Structural Strengths

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The Structural Pergola Systems design team has been using structural fiberglass on their shade designs for 20 years.  Even as new synthetic material has emerged over the years, we have continued to use this high quality fiberglass material.  The fiberglass beams offer an elegant and unique aesthetic while having the structural qualities that make it the best option for your pergola system.

The Pergola beams can be built using either 4 x 6 or 4 x 8 fiberglass rafters that are finished with a scrolled or square end.  The SPS pergola system has the strength to support additional  materials such as lattice, glass panels, canvas, and our fiberglass shutter walls.   SPS has approved engineering/architectural plans for commercial purposes.

Structural Fiberglass Reinforced Parts (FRP) made by Shakespeare provides the best option for materials made for outdoor structural building product applications.  If you combined the advantages of wood, PVC (vinyl), and aluminum into one product, you would have structural FRP. Our structural FRP beams have the warm natural look of milled painted wood without the disadvantage of rot or the continuous maintenance of wood.

Our structural FRP beams will not require substantial maintenance like PVC (vinyl) and it has substantially more strength than PVC (approximately 6X the stiffness) and substantially less expansion and contraction with temperature (1/6 the expansion/contraction).  Structural FRP also does not lose its strength at high or low temperatures or become brittle as PVC is prone to do.

Our structural FRP beams are high strength like aluminum but are not prone to dents and dings like aluminum and are lighter in weight.  The FRP beams readily accept coatings unlike aluminum and will better stand the test of time.

Structural FRP beams provide the best option for strength and longevity combined with a natural finish.

Spanning Capabilities

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The 24ft spanning capability of Structural Pergola Systems fiberglass beams is what sets it apart from anything else on the market today.   No other synthetic material can compare to the performance of the fiberglass beams that Structural Pergola Systems use for their shade designs.  Structural Pergola Systems’ fiberglass beams can out-span PVC and do not have the maintenance issues of metal systems.

The structural strength of our material enables our designs to span 24 feet without the use of additional columns making it a perfect choice for raised patios, pool areas, club houses, and resort applications.  The material can also support the weight of accessories over these long spans.


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Structural Pergola Systems can provide consultation and design services to help you choose the right accessories for your shade structure. With over 25 years experience in both the residential and commercial markets, we offer a unique perspective allowing us to design the structure of your dreams or help your vision come to life.

SPS Advantages

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Structural Pergola Systems will out-perform all other systems. With the ability to span up to 24 feet for the girders and over 25 feet for the rafters, SPS can design a fiberglass pergola that far exceeds any vinyl, wood or aluminum product and is virtually maintenance free.

Structural Pergola Systems features hollow, thick-walled construction which allows polycarbonate panels, awnings or lattice to easily attach, as well as hiding electric lines, to create the perfect outdoor living space!

Consultation & Design

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Structural Pergola Systems offers an array of services when it comes to your project.  SPS can help bring your design to life with our design services or provide the material for your project as you have had it designed.

Since the fiberglass beams can be manufactured to specific lengths,  the design capabilities are endless.  The design team from SPS has been designing and installing pergolas for commercial projects and residential homes for over 20 years. From modern to traditional design, we are able to supply one of the strongest, most durable pergola systems on the market today.

We can recommend expert installers who are qualified and experienced with our system. If you chose your own installer, the ease of construction with our system will have you enjoying your pergola in no time.

Architecture & Design

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The structural beams are factory finished with a 30 year paint finish which results in a low maintenance product. Choose from many custom beam colors in order to best complement the landscape/project scheme.

The fiberglass will never rust, chip, fade, crack, warp, and has minimal deflection over extremely large spans. You will be able to enjoy the same look from the time the pergola is installed for years to come.

The coating that is applied to Structural FRP Pergola Beams passes the stringent American Architectural Manufacturers Association (AAMA) Specification 623-07 Requirements for Organic Coatings on Fiber Reinforced Thermoset Profiles.  This is the same test that is used by the major window manufacturers certify the performance of their products.  To qualify for this level of performance the coating must exceed testing for adhesion, chemical resistance, and fade resistance.