Bi-Fold Doors

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Maximum size tested 400 x 124” with (+70/-70)

SIW Folding doors Opens the View

SIW folding door systems combines aesthetics with performance and versatility to create ideal solutions for the modern home. SIW Flush panel folding door applications, accommodates large openings and ensures smooth operation. Other solutions include our signature Twin Bolt Lock and Lever Compression lock for our folding doors.

Product Specifications

  • White & Bronze Frames are the standard choices but various Woodgrain Colors, Clear Anodized & Custom Colors are available at an additional cost.
  • Standard Residential & ADA Sill.
  • 7/16″ Laminated Impact Glass for full panels and 1″ Insulated Impact Glass for True Divided Lites.



SIW offers an extensive list of hurricane resistant impact products such as bi-fold doors and windows. We make it known that everything we offer provides the greatest benefits. There’s virtually no reason not to choose from SIW’s wide variety of impact windows and bi-fold doors.



At SIW, we provide the finest of impact bi-fold door options. We believe in providing versatility and different looks. You shouldn’t have to make your house look a certain way just because you want to reap all of the benefits of impact products. We understand this, which is why we make it a point to allow room for creativity when it comes to our bi-fold doors.

Having hurricane resistant impact windows and bi-fold doors is a great idea for those seeking a beautiful look, safety and resistance for part of their home. The advantages that SIW bi-fold doors provide are enormous. If you’re considering adding any type of impact product to your home, then be sure to check out our bi-fold doors!



Allows More Space

Bi-fold doors are incredible, with their unique structure and design. An alternate option to tradition impact sliding glass doors, our hurricane resistant bi-folding doors slide as if they are regular sliders but also have its panels fold over. Because of this type of structural design, these bi-folds allow for the appearance of more space when stacked. It can really open up a room or provide the perception of a wider patio.

Best Options

To some people it can be obvious as to why they favor impact bi-fold doors. To put it simply, there is such a large variety of choices for bi-fold doors. The colors for the hurricane resistant bi-fold doors come in white and bronze frames. However, there is a list of options for wood-grain colors as well as clear anodized and custom colors. The options really are limitless when it comes to SIW bi-fold doors.

Ideal Protection

Anybody who is looking into purchasing SIW impact bi-fold doors and windows should know about the exceptional features our products have as far as safety is concerned. Our bi-fold doors are not only equipped to resist hurricane winds approaching up to 390 miles an hour, but they also are remarkable at resisting break ins. The impact glass used in our bi-fold doors iss so strong and thick with double glazing panes that it is near impossible for breaking and entering to occur.

Saves Energy

Like our impact windows and french doors. SIW bi-fold doors do not absorb the light coming from outside and reduce of heat transferred to the inside of your home. Our bi-fold doors are insulated well enough to keep the cool air in and the hot air out. As a result, you will be able to save on your electric bill due to the air conditioner not needing to constantly work to fight off heat.