<iframe title="Google Tag Manager" src="https://www.googletagmanager.com/ns.html?id=GTM-8CXX" height="0" width="0" style="display:none;visibility:hidden"></iframe>
Skip to Content
cross section of pella fiberglass window material with callouts

Pella Fiberglass vs. Jeld-Wen Vinyl

Rigid Strength vs. Flexible Plastic

When it comes to selecting the right window material, you need the best. See how our proprietary fiberglass outperforms Jeld-Wen vinyl.

Won't Bend
On average, Pella fiberglass is
10x

stronger than Jeld-Wen vinyl in a bend test.36

Won't Dent
On average, Pella fiberglass is
1.8x

more impact resistant than Jeld-Wen vinyl.35

Won't Break
On average, Pella fiberglass is
13.4x

the tensile strength of Jeld-Wen vinyl.37

Pella Fiberglass Beats Out Jeld-Wen Vinyl

Pella’s exclusive fiberglass material is the strongest material for windows and patio doors, engineered for lasting durability.9

As much as the competition in a bend test, which measures the flexural strength of a material by applying force via a single, concentrated load point in the middle.

Loading

3-point bend testing performance based on testing 7 samples of each material using ASTM D790 test methodology.

The Strongest Material vs. Bendable Vinyl

Look behind the scenes and see what makes up Pella’s proprietary fiberglass and Jeld-Wen’s vinyl.

a close view of pella's fiberglass material

Pella Fiberglass, strong thermoset

Our exclusive fiberglass is an incredibly strong thermoset material, meaning it won’t melt or breakdown when exposed to environmental temperature swings. It won’t dent, bend or break as much as the competition and can handle the most extreme heat and cold.32

thermoplastic material representing the Jeld-Wen vinyl windows

Jeld-Wen, flexible thermoplastic

Unlike fiberglass, vinyl is a thermoplastic material, meaning that when the plastic is heated it becomes a soft material and it hardens upon cooling. This material is more prone to bending, sagging and bowing in the heat of the summer and can become brittle in cold winter months.

Find the Right Product For Your Project

Work with a dedicated Pella representative every step of the way. 

I'm a ProI'm a Homeowner
pella rep helping a window customer
Real Examples of Our Superior Strength

01:34

10-pound bowling ball impact

We decided to take things to extremes to demonstrate how well our exclusive fiberglass material holds up to impact. We dropped a 10-pound bowling ball onto a section of our fiberglass sliding patio door jamb lineal (the frame of your door) – from seven feet in the air – to see what would happen.

testing material by dropping a volleyball onto a piece of fiberglass material
10-pound bowling ball impact
Now Playing
testing material by hanging a pickup truck from a window frame
Lifting a 6,600 lb. pick-up
testing material hanging cinder blocks off a piece of fiberglass frame
The weight of 1,000lbs of concrete blocks
See How Our Fiberglass is the Best Fiberglass for Your Project
Pella vs Andersen

100% Fiberglass vs. Plastic, Wood Fibers and Glue

Pella vs Marvin

Strategic Woven Fibers vs. Basic Random Fibers

Pella vs. Milgard

Strategic Woven Fibers vs. Basic Random Fibers

woman with white blouse using the easy slide operator on a casement window
GET THE BEST FIBERGLASS WINDOWS & PATIO DOORS

Designed to stand up to everyday wear and tear, Pella Impervia products offer an on-trend color palette, including black, and feature our latest innovation, the Easy Slide Operator window hardware, winner of Best in Show at the 2021 International Builders Show.

Explore Additional Product Details

Ready to take the next step?

Work with a dedicated Pella representative every step of the way.

I'm a ProI'm a Homeowner