Why is aluminum thickness important?

Aluminum thickness directly determines the structural strength of doors and windows. If the aluminum is too thin, it may deform and break down quickly. If it is too thick, it may increase costs unnecessarily. Knowing the right thickness helps ensure durable and cost-effective results in the long term.

Choosing aluminum that is too thin may cause doors or windows to bend, become loose, or deform easily. On the other hand, choosing aluminum that is thicker than necessary can increase material costs unnecessarily. Aluminum is a popular material for doors and windows because it is lightweight, weather-resistant, durable, and reasonably priced. However, using the wrong thickness can lead to several problems.

What happens if the aluminum thickness is not enough for doors and windows?

Aluminum that is too thin can make the structure weak, causing it to bend over time or when exposed to impact. Doors and windows may lose their shape, fail to close properly, and deteriorate faster than they should. This can lead to repair costs that are higher than choosing quality materials from the beginning.

What problems can occur when the aluminum is thicker than necessary?

Choosing aluminum that is thicker than the project requires can increase material costs unnecessarily. It also adds more weight to the overall door or window panel, which can affect the rollers and sliding track system, as well as increase the load on the frame and building structure.

Recommended aluminum thickness by type of work

Choosing the right aluminum thickness makes installation easier, gives the work a clean and attractive finish, and helps reduce concerns about long-term use. The suitable thickness depends on the type of panel, size, and installation location. The table below summarizes recommended values based on real experience from the SGQ technician team, using the following factors as a guide.

How thick should aluminum be for sliding doors and windows?

Standard sliding doors and windows can use aluminum with a thickness of 1.2–1.5 mm, which is sufficient for normal use because the panel weight is supported by the rollers and sliding tracks, rather than taking direct impact. However, for large sliding panels or outdoor installations, the thickness should be increased to 1.5 mm for better strength.

What aluminum thickness is needed for swing doors and exterior doors?

Swing doors have to handle repeated opening and closing, as well as the weight of the panel supported by hinges. They should use aluminum with a thickness of at least 1.5 mm. Exterior doors exposed to strong wind or heavy rain should be increased to 1.8–2.0 mm. For large glass door installations, it is always recommended to choose aluminum with a thickness of at least 1.8 mm.

How thick should aluminum be for large glass panels and security doors?

Panels used with Low-E glass or double glazing, which are heavier than standard glass, require aluminum frames with a thickness of 1.8–2.0 mm to safely support the weight. Security doors require a thickness of 2.0 mm or more to withstand impact and help protect the home.

How does the installation area affect the choice of aluminum thickness?

In addition to the type of door or window, the environment of the installation area is an important factor in determining the right thickness. Aluminum exposed to harsh weather conditions requires greater thickness and better surface coating.

How are indoor and outdoor areas different when choosing aluminum thickness?

Indoor areas are not exposed to rain, sunlight, or wind, so aluminum with a thickness of 1.2–1.5 mm is generally sufficient. However, outdoor areas exposed to weather conditions throughout the year should use aluminum with a thickness of 1.5–2.0 mm. In addition, choosing the right color and surface coating for the environment also affects service life. 

What aluminum thickness and type should be used in coastal areas?

Coastal or seaside areas have high salt content in the air, which can damage aluminum surfaces faster than usual. It is recommended to choose aluminum with a thickness of at least 2.0 mm, along with special surface coating such as high-quality anodized or powder-coated aluminum that meets TIS 218 standards to help prevent long-term corrosion.  

TIS aluminum standards you should know before buying

TIS standards help guarantee that the aluminum has passed quality testing according to industrial requirements. They do not only confirm the correct thickness, but also help ensure safety and long service life.

They do not only confirm the correct thickness, but also help ensure safety and long service life. To learn more about the standard aluminum thickness, you can read the details in this article.

How many TIS standards are related to aluminum doors and windows?

There are 3 main TIS standards used for aluminum doors and windows:

• TIS 284-2560 — Extruded Aluminum for frame profiles, sliding panels, and casement panels
• TIS 218-2520 — Anodized Aluminum, covering surface quality, coating, and color durability
• TIS 744-2563 — Prefabricated aluminum door and window systems, tested for wind load, water leakage, and structural strength

How can you check whether aluminum meets TIS standards?

Choosing aluminum that meets TIS standards and has passed factory quality control helps ensure safety and long-lasting performance. 

You can check it in 3 simple ways:

• Look for the TIS mark on the product or packaging.
• Check visually: the surface should be smooth and even, with no defects or air bubbles, and the profile should be straight without bending.
• Ask the store for certification documents, especially for project work or high-rise buildings.

How to check whether aluminum profiles meet the standard

Choosing aluminum that meets TIS standards and has passed factory quality control helps ensure safety and long-lasting performance.

TIS aluminum refers to industrial product standard certification. When you see the term “TIS” on aluminum products, it means:

• The product has been tested and certified according to standard quality requirements.
• It is safe and suitable for use.
• It is manufactured under an industrial-level quality control process.

Check the thickness, weight, and surface finish.

• There should be no stains, air bubbles, or uneven color coating.
• The surface should be smooth, the color should be even, and there should be no defects.

Good-grade aluminum should fit tightly when assembled.

• There should be no bending, and the profile should be straight and easy to fit into place.
• It should not deform during installation or frame assembly.

There should be specifications or certification documents from the factory.

• Especially for project work or high-rise buildings, specification and standard certification documents are essential.

Visual inspection

• Surface consistency: there should be no defects, air bubbles, or poorly finished color coating.
• Straightness of the profile: high-quality aluminum should have a straight shape without bending.
• Weight: aluminum with standard thickness should have an appropriate weight and should not feel too light.

Technical inspection

Use a thickness gauge: this metal thickness measuring tool helps confirm the actual thickness.

• Check certification documents: ask to see quality certificates from the manufacturer or the store.
• Look for the TIS mark: products that meet the standard usually have a stamp or information indicating standard certification.

Which aluminum brand is best? Quality brands available at SGQ

SGQ Khlong Sam carefully selects quality aluminum brands that fully meet TIS standards. They are suitable for all types of work and all budgets. You can find more information on the aluminum profiles page at SGQ. The available brands are certified and widely trusted.

Which types of work is each aluminum brand suitable for?

• Thai Metal Aluminium meets AAMA standards. It has a smooth and attractive aluminum surface, is resistant to sunlight and rain, does not peel, and is safe for people and the environment.
• ORM  is versatile and cost-effective, offering standard-level strength. It is suitable for those looking for good quality and reliable aluminum.
• Fuji Metal  is a premium option for high-quality work. Its aluminum profiles are strong, precisely shaped, beautifully finished, well-coated, and resistant to sunlight and rain.
• SMS Schimmer  offers attractive designs, sharp colors, and a smooth surface finish. It is suitable for large-scale projects such as showroom window panels, frameless panels, or decorative work.

Mistakes to avoid when choosing aluminum thickness

Based on the experience of the SGQ technician team, these are common mistakes customers often make:

• Choosing based on price alone: aluminum that is too thin may save money at first, but repair costs can be higher in the long run.
• Not considering the panel size: larger panels require thicker aluminum than smaller panels to support weight and wind load.
• Overlooking TIS standards: this increases the risk of using materials that have not been tested, which can affect safety.
• Not considering the environment: high-risk areas require suitable thickness and surface coating.
• Not consulting an expert before buying: an experienced store can help you choose correctly from the start, which is more cost-effective than fixing problems later.

Where can you buy quality aluminum profiles?

SGQ Khlong Sam is an aluminum store that provides a complete range of materials, accessories, and expert consultation for installation work.

Reasons why professional technicians choose to buy from us:

• There are aluminum samples in different thicknesses available for real comparison.
• We offer a wide range of aluminum brands, including ORM, Fuji Metal, Thai Metal Aluminium, and Schimmer.
• Our expert team provides advice on choosing the right aluminum profiles for each type of work and installation area.
• We sell complete door and window accessory sets, so you do not need to spend time buying from other stores.
• Free accessory removal service with no additional cost.
  
• Delivery service is available, along with impressive after-sales service.

Good aluminum thickness means work you can trust

Choosing the right aluminum for the job is not only about price. You should also consider:

• • Aluminum thickness that suits the type of work
    
  • Brands that meet TIS aluminum standards
    
  • A store that provides expert advice and has real experience
    

Interested in quality aluminum with standard thickness?

Choosing the right aluminum thickness is a worthwhile long-term investment. The selection guidelines can be summarized as follows:

Consider the type of work: each type of door and window requires a different aluminum thickness.

Consider the size and installation area: the larger the panel or the higher the risk of the installation area, the greater the thickness required.

Choose brands that meet TIS standards: this helps ensure that the materials are certified for quality.

Consult an expert: an experienced store can provide advice that suits your specific needs.

If you are looking for quality aluminum with expert advice, SGQ Khlong Sam is ready to serve you. We can help you choose the right thickness, the brand that fits your budget, and the necessary accessories for a complete door and window installation.

Contact the expert team at SgQ Khlong Sam We offer a complete selection of ORM, Fuji Metal, Thai Metal Aluminium, and Schimmer, along with helpful advice for both beginners and professional technicians. Visit our store or add us on LINE to ask for more details.