Fiberglass Columns

Load-Bearing Fiberglass Porch Columns

Fiberglass Column Styles, Sizes, and Specifications

Fiberglass columns can be manufactured or split into different plan types for full column shafts, half columns, pilasters, corner wraps, and other architectural applications.

Fiberglass Column Types Explained 

Fiberglass Columns vs. FRP Column Covers

Fiberglass columns and FRP column covers are both fiberglass-based architectural products, but they are made and used differently. Fiberglass columns are generally cast as full column shafts and are often selected for load-bearing porch columns, porticos, entryways, and replacement column projects.

FRP column covers are usually manufactured in halves so they can be installed around an existing structural post, porch post, lally column, or framed support. They are a better fit when the support is already in place and the project needs a decorative architectural cover instead of a full replacement column.

Once installed and painted, fiberglass columns and FRP column covers can look similar from a distance — but fiberglass columns are used as full structural column shafts, while FRP covers are used to wrap existing supports.

When Should You Choose Fiberglass Columns?

Fiberglass columns are a strong choice when the project needs a full column shaft for load-bearing porch columns, porticos, exterior entryways, and replacement column applications. They are often used when an existing wood column is rotted, damaged, undersized, or being replaced as part of a larger exterior renovation.

Because fiberglass columns are durable, low-maintenance, and resistant to moisture-related problems that often affect wood, they are well suited for exterior porch and entryway projects. They can also be used for interior architectural applications where a classical column profile, custom size, or long-term durability is needed.

Fiberglass columns are available in a wide range of sizes, styles, and plan types to match residential and commercial architectural requirements.

Frequently Asked Questions About Fiberglass Columns

What are fiberglass columns?

Fiberglass columns are composite architectural columns made with fiberglass reinforcement and resin-based materials. They are commonly used for porch columns, porticos, exterior entryways, and replacement column projects where strength, durability, and low maintenance are important.

Are fiberglass columns load-bearing?

Yes. Fiberglass columns can be load-bearing when they are properly sized, specified, and installed for the project. The required column size and capacity should be confirmed based on the structure, height, load requirements, and local building code.

Can fiberglass columns replace rotted wood porch columns?

Yes. Fiberglass columns are commonly used to replace rotted, damaged, or high-maintenance wood porch columns. The existing structure should be properly supported during replacement, and the new column should be selected based on the required load and project conditions.

Are fiberglass columns hollow?

Yes. Most fiberglass columns are hollow column shafts. This makes them lighter than solid stone or concrete while still allowing them to provide structural support when properly specified and installed.

Do fiberglass columns need to be painted?

Yes. Fiberglass columns typically arrive unfinished and should be sanded, primed, and painted after installation so the shaft, cap, and base have a uniform finished appearance.

What is the difference between fiberglass columns and FRP column covers?

Fiberglass columns are generally cast as full column shafts and are commonly used for load-bearing porch columns, porticos, entryways, and replacement column projects. FRP column covers are usually manufactured in halves and installed around existing structural posts, porch posts, lally columns, or framed supports.

Can fiberglass columns be split to wrap existing posts?

Yes. Fiberglass columns can be factory-split or field-split for wrap, pilaster, or corner applications when an existing structural support is already in place. For projects focused mainly on decorative covers around existing posts, FRP column covers or split column wraps may be a better fit.

What sizes and styles are available?

Fiberglass columns are available in round, square, tapered, non-tapered, fluted, smooth, twist-rope, barrel, and recessed-panel styles. Available sizes vary by style and project requirements, with large custom sizes available upon request.

Helpful Resources for Fiberglass Columns

Architectural Columns Overview – compare fiberglass, polymer stone, PVC, FRP, aluminum, and other column materials

Porch Columns – explore load-bearing and decorative porch column options by material

FRP Column Covers – learn about decorative fiberglass-reinforced covers for existing posts and supports

Split Columns – compare split column wraps and covers for porch posts, lally columns, and framed supports

Round Columns – browse round tapered, fluted, non-tapered, barrel, and twist-rope column styles

Square Columns – browse square, fluted, tapered, recessed-panel, and Craftsman-style column options

Column BIM & Revit Families – for architectural modeling and documentation

Column Specifications & CAD Drawings – dimensions, profiles, and technical details

Column Installation Guides – installation information for column projects

Porch Column Wraps & Post Wrap Options – compare PVC column wraps, FRP column covers, and exterior wrap options for covering existing porch posts

Need Help Choosing Fiberglass Columns?

Send us your photos, measurements, drawings, or project details and we can help recommend the right fiberglass column size, style, plan type, and load-bearing option for your project.

Whether you are replacing rotted porch columns, upgrading an exterior entryway, designing a portico, or matching a specific architectural style, we can help you choose the right column configuration.

Call 877-279-9993 or email us to request a quote.