28 Foot Wide Aluminum Sliding 4-Panel Panoramic Patio Door Thermal (Multiple Heights)

What Sets Us Apart from Other Brands?

Why Our Bi-Fold Doors Stand Above the Rest Not all bi-fold doors are created equal. Unlike the mass-produced, low-cost doors you’ll find online at big-box retailers like Home Depot, our doors are built to withstand extreme conditions and last for years to come.

✅ Superior Wind Resistance – Engineered to handle hurricanes and tornadoes, our doors boast an impressive Wind Load Resistance of TS EN 12210, 4500 Pa, providing unmatched protection.

✅ Energy Efficiency & Insulation – With thermal insulation of Uw: 2.3 W/m².K, our doors help maintain indoor temperatures, reducing energy costs and keeping your home comfortable year-round.

✅ Stronger, More Durable Construction – Unlike flimsy budget doors, our 1.8mm thick profiles, 77.3mm frame depth, and 56.3mm panel width create a robust structure that won’t warp or break over time.

✅ Industry-Leading Warranty – While cheap door factories offer 1-5 year warranties, we stand behind our quality with a long-term, proven warranty for peace of mind. Don’t settle for the cheapest option—invest in quality. Keep your family, tenants, and property safe with bi-fold doors designed to withstand the toughest conditions. Choose Gladiator Windows & Doors—a name you can trust.

1. Industry-Leading Wind Load Resistance

✅ Our doors have a 4500 Pa (4.5 kPa) wind load resistance, making them 5x stronger than the industry standard of just 800 Pa.

✅ Designed to withstand hurricanes, storms, and high-wind environments without structural failure.

❌ Many competitors sell doors with weak frames and glass that cannot handle high winds, putting your home at risk.

2. Heavy-Duty Aluminum Frame Construction 

✅ We use 2.2mm-thick 6063-T5 aluminum frames, engineered for maximum durability and longevity.

✅ Resistant to bending, warping, and long-term wear, even in extreme weather conditions.

❌ Many competitors use thin, low-quality aluminum (1.2-1.4mm thick) that bends and deteriorates over time.

3. Advanced Thermal Break Technology for Energy Efficiency

✅ Our doors feature 5+27A+5mm double-tempered glass with argon gas insulation, ensuring superior energy efficiency.

✅ Keeps homes cooler in summer and warmer in winter, reducing energy costs.

❌ Many competitors use thin single-pane glass without insulation, leading to heat loss and high energy bills.

4. Stainless Steel Track System for Smooth Operation

✅ We use SUS304 stainless steel tracks, ensuring smooth sliding, long-term durability, and rust resistance.

✅ Designed for easy operation and minimal maintenance.

❌ Many competitors use cheap aluminum tracks that rust, deteriorate, and cause sliding issues over time.

5. Fully Enclosed Wooden Crate Packaging for Maximum Protection

✅ Every order is professionally crated in a high-strength wooden box, costing us nearly $1,000 per order, to ensure your door arrives in perfect condition.

✅ Protects against shifting, impact damage, and exposure to elements during transit.

❌ Many sellers use open-frame crating, leading to damaged deliveries, costly returns, and installation delays.

6. Waterproof & Airtight Sealing for Longevity

✅ Features a three-seal system and hidden drainage design, preventing water leaks and air infiltration.

✅ Ideal for coastal, high-humidity, and extreme weather environments.

❌ Many competitors lack proper weatherproof sealing, leading to water damage, mold, and poor insulation over time.

7. U.S. Building Code Compliance – Guaranteed

✅ Our doors are fully tested and certified to meet U.S. national and local building codes.

✅ You can verify these certifications in our product images.

❌ Many online sellers offer imported doors that do not meet U.S. regulations, leading to failed inspections and costly modifications.

What Are the Benefits of Choosing Gladiator Sliding Glass Doors?

✔ Extreme Wind Resistance (4500 Pa) – 5x stronger than standard doors.

✔ High-Performance Thermal Efficiency – Argon gas-filled glass for superior insulation.

✔ Heavy-Duty Aluminum & Stainless Steel Hardware – Engineered for longevity.

✔ Best Packaging in the Industry – Fully crated for damage-free delivery.

✔ Custom Sizes & Bulk Pricing Available – We accommodate large projects and unique configurations.

✔ Factory-Direct Pricing – Get the best deal without middleman markups.

Why Should I Avoid Cheaper, Low-Quality Sliding Doors?

❌ Many sellers use weak frames and thin glass that are not built to withstand strong winds or extreme temperatures.

❌ Poor packaging leads to damaged deliveries, causing delays and extra costs.

❌ Lack of U.S. compliance results in failed inspections, forcing you to spend money on modifications.

❌ Cheaper aluminum tracks and hardware deteriorate quickly, leading to sticking doors and costly replacements.

ESTIMATED DELIVERY

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PRODUCTION & LEAD TIME

At our company, we prioritize safe, secure, and efficient delivery of your custom sliding glass doors. Since these are high-end, made-to-order products, we take extra precautions to ensure they arrive in perfect condition, ready for installation.

Every door is custom-manufactured to your specifications upon order placement. The standard lead time for production is 10–12 weeks. Once manufacturing is complete, your order will be professionally crated and scheduled for shipping

PREMIUM PACKAGING & CRATING

Unlike many companies that use basic, open-frame crating, we invest over $1,000 per custom crate to ensure maximum protection.

Our crates are fully enclosed, reinforced, and designed to withstand long-distance transport. Every order is professionally packaged to prevent shifting, impact damage, or exposure to elements during transit.

This added layer of protection sets us apart and ensures your product arrives flawless and installation-ready.

SHIPPING & DELIVERY DETAILS

FREE Nationwide Delivery: We offer free shipping within the U.S. for all custom sliding glass doors.

Orders are shipped via freight or private carrier, depending on your location and logistics. We partner with top-tier shipping providers to ensure reliable and timely delivery.

Deliveries can be made to both commercial and residential addresses. Due to the size of the doors, please make sure there’s adequate space at the site for safe unloading

IMPORTANT DELIVERY CONSIDERATIONS

Contractor Notification: If you're working with a contractor, please let them know the estimated delivery window so they can prepare for unloading and installation.

Delivery Inspection: When your order arrives, inspect the packaging and crate before signing for delivery. If there’s any visible damage, document it immediately and contact us so we can assist with a resolution.

Special Handling: These are large, heavy products. We recommend having at least two people available to assist with unloading. For larger orders, a forklift may be necessary.

We’re committed to a seamless, stress-free delivery experience—making sure your custom doors arrive safely, on time, and ready to enhance your space. If you have any questions about shipping or delivery, feel free to reach out to our team.

Recessed Track System for Sliding Glass Doors

This recessed track system is designed to be installed flush with the finished floor, creating a clean, seamless look while allowing for smooth operation of your sliding glass doors. By concealing the track beneath the surface, you achieve a modern, minimalist aesthetic without compromising performance. Refer to the detailed drawing below for exact track dimensions and installation guidance.

DOOR CAD FILES / MEASURMENTS

Thermal Break Door ParametersAvailable in 2-track, 3-track, and 4-track systemsFeatures double-tempered glass: 5 + 27A + 5 mm

assembly instructions

Easily assemble your bi-fold doors with our clear, step-by-step guide. Click below to view detailed instructions: 
This guide includes:
✔ Required tools and hardware
✔ Frame and track installation
✔ Panel alignment & adjustments
✔ Final checks for smooth operationFollow each step carefully to ensure a proper fit and long-lasting performance.