PGT Commercial
Impact Rating LMI
Made in Florida
PGT Aluminum Clipped Tube Mullion
PGT's aluminum impact storefront and entrance door system for mid-rise commercial envelopes.
Cross-brand structural mullion for ganged multi-unit assemblies in 1X, 2X, and Bay configurations. Compatible with WinGuard Aluminum, ClassicVue Max, and PGT Commercial.
Impact Rating LMI
Made in Florida
PGT Custom Windows & Doors
Product photography coming soon
Impact protection, built for South Florida
The Aluminum Clipped Tube Mullion is PGT's cross-brand structural mullion for ganged multi-unit assemblies in 1X, 2X, and Bay configurations. Compatible with WinGuard Aluminum, ClassicVue Max, and the PGT Commercial storefront system. LMI impact-rated under Miami-Dade NOA 23-0913.05 for HVHZ installations.
- Aluminum frame engineered for strength and durability
- Large-missile impact-rated laminated glass
- Corrosion-resistant finishes for coastal applications
- Professionally installed across South Florida by Armor Pro
Impact Protection
Tested to withstand hurricane wind-borne debris
Engineered Strength
Built and tested to Florida product-approval standards
Corrosion Resistant
Coastal-grade finishes for salt-air durability
Limited Warranty
Manufacturer warranty plus Armor Pro install workmanship
Related Products
More models in the PGT Commercial.
Comparable from Other Brands
Other mullion models Armor Pro installs.
Frequently Asked Questions
The Aluminum Clipped Tube Mullion is PGT's cross-brand structural mullion used to gang multiple window or door units together into one assembly. It carries the wind load between the ganged units so a wide multi-unit opening performs as a single engineered system. We use it whenever a project calls for combining several PGT units side by side rather than installing them as separate openings.
Yes. The Aluminum Clipped Tube Mullion is LMI (Large Missile Impact) rated and approved for HVHZ installations under Miami-Dade NOA 23-0913.05. That means when we gang impact units together with this mullion, the connection itself keeps the assembly within an approved, impact-rated system. We'll confirm the governing approval for your specific assembly at quote.
The Aluminum Clipped Tube Mullion is a cross-brand component compatible with WinGuard Aluminum, ClassicVue Max, and the PGT Commercial storefront system. That lets us tie those products together into one ganged assembly while keeping it under a single PGT system approval. If your project uses PGT vinyl units instead, there's a separate PGT Vinyl Clipped Tube Mullion we'd specify.
The aluminum mullion is designed for ganged multi-unit assemblies in 1X, 2X, and Bay configurations. That covers straight in-line runs of two or more units as well as angled bay layouts. We'll engineer the right mullion configuration around your opening size, the units being combined, and the wind load it has to carry.
We use the Aluminum Clipped Tube Mullion when the ganged units are aluminum-framed products like WinGuard Aluminum, ClassicVue Max, or the PGT Commercial storefront system. For PGT vinyl product assemblies, PGT offers a separate Vinyl Clipped Tube Mullion that matches those units. We'll select the correct mullion for whichever PGT products your project specifies so the whole assembly stays within an approved system.
The mullion is an engineered component of a larger ganged assembly, so it isn't priced on its own; installed cost depends on the units being combined, the configuration, the opening size, and the wind load the assembly has to meet. As a PGT installer, Armor Pro engineers and prices the complete ganged assembly and provides a free estimate. Because the aluminum mullion is HVHZ-approved under Miami-Dade NOA 23-0913.05, we install it so the finished multi-unit opening stays within its impact-rated approval.
PGT Commercial is an aluminum impact storefront system, not a residential window line. It's a coordinated set — two storefront windows (the SS 3500 and the slimmer-sightline SS 3520 SLIMFRONT) and a matching SE 3550 entrance door — all on a shared 1.75 by 5 inch aluminum frame. It's sized for the first- and second-floor envelopes of mid-rise condos, hotels, schools, and offices, so a building's lower-floor glazing and doors come from one Florida-approved assembly under one warranty.
Storefront is a heavier, fixed-glazed aluminum framing system built for the larger spans and foot-traffic doors of commercial ground floors, where a residential operable window would run out of span or rating. The PGT Commercial windows are fixed (non-operable) and the SE 3550 is a pedestrian entrance door, all designed to meet at the mullion for a continuous-sightline elevation. We use this system for light-commercial work rather than houses.
PGT has built impact windows and doors in Venice, Florida since 1980 and is the largest impact-window and -door manufacturer in the country. It was the first company to develop impact-resistant products that met Miami-Dade County's hurricane code after Hurricane Andrew, and the line is engineered specifically for Florida conditions. PGT is now part of the MITER Brands family, alongside WinDoor, ECO, and NewSouth, but the products are still made in Florida under the PGT name.