/): Factory catalog dimensions for square and round handrails, fixed ladders and rung covers, with installation information for coordinated access assemblies.
- [Molded fiberglass grating](https://www.strongrate.us/molded-fiberglass-grating/): Select molded fiberglass grating by mesh, depth, support layout and exposure. Compare Strongrate catalog configurations, panel sizes and model-specific fire results before preparing a project quote.
- [Stair treads](https://www.strongrate.us/fiberglass-stair-treads/): Choose a molded or pultruded grating tread for the specified stringer supports. Compare nosing details and catalog dimensions, with finished tread capacity checked for the installation.

**Request a quote:** https://www.strongrate.us/request-quote/ · Order a sample: https://www.strongrate.us/samples/ — Send the profile schedule, assembly drawings, quantities and delivery location for a project quote.

## Sources
- Strongrate product catalog (Sep 2023), printed pages 30–37: structural shapes, section sizes and typical properties (accessed Oct 17, 2026)
- Strongrate structural shapes product range (accessed Oct 16, 2026)
- Strongrate FRP square tube: profile applications and selection (accessed Oct 16, 2026)

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Fiberglass (FRP) grating made by NANTONG STRONGRATE CO.,LTD in Nantong, China. Products ship from China. Made in Nantong, China · Ships from China.