Fiberglass rods (solid FRP)
Solid pultruded fiberglass round rods for cut lengths and fabricated blanks. Compare catalog diameters and weights, then specify the fit, end machining, material and service conditions for your part.
- A
- 491 mm²
- Ix
- 1.9 cm⁴
- Mass
- 0.89 kg/m
Overview
Choose a rod material or section
Need carbon reinforcement? Explore solid pultruded carbon fiber rods, including 3/8-inch diameter inquiries. Carbon rod specifications are reviewed separately from the fiberglass catalog below. For a solid section with flat locating faces, see fiberglass square rods.
A solid round rod provides a constant-section blank for a fabricated part. Start with its diameter and cut length, then identify the surfaces that control fit, any drilled or machined ends, and the loads and environment it will see.
State whether you need a plain length or a finished component. Use the purpose-specific routes alongside this page for stakes, reinforcement, anchoring and electrical parts, where the surface, fittings and acceptance requirements form part of the product specification.
- Solid round section
- Specify diameter and fit
- Machining to agreed drawing
- 6 m lengths or cut to size
Solid fiberglass rod sizes 16 catalog sizes
| Model | Drawing and quote | ||||
|---|---|---|---|---|---|
| Rod Ø6 | 6 | 0.05 | 28.27 | 0.006 | DXFQuote |
| Rod Ø8 | 8 | 0.09 | 50.27 | 0.02 | DXFQuote |
| Rod Ø10 | 10 | 0.14 | 78.54 | 0.049 | DXFQuote |
| Rod Ø12 | 12 | 0.21 | 113.1 | 0.102 | DXFQuote |
| Rod Ø13 | 13 | 0.24 | 132.7 | 0.14 | DXFQuote |
| Rod Ø16 | 16 | 0.37 | 201.1 | 0.322 | DXFQuote |
| Rod Ø19 | 19 | 0.52 | 283.5 | 0.64 | DXFQuote |
| Rod Ø20 | 20 | 0.57 | 314.2 | 0.785 | DXFQuote |
| Rod Ø22 | 22 | 0.69 | 380.1 | 1.15 | DXFQuote |
| Rod Ø25 | 25 | 0.89 | 490.9 | 1.917 | DXFQuote |
| Rod Ø28 | 28 | 1.12 | 615.8 | 3.017 | DXFQuote |
| Rod Ø30 | 30 | 1.29 | 706.9 | 3.976 | DXFQuote |
| Rod Ø32 | 32 | 1.47 | 804.2 | 5.147 | DXFQuote |
| Rod Ø38 | 38 | 2.06 | 1,134 | 10.24 | DXFQuote |
| Rod Ø40 | 40 | 2.29 | 1,257 | 12.57 | DXFQuote |
| Rod Ø50 | 50 | 3.57 | 1,963 | 30.68 | DXFQuote |
Catalog dimensions identify standard section options, not live inventory. Confirm tooling, material, quantity and production timing in the quotation.
A diameter not listed: custom pultrusionNeed a hollow section: fiberglass round tube
Properties
Material reference · E23-ISO
Published reference values for the general-purpose isophthalic polyester laminate. Match the section, formulation and supporting documents before selecting design values for an order.
| Property | Reference value | Method reference |
|---|---|---|
| Tensile modulus (longitudinal)EN ISO 527-4 | 23 GPa | EN ISO 527-4 |
| Tensile modulus (transverse)EN ISO 527-4 | 7 GPa | EN ISO 527-4 |
| Tensile strength (longitudinal)EN ISO 527-4 | 240 MPa | EN ISO 527-4 |
| Flexural strength (longitudinal)EN ISO 14125 | 240 MPa | EN ISO 14125 |
| Interlaminar shear strength (ILSS)EN ISO 14130 | 30 MPa | EN ISO 14130 |
| Pin-bearing strength (longitudinal)EN 13706-2 Annex E | 150 MPa | EN 13706-2 Annex E |
| DensityEN ISO 1183 | 1.9 g/cm³ | EN ISO 1183 |
| Glass contentEN ISO 1172 | 65–70% by weight | EN ISO 1172 |
The listed moduli, tensile and flexural strengths, and pin-bearing strength use EN 13706-3 E23 minimums. ILSS, density and glass content are the published E23-ISO material references. These values and method names do not constitute a test report for the selected profile. Full property table and test methods
For a rod inquiry, identify the diameter, reinforcement, resin and surface condition together. Request the data and acceptance criteria that apply to that configuration and the finished part.
Resin routes to review
- Isophthalic polyesterThe E23-ISO reference uses this resin family. Confirm its suitability for the profile and service conditions.
- Fire-retardant polyesterState the required fire test and classification, then confirm evidence for the offered formulation and specimen scope.
- Vinyl esterA candidate for chemical exposure. Provide the chemicals, concentrations, temperatures and exposure duration; specify fire requirements separately.
- PolyurethaneReview the proposed profile, processing route and mechanical requirements with the supplier.
- PhenolicA route to evaluate where fire, smoke or toxicity criteria apply. Confirm manufacturability and the relevant test evidence.
A change of resin, reinforcement, pigment or surface finish can change the applicable properties and evidence. Confirm the grade and reports for the offered configuration. Compare resin systems
Documents
- Data sheet16 sizes · web page
Rod datasheets
- Issued by
- F1 Composite
One page per size: dimensions, calculated section properties, E23 laminate data and, where published, allowable load by span.
- CADDXF · 16 sizes
Rod section drawings
- Issued by
- F1 Composite
Dimensioned cross-sections that open in AutoCAD, DraftSight or LibreCAD. Download one from its row in the size table; no login or email.
- Data sheetPDF · 3 MB
FRP Profile Design Manual — DOC-PF-2026-EN Rev. B
- Issued by
- F1 Composite
- For
- Structural shapes
Revision B (October 2026), generated from the website's catalog, laminate and design-basis data: EN 13706 E23 laminate values beside the grade minimums, section properties of all 114 catalog sizes, allowable uniform loads to the published LRFD screening basis, application guides, durability stated by resin formulation, fabrication and inspection. A preliminary-sizing reference, not a project approval or batch certificate; it supersedes the withdrawn Rev. A.
- CertificatePDF · 142 KB
EPD & Carbon Footprint — Pultruded GFRP Composite Profiles
- Issued by
- CABR
- For
- Standard profiles
Unofficial English summary of the environmental product declaration and carbon footprint analysis for pultruded GFRP composite profile products, with 1 m² functional unit. Calculation reference CABR-CFC-01(02)-2025(20030)1, cradle-to-gate 33,934.34 g CO₂e/m², distribution 254.59 g, cradle-to-grave 36,099.32 g. Standards: GB/T 24025-2009 (ISO 14025-aligned Type III EPD), GB/T 32161-2015, ISO 14067, PAS 2050. Issued by China Academy of Building Research Co., Ltd. (CABR) Certification Center on April 30, 2025. The original Chinese documents, with the holder and scope, are provided on request.
- CatalogOn request
Product Catalog 2024
- Issued by
- F1 Composite
- For
- All products
Complete catalog of standard pultruded FRP profiles with dimensions, properties, and ordering information.
- CertificateOn request
ISO 9001 Certificate
- For
- All products
Request the current quality-management certificate with its edition (ISO 9001:2015, or ISO 9001:2026 after transition), holder, validity and scope for your proposed supply.
- CertificateOn request
CE Declaration of Performance
- For
- All products
Request product-specific performance and applicable conformity documentation; confirm the intended use and assessment route.
Questions buyers ask
Do these fiberglass rod specifications also apply to carbon fiber rods?
No. The catalog sizes, weights and glass-fiber material reference on this page describe fiberglass rods. Carbon fiber rods use a different reinforcement and need their own diameter, resin, tolerance and property confirmation. Use the carbon fiber rod page to specify a solid CFRP rod, including a 3/8-inch (9.525 mm) diameter inquiry.
Should I use a solid fiberglass rod or a hollow round tube?
Use a solid rod where the part is small in diameter, is machined, threaded or pinned through, or must resist crushing at clamps and fittings. Use a round tube where bending stiffness per kilogram matters, because moving material away from the center raises the moment of inertia for the same mass. Compare A, Ix and mass per meter for both in the profile finder, then confirm the finished part's loads and fittings.
What are pultruded FRP round rods used for?
This page covers solid round profile lengths and blanks for further fabrication. Specify the diameter, cut length, fit, end details and service conditions for your part. Plant stakes, concrete reinforcement, rock bolts and electrical components have their own purchasing and qualification requirements; use the linked product routes for those inquiries.
Which material properties should I request for an FRP rod?
Request properties for the proposed rod, reinforcement and resin formulation, including the test direction and specimen conditions. The E23-ISO table on this page is a material reference, not measured performance for every catalog diameter. Agree the relevant strength, stiffness and acceptance evidence before using values for final design.
Can a standard rod be ordered as an electrical insulation core?
An insulation core or live-line tool component requires its own material, surface, end-fitting and test requirements. A catalog diameter or a generic non-conductive material description does not establish suitability. Send the component drawing and qualification basis through the relevant electrical product route.
Can FRP round rods be used as rebar in concrete?
Concrete reinforcement should be specified through the FRP rebar route. Rebar requires an identified reinforcement product, bond surface, mechanical properties and acceptance basis. Adding a coating or winding to an ordinary rod does not by itself qualify it as rebar. Rock bolts likewise need an agreed anchoring assembly and project requirements.
Quote FRP round rods
Send the rod diameter, cut lengths, quantities and part drawing, with the intended service and delivery destination. We reply within one business day; a formal quotation follows once the specification and delivery are reviewed.
- Diameter and fit
- Nominal diameter, tolerance, straightness and mating-part requirements.
- Cut length and machining
- Lengths, end details, holes and responsibility for further fabrication.
- Material and acceptance
- Loads, environment and the properties or inspections required for the part.
- Quantity and destination
- Quantity by length, repeat demand and delivery location.