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How to Specify a Pultruded FRP Profile

A practical checklist covering application, geometry, material system, quantity and delivery requirements.

Technical articleJuly 10, 2026Buyer resource
How to Specify a Pultruded FRP Profile
Technical resource illustration
Why this matters

Use this checklist to turn a general profile request into a scope that can be reviewed, quoted and reordered more clearly.

Start with the application

Explain where the profile will work, what function it performs, what it is exposed to and how it connects to the surrounding structure. Dimensions alone do not define the material system or project suitability.

Describe the service environment

List moisture, named chemicals and concentration, temperature, UV exposure, cleaning conditions and any electrical, fire/smoke or project-standard requirements. Identify which exposures are continuous and which are occasional.

Define geometry and structural inputs

Provide the cross-section, wall thickness, cut length, critical tolerance, load, span, support spacing, allowable deflection and connection details supplied by the responsible designer. A DWG, DXF or dimensioned PDF reduces interpretation risk.

Include commercial and delivery inputs

State the sample need, first-order quantity, expected annual demand, target schedule, processing, packing length and destination. These inputs influence tooling, production planning and export packing.

Key takeaways

  1. Application and environment come before catalogue selection.
  2. Mark critical dimensions and the structural inputs supplied by the project engineer.
  3. Quantity, processing and destination belong in the first quotation brief.

Related products and resources

Technical responsibility noteThis article provides manufacturing and application-review guidance. Final structural design, code approval and certified engineering calculations remain with the buyer or responsible project engineer when required.
Project support

Need help applying this to your FRP project?

Send the application, drawing, dimensions, environment and quantity. Haikuo will help identify the next manufacturing and quotation questions.

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