pultrx | Fiberglass rectangular tube Product: https://pultrx.com/frp-profiles/fiberglass-rectangular-tube Updated: 2026-10-22 Contact: inquiry@pultrx.com A fiberglass rectangular tube is a hollow glass fiber reinforced polymer section with two different nominal outside side dimensions. Also described as a GRP or glass fibre box section, it needs a complete width, height and wall specification. A single published width cannot identify the part, its internal opening or its installed orientation. Product family: https://pultrx.com/frp-profiles/fiberglass-tubes Manufacturer: Henan Zhongsheng Composite Material Co., Ltd. Export partner: pultrx, Shanghai, China Catalogue figures are references, not a binding offer. Confirm the configuration, inclusions and acceptance criteria in the written quotation. TBD means not confirmed, never zero. CONFIGURATIONS Configuration SPECIFICATIONS Order convention: Configuration = Width × height × wall × cut length; mark installation orientation Complete available cross-section: Configuration = TBD — ask factory (The manufacturer listing omits the second outside side. No complete SKU can be inferred.) Bore, corner radii and tolerances: Configuration = TBD — ask factory Material formulation and mechanical evidence: Configuration = TBD — ask factory Minimum quantity and lead time: Configuration = TBD — ask factory SOURCE Henan Zhongsheng — rectangular tube catalogue: https://www.frpzs.com/FRP-Profiles/Fiberglass-Tube/Fiberglass-rectangular-tube.html Manufacturer page reviewed 2026-10-22. Rectangular form is supported, but its incomplete dimensional listing cannot establish an orderable section. SELECTION - Define both outside sides: Label width and height directly on the drawing. If a supplier reverses their order in a quotation, reconcile the labels before acceptance rather than relying on a text size description. - Show the installed orientation: Identify which face is vertical and where loads and connections act. Turning the section changes its geometry relative to the assembly; do not approve rotation as a cosmetic change. - Control the internal envelope: An insert needs two clear dimensions and corner clearance. Indicate whether it enters from one or both ends and whether internal obstructions from fasteners are permitted. A complete rectangular section needs two sides | Order detail | Why it needs its own drawing reference | | --- | --- | | Width and height | The source provides only one outside-side range; request the missing dimension instead of assuming a square section. | | Long and short faces | Hole patterns and mounting clearances must refer to the intended face. | | Internal opening | Specify both clear dimensions, corner geometry and insertion length. | | Installed orientation | Show the mounting direction and identify the design review required for a rotated substitute. | A rectangular outline does not establish superiority over a round or square tube. Compare complete sections under the actual loading and support arrangement using product-specific properties. The supplier catalogue supports the product form, but does not provide enough geometry to select a finished part or establish allowable load. Record any drawing changes in the order revision history. TECHNICAL REFERENCES - Henan Zhongsheng rectangular tube product reference: https://www.frpzs.com/FRP-Profiles/Fiberglass-Tube/Fiberglass-rectangular-tube.html — The second outside dimension is absent; no complete section or performance rating is inferred. External references explain selection principles; they do not qualify the offered product or transfer another manufacturer's ratings. PRODUCT FORMS AND CATALOGUE EXAMPLES - Rectangular hollow section to a complete dimensioned drawing APPLICATIONS TO REVIEW - Frame members subject to project design - Bracketed assemblies requiring distinct long and short faces PROCESS TO REVIEW - Complete the section schedule: List width, height, wall, cut lengths and quantities with units. - Resolve orientation and interfaces: Confirm long-face drilling, end datums and insert clearance with the factory. - Approve the proposed sample: Check the intended assembly orientation and record accepted dimensional deviations. - Verify the production lots: Match drawing revision, part labels and inspection results before dispatch. CORE SCOPE TO SPECIFY - Finished rectangular tubes matching the accepted drawing revision and quantities - Agreed packing, part labels and batch inspection documents OPTIONS AND SERVICES TO PRICE SEPARATELY - Long-face or short-face machining, samples and assembly testing - Custom tooling, additional documentation and freight as agreed RFQ INPUTS — complete these before requesting a quotation - Both outside dimensions, wall and corner details - Installed orientation and long/short face labels - Hole datums, inserts and end-access requirements - Loads, exposure and required material documentation - Cut-length quantities, packaging, destination and delivery request ACCEPTANCE EVIDENCE TO AGREE - Measure width and height separately against the approved drawing. - Verify wall and corner clearance at agreed locations. - Check holes on the correct face and from the specified end datum. - Inspect twist, straightness, cut ends and lot traceability. COMMERCIAL ITEMS TO CONFIRM Applicable performance and destination requirements; lead time in working days; payment milestones; warranty party, term and exclusions; packing, Incoterm and delivery destination. For equipment, include plant power and spare parts. QUESTIONS Can the published width identify a rectangular tube? No. The second outside side and wall are needed, along with corner details where fit matters. Ask for a complete section drawing before placing an order. Can I rotate the section to suit a bracket? Submit the revised orientation for review. Confirm mounting clearances, load direction and connection details before changing the accepted assembly. RELATED RESOURCES Compare all fiberglass tube forms: https://pultrx.com/frp-profiles/fiberglass-tubes Compare fiberglass round tube: https://pultrx.com/frp-profiles/fiberglass-round-tube Compare fiberglass square tube: https://pultrx.com/frp-profiles/fiberglass-square-tube Prepare a finished-profile RFQ: https://pultrx.com/guides/frp-profile-rfq-checklist Review the manufacturer and plan a factory audit: https://pultrx.com/manufacturing-partner Prepare an enquiry: https://pultrx.com/contact?interest=frp-profile&product=Fiberglass%20rectangular%20tube