Professional garage door supplier and manufacturer
Modern Garage Doors from a Leading Chinese Manufacturer
Looking for a reliable supplier of modern garage doors built to U.S. standards? At Grandsea, we manufacture and export high-quality garage doors that combine advanced Chinese engineering with the performance and durability required for American projects. From sectional garage doors to glass and faux wood options, our products are designed with safety, style, and large-scale customization in mind.
With factory-direct pricing, flexible material choices, and precision manufacturing, Grandsea is a trusted partner for importers, wholesalers, and contractors seeking garage doors that deliver both long-term value and modern curb appeal.
Ultra-durable steel tracks & high-cycle springs ensure smooth, reliable operation for years without sagging or jamming.
Built to last.
Interlocking hinges and a heavy-duty bottom bar distribute force, providing exceptional strength to withstand severe weather and gusts.
Advanced rolling-code technology offers instant, real-time response from up to 50m away. Enjoy seamless control and superior security.
Top, side brushes and a thick bottom EPDM seal block out all drafts, dust, water, and noise, ensuring perfect insulation and protection.
our garage door designs
Wood Garage Door
Aluminum Garage Door
Garage Doors with Windows
Hidden Garage Doors
Black garage doors
Roll up garage door
Garage door with a pedestrian door
Insulated garage doors
Residential garage doors
2 car garage door
Wood look/faux wood garage doors
Brown garage doors
Glass Garage Doors
Bifold Garage Doors
Sectional Garage Doors
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Double-layer steel plate structure :
Adopt 0.6mm thick high-quality galvanized steel plate, filled with polyurethane foam -
Anti-corrosion coating :
The surface is coated with weather-resistant powder coating -
Silent design :
Adopt high-quality nylon rollers and torsion spring systems to ensure smooth and silent opening and closing. - Insulation coefficient: R-value ≥ 2.5 m²·K/W
- Wind pressure level: Level 3 (can withstand 120km/h strong wind)
- Opening and closing times: more than 20,000 times
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Panoramic glass design :
using large area tempered glass panels -
Aluminum alloy frame :
using high-strength aluminum alloy profiles, combining lightness and strength -
Multiple seals :
using EPDM rubber sealing strips to ensure excellent waterproof and dustproof performance - Thermal insulation coefficient: U value ≤ 2.8 W/(m²·K)
- Wind pressure resistance: 2000Pa
- Opening and closing times: more than 20,000 times
Why Choose Grandsea Garage Doors?
- ✅ Customizable Options – Choose from 200+ RAL colors, wood-look finishes, or glass inserts.
- ✅ Premium Quality – Built with insulated panels, torsion springs, and smooth ball-bearing rollers.
- ✅ Energy Efficiency – Thermal insulation to lower energy costs.
- ✅ Smart Technology Ready – Compatible with top garage door openers and smart home systems.
- ✅ Safety First – Finger-pinch protection, spring break devices, and photoelectric sensors.
- ✅ Trusted Manufacturing – Decades of experience as a global garage door supplier.
Types of Garage Doors We Manufacture
🏠 Sectional Garage Doors (Most Popular)
The best-selling garage door style in the U.S., sectional garage doors are strong, space-saving, and highly insulated. Our sectional doors are ideal for single, double, and even oversized garages, providing:- Smooth operation with torsion spring systems
- Quiet, durable rollers and side rail guides
- Compatibility with smart garage door openers
🏡 Glass Garage Doors
For a modern, upscale look, glass garage doors are a stylish option. Built with tempered glass and strong aluminum frames, they:- Enhance curb appeal with a sleek, contemporary design
- Allow natural light inside your garage
- Perfect for workshops or hobby spaces
🌲 Faux Wood Garage Doors
Love the charm of wood but not the maintenance? Our faux wood garage doors mimic natural grain textures with advanced finishes, offering:- Classic or modern wood looks
- Weather-resistant durability
- Affordable luxury without the upkeep
🚗 Double Garage Doors
Need a garage for two cars? We manufacture double garage doors up to 7.95 meters wide, making us one of the few global suppliers capable of producing oversized garage doors for American homes.Designed for U.S. Homes & Weather Conditions
Our garage doors are built to perform in a wide range of climate conditions, from extreme heat to freezing cold. Equipped with advanced insulation panels, weather seals, and durable steel or aluminum frames, Grandsea garage doors ensure long-lasting performance, comfort, and energy efficiency throughout the year.Get Every Answers About garage doors
What are the different types of garage doors?
There are three common types of garage doors:
Up-and-Over Garage Doors: These doors lift upward as a single piece. They are simple but require clearance space in front of the garage to open.
Sectional Garage Doors: Composed of horizontal panels, these doors move vertically on tracks and curve into the garage ceiling. They are currently the most popular style due to their space-saving design and versatility.
Roller Garage Doors: Made of steel or aluminum slats, these doors roll up into a compact box above the opening, making them extremely space-efficient.
What are standard garage door sizes?
For new construction or custom homes, slightly taller garage doors (8 feet high) are becoming more common. Common single garage door dimensions are: 8 feet wide and 7 feet high (8×7); double garage door dimensions are: 16 feet wide and 7 feet high. Grandsea also offers custom sizes, depending on the size of your vehicle, available space and storage needs.
What material should a garage door be?
For most homeowners, steel garage doors or aluminum doors strike a good balance between durability, low maintenance, and cost-effectiveness. However, if you prioritize a classic look and don’t mind more maintenance, wood is a better choice. For coastal areas, an aluminum garage door is ideal because it is corrosion-resistant.
How much does it cost to install a garage door?
The cost of installing a garage door typically averages between $550 and $1,800, and actual costs may vary depending on your specific requirements, location, and selected features.
