Frame Colors & Finish Options
Choose from modern, durable powder-coated finishes designed to complement any aluminum bifold door project.
Matte Black
Sleek, modern finish that frames glass like a picture and works with most exterior palettes
Bronze
Warm architectural bronze for traditional, transitional, or earthy modern designs
Graphite
Deep Charcoal gray for a contemporary look with softer contrast thanu black
White
Clean, bright finish that blends with stucco, siding, and light interiors
Our finishes are engineered for exterior performance, featuring durable coatings that resist fading, peeling, and corrosion in all climates.
RAL
Custom
Need something specific?
Custom RAL colors available for matching your design. Click Here
Trusted by Homeowners, Architects & Builders Across USA
Nationwide Shipping (All 50 States)
Custom Sizes & Configurations
Thermal Break Aluminum System
Energy-Efficient Low-E Glass
Better comfort & insulation
Modern Aluminum Bifold Doors for Indoor–Outdoor Living
• Wide, unobstructed openings
• Smooth folding operation
• Perfect for patios, decks, and pool areas
Bifold Door Configurations
Choose from range of bifold door configurations, including various panel options and stack directions available.
2 Panels
3 Panels
4 Panels
5 Panels
6 Panels
Left Stack
Right Stack
Daily Door
Aluminum Bifold Doors
Shipping to All 50 States
Premium folding glass wall systems designed for modern homes and commercial spaces.
Glass Options & Performance
Choose from multiple insulated glass options designed for energy efficiency, clarity, comfort, and modern aesthetics.
.jpg)
Aluminum Frame & Construction
• 6063-T5 Aluminum
• Frame depth: 3"
• Panel depth: 2-1/2"
• Frame width: 1-3/8"
• Panel width: 1-3/4"
Category Value / Rating
U-Value 0.3
Air Leakage 0.3
Glazing System
• Standard - 1" Double Glazing with Argon gas
• Low-E
• Tempered & tinted glass available
Water Tightness 550 Pa - Level 6
Wind Resistance 4000 Pa - Level 7
Sizing & Engineering
• Max panel weight: 300 lbs
• Max panel size: 3 ft W × 11.8 ft H
Sound Insulation 36 dB - Level 7
Performance Specifications
Hardware & Security
Multi-point locking system
Bottom-loaded steel hardware
Optional low or integrated thresholds
Finish Options
• Powder-coated
• All RAL colors available
• Wood-grain thermal film applications
Hardware & Handles
Choose from selection of contemporary handle options for your aluminum bifold door
Smart lock
Keys / Fob / Fingerprint / Code
hardware set
Standard hardware set item types.
Material: Steel / Finish: Powder Coating
Finish color
Black / Silver
Professional Installation & Warranty
10-Year Limited Warranty
We stand behind every bifold door system with a comprehensive multi-part warranty:
• 10 years on aluminum frame
• 5 years on finish
• 3 years on glazing
• 3 years on hardware
Professional Installation
Our certified installation partners ensure your bifold system operates flawlessly from day one.
• Nationwide installation options (local & partner teams available)
• Precision alignment for smooth folding operation
• Weather-tight sealing & system calibration
• Full start-to-finish support (measurement → delivery → installation)
DIY Installation Support
Prefer to install yourself? We make it simple:
• Installation manual included
• Phone & video support available
• Guidance for proper calibration and panel leveling
Nationwide Shipping
• Fast shipping to all 50 states
• Transparent lead times (manufacturing + delivery)
• Secure packaging to prevent damage during transit
Screen Options
For natural ventilation without unwanted insects, add a retractable screen to your bifold door.
Smooth
Rolling
Insect
Protection
Wide Spans
Black
Mesh
Customer Projects & Gallery
See how Cornerstone bifold doors transform homes across the USA.
