FRP Guides

FRP CAD Drawings: Which Files to Request and How to Use Them

In short: When you design with FRP grating, profiles, tanks or covers, you need accurate drawings from the supplier. The most useful formats are DWG and DXF for 2D drawings, STEP (ISO 10303) for 3D models that move between CAD systems, and IFC (ISO 16739) for BIM workflows. A good supplier drawing shows dimensions and tolerances, material and resin, loads, connection details and revision status. FIBROVX provides drawings for our products and for custom designs on request through our Technical Resources page.

FRP CAD Drawings: Which Files to Request and How to Use Them – In short summary: key points at a glance

Table: Common file formats – FRP CAD Drawings — Common file formats. Summary diagram of the table in this guide.

Why CAD drawings matter for FRP

FRP products are often custom: grating panels are cut to fit, profiles are fabricated into structures, and tanks are made to a given capacity and nozzle layout. Drawings let you:

check fit with steel, concrete and equipment;
confirm openings, cut-outs and supports;
coordinate with other trades;
give the fabricator an unambiguous specification.

Common file formats

Diagram: What a good FRP drawing shows – FRP CAD Drawings — What a good FRP drawing shows: summary diagram from this guide.

Format	What it is	Best for
DWG	Native AutoCAD drawing format	2D layouts and details
DXF	Drawing exchange format	Moving 2D geometry between CAD programs, CNC cutting
STEP (.stp, .step)	Neutral 3D format standardized as ISO 10303	Sharing 3D models across different CAD systems
IFC	Open BIM format standardized as ISO 16739	Building information modeling and coordination
PDF	Fixed-layout document	Review, approval and record

Ask for the format your team uses. When in doubt, request a PDF for review plus DWG or STEP for design.

What a good FRP drawing shows

Overall dimensions and tolerances.
Material and resin system, for example vinyl ester molded grating.
Mesh or profile section, with key dimensions.
Loads and spans, where relevant, referenced to the load table used.
Openings and cut-outs, with edge banding or sealing notes.
Connections and fasteners, including clip types and spacing.
Surface and color.
Revision number and date.

How to use supplier drawings

Check the revision. Use the latest approved revision.
Check units. Confirm whether the drawing is in millimeters or inches.
Overlay with your design. Check supports, openings and clashes.
Mark up and return. Send comments before production starts.
Approve in writing. Production should follow the approved drawing.

Drawings for different FRP products

Grating: panel layout, mesh, supports, cut-outs and clips. See the FRP Grating Installation Guide.
Pultruded profiles: section dimensions and properties. See the FRP Pultruded Profiles Guide.
Tanks: general arrangement, nozzle schedule and supports. See the FRP Storage Tanks Guide.
Covers: opening size, frame and class. See FRP Manhole Covers vs Cast Iron.

How to request drawings from FIBROVX

Tell us the product, size, resin and any project details through the Technical Resources page or the Request a Quote page, with the format you need. For custom designs, send your own drawing or sketch and we will return a drawing for approval.

Need a quote or a drawing check?

FIBROVX manufactures FRP products in our own factory in China and builds every item to order: sizes, resin system, color, molds and OEM branding. Send your application, dimensions or drawing, quantity and destination port.

Request a Quote

Diagram: How to use supplier drawings – FRP CAD Drawings — How to use supplier drawings: summary diagram from this guide.

Common mistakes

Using an old revision.
Mixing units. Check millimeters vs inches.
No tolerances. FRP parts have manufacturing tolerances; include them.
Approving without checking openings and supports.
Sending a 3D model without a 2D drawing for approval.

Key terms

General arrangement (GA): Drawing that shows the whole product and its main dimensions.
Revision: A numbered version of a drawing.
Neutral format: A file format that is not tied to one CAD vendor, such as STEP or IFC.
BIM: Building information modeling.

FAQ

Which format should I ask for?

DWG or DXF for 2D, STEP for 3D, IFC for BIM, and PDF for review.

Do you provide drawings for custom products?

Yes. We provide drawings for approval before production.

Can you work from my drawing?

Yes. Send your drawing or sketch with dimensions.

Is there a downloadable drawing library?

We provide drawings on request so that each one matches your exact product and size.

What is a STEP file?

A neutral 3D CAD format standardized as ISO 10303.

Related guides

Sources

ISO 10303 series (STEP), Industrial automation systems and integration: Product data representation and exchange (ISO)
ISO 16739-1, Industry Foundation Classes (IFC) for data sharing in the construction and facility management industries (ISO)
Autodesk, AutoCAD DWG and DXF file formats (Autodesk documentation)