Dimensions, weight per meter, and section properties for F1-STRUX stock profiles — I-beams, channels, angles, tubes, flat bars, and rods to EN 13706 and ASTM D3917. This catalog is for engineers who already know the shape and need the numbers; for the complete product family and applications, start with the pultruded FRP profiles overview.
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Published
Apr 4, 2026
Updated
Jul 30, 2026
Author
Yifan Liu, Application EngineerSenior Application Engineer — pultruded FRP structural design and project specification
Technical Review
Haifeng Gong, Ph.D.
Standards and application check
Standards and References
F1 Composite manufactures 114 stock fiberglass structural shapes across the I-beam, channel, angle, square and rectangular tube, round tube, flat bar, and rod families. Each family page below lists the available dimensions, published weight per meter, section drawing, and downloadable datasheets needed for an initial specification.
These pultruded fiberglass structural shapes use continuous E-glass reinforcement and resin systems selected for the service environment. Standard production is controlled to EN 13706 and ASTM D3917 requirements; project engineers should combine the catalog geometry with the applicable material data, load combinations, environmental factors, connection design, and local code checks.
Use the FRP span tables for preliminary member screening, the FRP profile calculator for section-property and design checks, or review the FRP technical data before selecting a stock size. Custom dimensions and fiber architectures are handled through the custom pultrusion program.
Wide Flange Profiles
Sizes: 76×38 mm — 305×305 mm
Up to 75% lighter than steel. Maximum flexural stiffness for walkways, bridges, and platforms.
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L-Profiles
Sizes: 25×25 mm — 152×152 mm
Equal and unequal-leg options. Ideal as stiffeners, bracing, and ledger supports.
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U-Profiles
Sizes: 38×13 mm — 305×89 mm
Versatile open-section framing for cable management and modular assemblies.
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SHS & RHS Profiles
Sizes: 25×25 mm — 240×240 mm
Superior torsional rigidity for columns, trusses, and frame structures.
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Circular Hollow Sections
Sizes: 25 mm — 150 mm OD
Handrails, guardrails, and structural tubes with smooth interior bore.
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Solid Rectangular Sections
Sizes: 12×3 mm — 305×25 mm
Stiffeners, splice plates, wear strips. High-modulus options up to 70% glass.
View all sizes →Our FRP Engineering Advisor answers spec, sizing, and chemical-compatibility questions instantly — and routes complex ones to the right human.
Pre-filled question: “I'm specifying FRP standard profiles (I-beams, channels, angles, tubes). What size do I need for a [span / load / environment] application, and how does it compare to equivalent steel section?”
Quick answers for engineers and procurement teams comparing pultruded fiberglass structural shapes against steel and aluminum options.
For walkways, platforms, and bridges → FRP I-beam (max stiffness). For framing, cable trays, modular skids → FRP channel. For stiffeners, bracing, ledgers → FRP angle. For trusses, columns, frames → FRP square tube (max torsional rigidity). For handrails, antennas, conduits → FRP round tube. For splice plates and rebar → FRP flat bar or round rod. Use our AI sourcing assistant or request a 24-hour engineering review.
Yes. All standard pultruded FRP profiles are produced under ISO 9001:2015 quality management and tested to EN 13706 (Reinforced plastics composites — Specifications for pultruded profiles) and ASTM D3917 (Standard Specification for Dimensional Tolerance of Pultruded Shapes). Mill test certificates are issued per production batch and full third-party test reports are available on request.
Common standard profiles (I-beams, channels, angles, square tubes, round tubes, flat bars, rods in popular sizes) ship from stock in 2–4 weeks for full-container orders, including ocean freight booking. Less-common sizes are produced on a 4–6 week lead time. Custom pultruded profiles requiring new tooling take 6–10 weeks total (3–6 weeks die fabrication + production).
Yes. Pultruded FRP profiles can be cut with a circular saw and carbide-tipped or diamond blade, drilled with carbide bits, and joined with stainless or FRP fasteners. Use of standard steel tools is acceptable; coolant is not required. We supply free fabrication guidelines covering bolt hole edge distances, post-cut sealing of cut edges, and recommended fastener torques.
The global market for pultruded FRP structural profiles includes Strongwell (EXTREN®, USA), Creative Pultrusions (USA), Fiberline Composites (Denmark), Exel Composites (Finland), and large manufacturers based in China. F1 Composite manufactures the complete F1-STRUX structural range — I-beams, channels, angles, tubes, flat bars, and rods — to EN 13706 E17/E23 and ASTM D3917 requirements. Products ship directly from our factory in China without a regional distributor markup.
Yes. F1 Composite's F1-STRUX structural profiles are a direct, standards-equivalent China alternative to EXTREN® (Strongwell), Creative Pultrusions, Fiberline, and Exel — produced to EN 13706 and ASTM D3917 under ISO 9001:2015, with custom-die tooling in 3–6 weeks and factory-direct export to 30+ countries on FOB or DDP terms. See the full comparison: China alternative to Strongwell, Fiberline & Exel.
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