Container House Air Conditioner Bracket

When installing an air conditioner in a container house, the air conditioner bracket usually needs to be purchased separately or confirmed to be provided by the installer, and it must meet the load-bearing requirements of the new national standard GB/T 17790-2025 (≥4 times the self-weight of the air conditioner and ≥200 kilograms). It is recommended to prioritize hot-dip galvanized steel or 304 stainless steel for the material.

1. Purchase Responsibility and Cost of the Bracket

In most cases, users need to purchase the air conditioner bracket themselves or confirm the provision method with the installer. The installation technician may carry the bracket and charge separately. The cost varies depending on the brand, material, and wall type:

• Ordinary galvanized steel bracket: For wall-mounted units (1-1.5 horsepower), 30-50 yuan per pair; for floor-standing units (2-3 horsepower), 60-100 yuan per pair.
• 304 stainless steel bracket: For wall-mounted units, 50-80 yuan per pair; for floor-standing units, 100-150 yuan per pair.
  If the wall is made of hollow bricks, is in an old residential area, or requires longer screws for fixation, additional drilling or reinforcement fees may be charged. Users have the right to choose to purchase the bracket themselves, but they need to ensure that it meets the national standard and provide a certificate of conformity; otherwise, the installer may refuse to install it.

2. Safety Requirements for Material and Load-Bearing

According to the new national standard, the material and load-bearing capacity of the bracket are core safety indicators:

• Material: It is recommended to prioritize hot-dip galvanized steel (zinc layer ≥ 65μm) or 304 stainless steel. Ordinary galvanized steel brackets are prone to rust, and their load-bearing capacity decreases over long-term use. Hot-dip galvanized steel has a corrosion-resistant lifespan of more than 15 years, and 304 stainless steel is completely maintenance-free.
• Load-bearing: The load-bearing capacity of the bracket must be ≥4 times the self-weight of the outdoor unit of the air conditioner and at least ≥200 kilograms. For example, a 1.5-horsepower outdoor unit (about 35-40 kilograms) requires a bracket with a load-bearing capacity of ≥200 kilograms; a 3-horsepower outdoor unit (60-70 kilograms) requires ≥280 kilograms. Users in coastal typhoon areas or high-rise buildings need higher standards to avoid breakage caused by strong winds or rust.

3. Special Considerations for Container Houses

The wall material (such as metal or composite panels) and structure of a container house may affect the installation method of the bracket:

• If the wall cannot bear the load directly, a thickened steel bracket (such as a steel plate more than 3mm thick) combined with expansion bolts or embedded parts, or a custom non-standard bracket (such as an L-shaped or U-shaped bracket) should be used to adapt to special installation angles.
• In plain areas like Xuzhou, due to the diversity of building types, if the wall has limited load-bearing capacity or the outdoor unit has a special size, a professional assessment is required to customize the bracket to ensure safety and stability.