WinGuard Aluminum Series
Florida DBPR
Approved
Design Pressure Varies by configuration
NFRC Certified
Made in Florida
PGT WinGuard Preferred View SGD770NS
PGT's flagship aluminum impact line, the reference impact-window platform in Florida.
2026 update of the WinGuard SGD770A with 2.5-inch narrow interlocks for less obstructed glass area. Preferred for view-driven coastal projects.
Florida DBPR
Approved
Design Pressure Varies by configuration
NFRC Certified
Made in Florida
Frame finish
Built for South Florida homes
The SGD770NS is PGT's 2026 update of the WinGuard SGD770A sliding glass door, featuring narrow 2.5-inch panel interlocks for less obstructed glass area and an uninterrupted view through the door. Preferred for view-driven coastal projects where the open view through the SGD is part of the design intent. LMI impact-rated for HVHZ installations.
- Florida Building Code product-approved
- Aluminum (Non-thermally broken) frame engineered for strength and durability
- Energy-efficient Low-E insulated glass options to control heat gain
- Corrosion-resistant finishes for coastal applications
- Professionally installed across South Florida by Armor Pro
Grille Styles
1" Raised/Flat9/16" Flat Grid-Between-the-Glass
Engineered Strength
Built and tested to Florida product-approval standards
Energy Efficient
Low-E insulated glass options reduce heat gain
Corrosion Resistant
Coastal-grade finishes for salt-air durability
Limited Warranty
Manufacturer warranty plus Armor Pro install workmanship
At a Glance
Frame Material
Aluminum (Non-thermally broken)
Max Size
60 x 96 in or 48 x 120 in (per panel)
Design Pressure
Varies by configuration
U-Factor
1.11–1.16
SHGC
0.25–0.62
Visible Trans.
0.06–0.64
Sizes & Pressures
| Configuration | Min size | Max size | Design pressure |
|---|---|---|---|
| Sliding door — By-Pass / Pocket / Corner (90°/135°) | 49.125 x 78 in | 60 x 96 in or 48 x 120 in (per panel) | Varies by configuration |
| Countertop / window-unit version | 49.125 x 30 in | 60 x 96 in or 48 x 120 in (per panel) | Varies by configuration |
Sizes shown are actual DLO frame size.
Design pressure varies by configuration and glass; confirm exact ratings at quote.
Glass & Energy Performance
| Glass package | U-Factor | SHGC |
|---|---|---|
| Energy Shield | 0.69 | 0.28 |
| Argon/Energy Shield | 0.66 | 0.28 |
| Energy Shield Max | 0.69 | 0.22 |
| Argon/Energy Shield Max | 0.65 | 0.22 |
| SolarControl LowE2 | 0.7 | 0.2 |
| Argon/SolarControl LowE2 | 0.66 | 0.2 |
U-Factor / SHGC shown without grids; add-grid values vary slightly. Confirm exact ratings for your opening at quote.
Performance Certifications
- FL251.R42
- FL242.R35
Options
Related Products
More models in the WinGuard Aluminum Series.
Ready to install the PGT WinGuard Preferred View SGD770NS?
Armor Pro measures, permits, and installs it across South Florida — code-compliant and warrantied. Get a free, no-obligation estimate.
Comparable from Other Brands
Other sliding glass door models Armor Pro installs.
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ECO Window Systems
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Eurocraft
Eurocraft EC-400 Casement Door / Sliding Glass Door
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Frequently Asked Questions
The SGD770NS is PGT's 2026 update of the WinGuard SGD770A sliding glass door, built with narrow 2.5-inch panel interlocks so less of the opening is blocked by frame where the panels overlap. The result is more uninterrupted glass and a cleaner sightline through the door. We recommend it for view-driven coastal projects where the open view through the slider is part of the design intent, while the standard SGD770A remains the choice when raw pressure capacity is the priority.
Yes. The SGD770NS is LMI (Large Missile Impact) rated and HVHZ-certified for Miami-Dade and Broward installations. It carries a design pressure of up to +90/-90 psf depending on size and configuration. We confirm the current approval and the exact design pressure for your opening at the time of quote.
Both the by-pass/pocket/corner version and the countertop window-unit version of the SGD770NS reach a maximum panel size of 48 by 120 inches, with panels up to 60 inches wide and 120 inches tall on the platform. That lets it serve tall, view-oriented openings while keeping the slim 2.5-inch interlocks. We'll lay out the panel count and configuration for your opening and verify the size against the approval before ordering.
The SGD770NS comes as a by-pass slider, a pocket door, or 90- and 135-degree corner units, plus a countertop window-unit version. Glass is available laminated or laminated insulating, with Energy Shield, Energy Shield Max, and SolarControl LowE2 packages; U-factors run about 0.65 to 0.71 and SHGC from roughly 0.18 to 0.28 on the insulating options. For South Florida heat we usually point homeowners toward the argon Energy Shield Max or SolarControl LowE2 for the lowest solar heat gain.
The SGD770NS comes in White as standard, plus Bronze, Black, and Clear Anodized aluminum frame finishes. Standard hardware includes a dual-point locking mechanism, heavy-duty tandem rollers for smooth operation on large panels, and hidden installation and assembly screws for a clean look. You can choose raised pull handles (standard) or recessed pulls, and grids are available as a 1-inch raised/flat or 9/16-inch flat grid-between-the-glass.
Installed cost depends on the opening size, the number of panels, the configuration (by-pass, pocket, or corner), the glass package, and the condition of the opening, so Armor Pro provides a free estimate rather than a flat price. The narrow-interlock Preferred View build is geared toward view-driven projects, so we'll talk through whether the extra glass area is worth it versus the standard SGD770A for your opening. We'll measure, recommend a glass package, and give you a written quote.
WinGuard Aluminum is PGT's flagship aluminum impact line and runs the full operation range on one extrusion platform: single hung, horizontal roller, casement, awning, fixed picture, architectural shapes, plus sliding glass doors and French doors. Because every style shares the same frame family, a whole house can be specified consistently instead of mixing systems opening by opening. It's been PGT's reference impact-window platform in Florida since 1998.
Yes. Every WinGuard Aluminum product is large-missile impact-rated and eligible for the High-Velocity Hurricane Zone, which covers Miami-Dade and Broward counties. The line carries one of the deepest Miami-Dade NOA libraries in the industry, glazed with PGT's Diamond Glass laminated impact glass. The exact design pressure depends on the size and configuration of each opening, which we confirm against the Florida Building Code on your quote.
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.