Fiberglass vs Plastic Pergolas
Both fiberglass and plastic pergolas offer the benefit of a low maintenance outdoor structure. There are two types of plastic pergolas currently available, the first and most common is constucted from vinyl(also known as PVC). The second type of plastic pergola is constructed from a material similar to composite decking(Azek or Palite). These are low maintenance materials, however they differ significantly in terms of quality, lifetime and finish. Below is a detailed comparision of these materials.
Fiberglass
* Maintenance free
* Available in any color
* Structural material with free-spans of up to 20'
* Will not mildew, mold or yellow
* One piece CNC rafter tails
Vinyl
* Low maintenance but will mildew and yellow over time
* Non-structural vinyl tubes
* Pressure treated lumber is inserted into the vinyl and can sag, twist and rot
* Available in a limited number of colors
* Snap-on rafter tails
Azek
* Requires bi-annual painting
* Yellows and mildews over time
* Sheets of Azek are glued to either aluminum or lumber for structural support
* Azek will delaminate and fall of over time
* High cost of ownership
Comparison Chart
| Fiberglass | PVC(Vinyl fencing) | C-PVC(Azek) | |
|---|---|---|---|
| Maintenance: | Maintenance free. | Maintenance free. Will yellow & mildew. | Requires bi-annual painting. Will yellow & mildew. |
| Finish: | Available in any color | Limited color options | Limited color options |
| Durability: | Hard industrial coatings. Durable cast fiberglass column bases. | Scratches easily. Plastic post bases break easily | Azek delaminates and fall off over time |
| Lifespan: | Designed to last a minimum of 15 years | Minimum of 5 years | Minimum of 5 years |
| Structural Properties: | Structural fiberglass pultrusions will not sag or warp. | Structural pressure treated core. Prone to sagging and warping. | Structural pressure treated core. Prone to sagging and warping. |
Azek Pergola Fail
Mildew
This Azek pergola was poorly constructed. It experienced yellowing, excessive rot and sagging as a result of the manufacturer cutting corners.
Beams
This what the main structural support beam looked like when the Azek fell off and the remainder was removed.
Baldwin to the rescue!
The client's contractor reached out to us and we replaced the existing structure with a fiberglass pergola that will last for years to come.
Testimonials
John MitchellThe finished pergola is stunning. We've already received many complements.
Jeff RiddellAs a cabinetmaker and woodworker, I send you kudos on your system, the communication that we've had, the quality of the product. It's a pretty simple kit that arrived and it installs just about as easily as your website suggests. On a personal level, it's really cool to make connections with other people that have the same sense of pride in their work. This stuff is as much about service as it is product.
Tom PetitMatt, I just wanted to let you know how pleased I am with the new pergola. As a woodworker I appreciate the precision and thoroughness of the kit. I installed the cement pads the previous weekend and did the entire remaining installation in about 6 hours the following weekend with one helper. Very nice looking and I know I am going to enjoy the long term benefits of using a fiberglass products. I will send you a photo as soon as I finish the 10' dining table and benches that I am building to complete the pergola/dining area.
John MitchellI was worried that the joints would swell and be difficult to assemble in the rain. I had very little difficulty. They went together very well. The workmanship on the parts was excellent.
Jim JohnsonMax, What's the status on the wood that I ordered for the stairs? By the way, the pergola went up without a hitch. Very nice. Looks great and was a joy to assemble.
James and Marlene HauflerI recently purchased a pergola kit from Baldwin Pergolas. It was a large custom pergola measuring about 16 by 36 feet. I am totally happy with the materials, workmanship, and customer support provided by Baldwin Pergolas. My wife and I were able to assemble the pergola over the course of a few days. (With a little help from two neighbors on the first day.) We found that everything fit together exactly as planned. Everyone who has seen the pergola, including our neighbors, and the building inspector (!), has been very impressed with the design of the pergola, the quality of the materials, and the precision of its construction. Their comments have included "beautiful", "amazing" and quite a few "wows" ! Our experience with Baldwin Pergolas has been completely positive. Their personal commitment to quality shows in everything they do. Thank you, James Haufler Sparks, Nevada
Jon ZHi Click, I mean Max! You were right, 7" falls exactly where we were hoping it would on the siding. No chganges necessary, You are the king of pergolas!
David PetersonI am very happy with your product and now know where to go when I need a pergola. It was a pleasure speaking with you and I wish you much success with your growing business.
Lynne HanrahanThe construction went flawlessly. Everything fit together perfectly, we didn't have to "tap" one purlin or rafter into place, they just seemed to fit. Thank you for all the help and instruction. We absolutely love, love, love it. It seems to fit perfectly on our patio and I know that we will enjoy it for many years to come. We would do this again in a heartbeat! I'm sending you pictures of the process and the finished product.
Jeff VeasmanThank you my friend, we just got done with the big pergola, it took longer to run the wires than it did to put the pergola together. It is freakin sweet Max, oh and by the way Deana Martin, Dean's daughter lives next door we did a three story add on for them but she said it looks spectacular. Thanks again Max, I'll be sending some pics.
"First, man defines his architecture. Forever after, his architecture defines him."
It's been a tremendous honor to design and build these fantastic structures for our customers. We look forward to upcoming challenges and the beauty they bless us with.
© 2026 Baldwin Pergolas, Baldwin Lawn Furniture.