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Fleetwood <strong>series</strong> 3800-T | Fleetwoodusa Products Skip to main content
Contemporary hillside home with cantilevered upper level, flat roof design, floor-to-ceiling glass windows, and horizontal wood siding surrounded by landscaped greenery.

series 3800-T

The 3800-T window system offers complete architectural liberty with seamless mulling and operable inserts that transform tailored luxury into architectural vision.

Photo Gallery

Contemporary home exterior at dusk featuring two-story glass walls, wood-paneled ceiling with recessed lighting, outdoor dining area with built-in grill, and elevated hot tub surrounded by trees.

Product Highlights

key features

  • Unlimited window combinations through mulling and fixed panel configurations.
  • Customizable inserts allow pairing with operable window systems (350-T, 450-T).
  • Slim 1-7/16 perimeter sightlines maintain a sleek aesthetic in both block and nail-fin frames.
  • Flexible glazing orientation, interior or exterior, for tailored design.
  • Boutique options include steel-inspired 3/4* divided lites and mitered corner glass windows. 

FINISHES

Timeless Finishes. Cleaner Living. With proper maintenance, our anodized finishes and factory-baked paints last a lifetime, reducing chemical waste from refinishing. We also use processes that eliminate Volatile Organic Compounds that some products emit into the air. This ensures the healthiest home and supports our planet's environment.

Energy, Noise & Security

High Efficiency Glass:  Modern glazing from Fleetwood coupled with increasingly efficient insulation techniques allows a minimalist design with huge glass that does not compromise energy consumption.

Thermal Break Technology:  Fleetwood products with a “T” in the series number are manufactured with thermally broken aluminum for condensation control and energy efficiency. For over 30 years, Fleetwood has designed products around this now sweeping practice and does so with extensive testing and engineering so the product maintains the look for the ultimate minimalist.

Security Benefits: Fleetwood endeavors to make products better instead of cheaper, resulting in specialty products that other manufacturers should not attempt. High-security laminated glass (like your car windshield) coupled with robust Fleetwood framing can withstand severe impact.

Noise Control:  Fleetwood chooses to offer a wide range of options instead of limiting features to increase profit and simplify production. Sound dampening upgrades to glass and products are available without affecting the budget or design.

Product Specifications

Standard Features

Finish

Stock Anodized Finish: Black (Class 1) or Clear (Class 1)

Glass

1” Insulated Glass with Dark Bronze Spacer

Frame

6063 T-6 Extruded Aluminum

Thermal Barrier

Poured & De-bridged Thermal Barrier

Glass Size Options

Equal Sized Glass

Hardware

4-1/2″ Deep Nail-on Frame

Stainless Steel Assembly Screws

Accessories

1/2″ Height Aluminum Sill Pan

Exterior Snap-in Glazing (Square Profile)

OPTIONAL FEATURES

Finish

Kynar 70% Paint (50% for dark colors, ex. Black)

Class 1 Custom Anodize (Light Bronze & Medium Bronze)

Glazing

9/16″, 1-1/4″ & 1-1/2″

Glass Size Options

Unequal Size Glass (TDL Alignment)

Hardware

4-1/2″ Deep Equal Leg (Block) Frame

Steel Look SDL

CONFIGURATIONS

Unlimited

MAX. PANEL WIDTH & HEIGHT

Maximum Panel Width

Determined by site wind loads

Maximum Frame Height

Determined by site wind loads

(Max width & height are not necessarily available in combination)

Technical Resources

Architectural Detail Drawings


Concept Drawings


STANDARD GLASS TABLE

series 3800-T Window-Wall System

Outside Glazed

Dual Glazing

Triple Glazing


U-Value

SHGC

No Dividers

U-Value

SHGC

No Dividers

Description/ Code

Air

Argon

Argon &

Warm Spacer

Air/ Argon

Air

Argon

Argon & Warm Spacer

Air/ Argon

Cardinal 366 6mm

-

.31

-

/.24


-

-

-

-

Cardinal 366/ i89 6mm

.29

.27

-

.24/.24


-

-

-

-

Cardinal 272 6mm

-

.32

-

/.36


-

-

-

-

Cardinal 272/ i89 6mm

-

.27

-

/.35


-

-

-

-

Guardian SN68 6mm

.37

.34

.32

.34/.33


.27

.24

-

.29/.28

Guardian SNX62 6mm

.37

.33

.32

.24/.24


.27

.23

-

.21/.20

Guardian SNX62/ IS20 6mm

-

-

.27

/.23


-

-

.20

/.17

series 3800-T Window-Wall System

Inside Glazed

Dual Glazing

Triple Glazing


U-Value

SHGC

No Dividers

U-Value

SHGC

No Dividers

Description/ Code

Air

Argon

Argon &

Warm Spacer

Air/ Argon

Air

Argon

Air/ Argon

Cardinal 366 6mm

-

.33

-

/.25


-

-

-

Cardinal 366/ i89 6mm

-

.28

-

/.24


-

-

-

Cardinal 272 6mm

-

.34

-

/.36


-

-

-

Cardinal 272/ i89 6mm

-

.29

-

/.35


-

-

-

Guardian SN68 6mm

.40

.36

.34

.34/.34


.29

.26

.29/.28

Guardian SNX62 6mm

.39

.35

.33

.25/.24


.29

.25

.21/.21

Guardian SNX62/ IS20 6mm

-

-

.30

/.23


-

-

-

ADDITIONAL GLASS TESTING


Simulated Performance Alternative Reports are available upon request.

Spacers

  • A1 = Aluminum Spacer
  • SS-D = Stainless Steel Spacer
  • A2/TS-D = Warm Edge Spacers
  • ZF = Super Spacer


Linked reports reflect current testing to NFRC standards. If you have a suggestion for testing an additional type of glass, please email your suggestion to sales@fleetwoodusa.com.

WEATHER TEST RESULTS

AAMA/WDMA/NAMI/HVHZ/ASTM

All testing was performed in a laboratory environment to determine results. These reports are provided to allow Engineers, Architects, and Design professionals reasonable expectations of products and may not illustrate every option, condition, or configuration available. These are for illustration and comparative analysis only.

*Reports exceeding 4 years may not have current 3rd party certification, and will not be labeled.

Current Test Reports:



















Installation Instructions


Assembly Drawings


Find a Dealer

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Get in Touch


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