Reliable Steel Door Manufacturers from China
Grandsea’s steel front doors impress many international customers with their high-quality construction and solid steel frames. Here, you can configure and order steel front doors in various styles at very attractive prices.
Excellent security performance
Our steel doors are made of high-strength steel and equipped with an advanced multi-point locking system to provide the highest level of security for your home or commercial space.
Excellent sound insulation and heat insulation effect
The unique multi-layer structure design is filled with high-density sound insulation materials to effectively block external noise and temperature changes, and improve indoor comfort.
Personalized customization options
A variety of styles, colors and surface treatment options are available to meet different style needs, making your entrance door unique.
Superior durability
Selected high-quality steel, after special anti-corrosion treatment, can withstand various harsh weather conditions and has a service life of more than 30 years.
Low maintenance cost
Adopting high-quality coating technology, it is rust-proof and anti-corrosion, and does not require frequent maintenance. It remains as new after long-term use.
Excellent fire resistance
All steel doors have passed strict fire tests, and some models can provide up to 90 minutes of fire resistance to ensure your safety
steel doors Ideas
Luxury anti-theft steel door SD-200
- Dimensions: 38"-48" wide, 84"-108" high
- 2mm high-strength alloy steel
- Filling material: special bulletproof material + mineral wool
- nano anti-fingerprint coating, imitation wood grain optional
- smart fingerprint lock + mechanical emergency lock, anti-theft level 4
- Fire rating: 90 minutes
This luxury anti-theft steel door uses top-quality materials and cutting-edge technology, tailored for customers who pursue ultimate security. Extra-thick door panels and special filling materials provide unparalleled anti-theft performance. The smart lock system is convenient and safe, and the advanced surface treatment highlights taste.
Modern and stylish steel door SD-100
- Dimensions: 36"-42" wide, 80"-96" high
- Door panel thickness: 1.5mm high-quality cold-rolled steel
- Filling material: high-density polyurethane foam
- Surface treatment: electrostatic powder coating, multiple colors available
- multi-point lock imported from Germany, anti-theft level up to level 3
- Warranty: 20-year limited warranty
This classic steel door uses high-quality steel and advanced technology to ensure long-term stable performance. The unique multi-layer structure design not only provides excellent security, but also has excellent sound insulation and heat insulation. The exquisite surface treatment makes it look stylish and suitable for various architectural styles.
High-standard exterior steel doors
The most important criteria for entrance doors are design, security, and thermal insulation. In addition to the door material, the door frame profile also affects overall door performance. Different types of exterior steel doors have varying characteristics in terms of thermal insulation, filling materials, glass options, and locking mechanisms.
However, the steel exterior doors produced by Grandsea Windows and Doors are of the highest quality in the industry - the choice of different details is just to personalize them to meet your wishes.
Regarding glass options, you can choose from high-quality multi-layer glass or laminated safety glass. Of course, the choice of glass for your door panel is entirely up to you. In addition to laminated safety glass, you can also choose to use decorative frosted glass.
All our steel doors feature door panels that cover the door leaf and are fitted within the door frame to provide optimal thermal insulation. Depending on the configuration, the thermal insulation strength varies. Even the basic door profile with 68 mm thick filling provides very high thermal insulation. If you want to further improve thermal insulation, you can contact us for custom-made solutions.
In terms of burglar protection, we equip each steel entry door with a high-quality anti-theft door lock. Our basic models provide effective protection against potential intruders; however, if you require enhanced burglar resistance, we are the ideal provider for your front door needs.
High-quality appearance, good thermal insulation
Steel is a strong and durable material that ensures the stability and security of the front door. If you have a strong need for anti-theft, you must not miss our steel front door. We innovatively add high-quality fillings to steel doors to improve their thermal insulation properties and contribute to energy efficiency. This is especially important for minimizing heat loss in the house.
Steel exterior doors are generally very durable and can stand the test of time for many years without any obvious signs of wear or decay. Since the steel door frame is resistant to corrosion and weather, it requires very little maintenance. Regular cleaning and occasional inspection of the seals are usually sufficient.
PS: Steel front doors offer clear advantages over other materials, particularly in terms of strength and security. Steel is inherently more stable and resilient.
Advantages of steel front doors at a glance:
- High-quality door appearance
- Very weather-resistant and long service life
- Available in modern and classic designs
- A variety of colors and decorations to choose from
- Very good thermal insulation value and good sound insulation
- High anti-theft and stability
Steel door tailored to your ideas
Have you decided on the profile, the right size and the desired design? Then you can choose additional features for your outside steel doors. For example, decide whether you want the door to open inward or outward (the latter provides greater convenience and living comfort), order side panels for a wider and brighter entrance area, skylights for more light or install special laminated safety glass for added burglar protection.
You can do this with a steel front door with glass inserts, additional skylights or side panels. We have a wide range of front door styles on our website, so you can find the perfect model for your idea. Modern front doors from Grandsea, a top door and window manufacturer, are of the highest quality you can trust. Contact us now to place your order!
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Faq's
Get Every Answers About steel doors
Steel doors have the following advantages over wooden doors:
- Higher security and anti-theft performance
- Better durability and long life
- Higher fire resistance
- Lower maintenance requirements
- Better energy efficiency
Steel doors can indeed rust, but our entry steel doors are usually specially treated to prevent rust. They are usually coated with primer, automotive paint and filler, which greatly improves the rust resistance. For customers with higher requirements, Grandsea also provides galvanized or stainless steel options.
High-quality steel doors typically contain sound-absorbing materials like polyurethane foam. Noise from sources such as loud neighbors and street traffic is effectively reduced by the door’s inner core. Select steel for a door that provides excellent security and soundproofing.
Yes, our factory can provide custom-sized steel doors based on the specific needs of our customers. This allows the steel doors to fit a variety of different door frame sizes and architectural requirements.
The service life of a steel door is generally very long. With proper installation and maintenance, a steel door can last 30 years or more.
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