3 Lite French Steel Exterior Single Glass Door 

Modern Steel Exterior Door for Narrow Openings and Secondary Entrances

Product Overview

The 3 Lite French Steel Exterior Glass Door – Single Panel delivers the same refined European aesthetic as our double door system in a streamlined format designed for narrower exterior openings. Featuring three vertically aligned glass lites set within a slim, black steel frame, this exterior steel door provides exceptional natural light, weather resistance, and security in a single-panel configuration.

Ideal for side entrances, patio access, courtyard connections, and modern rear elevations, this door offers a clean architectural presence without overwhelming the façade. It is purpose-built for homeowners and designers who want cohesive exterior design across multiple entry points while adapting to varied opening sizes throughout the home.

Designed for Cohesive Exterior Architecture

This single-panel French steel exterior door is engineered to pair seamlessly with our wider 3 Lite double door system, allowing you to maintain consistent sightlines, materials, and proportions across your exterior elevations.

Use the double door for primary front entries or grand openings, and specify the single panel version for:

• Side or service entrances

• Patio or pool access doors

• Courtyard connections

• Secondary exterior entries

The result is a deliberate, architect-driven design language rather than mismatched exterior doors.

Premium Steel Construction for Exterior Performance

Unlike interior steel doors or wood-framed exterior alternatives, this door is constructed specifically for exterior conditions. The rigid steel frame delivers long-term dimensional stability while resisting warping, swelling, or sagging caused by temperature swings and moisture exposure.

The durable black powder-coat finish is designed to withstand sun exposure, rain, and daily use without fading or peeling, making it a low-maintenance solution for exterior applications. Steel’s inherent strength also enhances security, offering greater resistance to forced entry compared to wood or composite doors.

Three Lite Glass Configuration

The vertical 3-lite layout provides an ideal balance of transparency and structure for exterior doors. Each glass panel allows daylight to penetrate interior spaces while preserving a strong steel framework that reinforces both performance and visual rhythm.

The narrow steel dividers create depth and shadow lines that elevate the door beyond a flat glass slab, delivering a refined, modern appearance suitable for contemporary, industrial, and transitional homes.

Exterior Use, Practical Proportions

The single-panel format is especially valuable where space constraints, swing clearance, or architectural balance make double doors impractical. It provides:

• Efficient operation for high-traffic secondary entries

• Easier integration into existing exterior openings

• Reduced swing radius compared to paired doors

This makes it an excellent solution for renovations, modern infill projects, and homes where multiple exterior doors must remain visually coordinated.

Size Guide & Overall Unit Dimensions

This 3 Lite French Steel Exterior Single Glass Door is available in two carefully proportioned sizes designed to integrate cleanly into standard exterior openings while maintaining modern sightlines and structural performance.

Available Door Sizes

36" x 80" Door

• Nominal Door Size: 36" wide × 80" tall

• Overall Unit Size: 37.5" wide × 81.5" tall (outside of frame)

• Ideal for standard residential exterior openings and replacement projects

36" x 96" Door

• Nominal Door Size: 36" wide × 96" tall

• Overall Unit Size: 37.5" wide × 97.5" tall (outside of frame)

• Designed for homes with taller ceilings or modern architectural elevations where standard-height doors would appear undersized

Sizing Notes

• Overall unit size reflects the full framed door, measured from the outside edge of the steel frame.

• Rough opening requirements should allow appropriate clearance for shimming and installation.

• The 36-inch width provides comfortable clearance for daily use while fitting efficiently into narrower exterior openings.

• The 96-inch height option enhances vertical emphasis and pairs seamlessly with contemporary window and door systems.

Design Versatility

The black steel frame creates strong contrast against light façades while pairing naturally with darker trim, metal railings, and modern window systems. Its restrained geometry allows it to complement:

• Modern and minimalist architecture

• Industrial and urban homes

• Transitional designs blending classic massing with modern materials

Rather than following short-term trends, the steel-and-glass composition delivers enduring architectural relevance.

Why Choose a Single Panel French Steel Exterior Door?

• Maintains design consistency with double door entries

• Provides exterior-grade durability and security

• Maximizes natural light in secondary entry locations

• Requires less space than double door systems

• Delivers modern curb appeal without visual excess