Finished FRP product
Fiberglass I beam
A fiberglass I beam is a composite section with two flanges joined by a central web. Its overall depth and flange width describe the envelope, while web thickness, flange thickness and root geometry complete the section. FRP or GRP I-beam procurement also requires the installed span, restraints and connection details; a catalogue dimension is not a load rating.
Download spec sheet & RFQ checklist (.txt)Illustrative section · not to scale
Selection notes
Which dimension is the depth?
What controls the span?
Choose the configuration
What to resolve before selecting this product
Which dimension is the depth?
Label overall depth and flange width on the drawing. Keep web and flange thickness separate even when a catalogue uses one wall value; include root radii and hole locations.
What controls the span?
Provide support positions, load locations, restraint and allowable deflection. Identify sustained or moving loads so the designer can request suitable material evidence and assess service behavior.
How does force enter the beam?
Show bearing lengths, support plates and bolted joints. Local bearing and connection checks need their own details; an overall bending assessment does not by itself settle these interfaces.
Evidence and purchasing requirements
Keep section identification and structural acceptance separate
| Review item | Required project input |
|---|---|
| Section geometry | Depth, flange width, web/flange thickness, radii and orientation. |
| Deflection and stability | Span, loads, service limits and restraint arrangement. |
| Local bearing and joints | Contact lengths, plates, holes and connection load paths. |
The listed inch dimensions are catalogue examples, not an allowable-span table. Strongwell explains that pultruded members have directional properties and that structural assessment must consider stiffness. Its EXTREN properties belong to that product system and are not adopted here. Request evidence for the offered Zhongsheng material, then have the project designer assess the actual beam and connections.
Sources and scope
- Henan Zhongsheng I-beam catalogue
- Strongwell structural-shape introduction
General engineering context, not supplied-beam qualification.
Specification
Configuration table
Published catalogue values are reference figures; the agreed configuration and acceptance criteria belong in the quotation. Unconfirmed values are marked TBD · ask factory.
| Parameter | Specification / requirement |
|---|---|
| Catalogue examples: width × heightSource examples only; confirm web/flange thickness separately. Neither stock availability nor a full capability range is established. | 1½ × 3, 2 × 4 and 3 × 6 inches with listed wall ¼ inch; 4 × 8 inches with listed wall ⅜ inch |
| Quoted section tolerances and material | TBD · ask factory |
| Allowable loads and deflection criteria | TBD · ask factory |
| Minimum order and production lead time | TBD · ask factory |
Reference: Henan Zhongsheng — I-beam dimensional examples. Henan Zhongsheng I-beam catalogue reviewed 2026-10-22. Width × height ordering retained; examples do not establish project suitability. Updated .
Supply workflow
From product specification to delivery
Use these stages to define responsibilities, interfaces and the evidence needed at handover.
- 01
Submit geometry and design inputs
Provide the beam schedule, installation sketch and support details with environmental requirements.
- 02
Review the offer
Confirm the section, material evidence and engineering responsibilities before accepting a proposed substitution.
- 03
Agree production acceptance
Set dimensional checks, required reports, payment, delivery and conformity responsibility in the quotation.
Scope of supply
Define the supply package and its options
Request an itemized quotation against these lists. A catalogue description does not confirm that every item is included.
Product and work to specify
- Finished beams to the accepted section and length schedule
- Agreed inspection documents and shipment identification
Options and services to price separately
- Connection plates, drilling, special cuts and assembly
- Engineering, project tests, samples, tooling and freight
Applications
Applications to discuss with engineering
- Frame and support members subject to project engineering review
Cross-sections
Product forms and catalogue examples
- Pultruded I sections with drawing-confirmed web and flanges
Prepare your enquiry
Send an enquiry that can be quoted
Include the drawings and requirements below so engineering can confirm the configuration, exclusions and lead time.
Include in your RFQ
- Depth, flange width, both thicknesses and cut quantities
- Span, restraint, loading and deflection limits
- Bearing surfaces, joints and hole drawings
- Service environment, finish and documentation requirements
Agree the acceptance evidence
- Measure depth, width, web and flange thickness against the approved drawing.
- Check straightness, cut length and holes using agreed methods.
- Review lot traceability and contracted material evidence separately from project design approval.
Commercial terms
Who you contract with
- Manufacturer
- Henan Zhongsheng Composite Material Co., Ltd.
- Warranty party and term
- Henan Zhongsheng Composite Material Co., Ltd.; term and coverage confirmed in the written quotation.
- Contracting party and exporter of record
- pultrx, Shanghai, China
- Incoterms
- FOB Chinese port by default; CIF/DAP on request
- Payment
- Agree milestones for specification approval, any required samples, batch inspection and shipment. Exact split on the quotation.
- Third-party inspection
- SGS, BV or TÜV pre-shipment inspection accepted, cost borne by the buyer
- Performance and inspection
- Specify the intended use, design loads, environment and applicable test methods. Confirm material data, dimensional tolerances and required inspection reports for the quoted product; catalogue examples do not establish project approval.
- Order quantity and lead time
- Confirm minimum order quantity, cut lengths, packing and working days from specification approval. Availability is established in the quotation.
FAQ
Questions buyers ask
- Can I select this beam from a steel span table?
- No. Use an engineering assessment based on the offered composite material, geometry and actual support conditions.
- Are the example sizes available from stock?
- Stock is unconfirmed. Request written availability, minimum quantity and lead time for the selected drawing and material.
Send a cross-section drawing. Get a scoped quotation.
Every quotation names the manufacturer, the exporter of record and the warranty party, and lists what is included.