Find HS Code and trade information for aluminum cills

Aluminum Cills

Aluminum cills are exterior trim pieces used in construction, primarily to protect and finish the bottom edge of windows, doors, and siding installations. They serve as a transition between the window/door frame and the exterior cladding of a building.

Material:

Aluminum is the primary constituent, typically alloyed for strength, durability, and corrosion resistance. Common alloys include 6063 and 3003. The aluminum is often finished with a coating such as paint, anodizing, or powder coating for enhanced protection and aesthetic appeal.

Purpose:

• Weather Protection: The primary function is to deflect water away from the window or door opening, preventing water damage to the structure and interior finishes.
• Structural Support: Provides a stable base for the window or door installation, contributing to a watertight and secure fit.
• Aesthetic Finish: Conceals the gap between the window/door frame and the exterior wall, providing a clean and professional appearance.
• Protection of Substrate: Shields the underlying building materials from the elements and potential damage.

Function:

Aluminum cills work by extending horizontally from the bottom of the window or door frame. They are designed with a slight slope to encourage water runoff. The cill often incorporates a drip edge to further direct water away from the wall. They are typically installed with fasteners and sealant to create a watertight barrier.

Usage Scenarios:

• Residential Construction: Commonly used in new home construction and window/door replacements.
• Commercial Buildings: Applied in office buildings, retail spaces, and other commercial structures.
• Renovation Projects: Used to replace damaged or deteriorated existing cills or to upgrade the appearance of windows and doors.
• Siding Installations: Used in conjunction with various siding materials (vinyl, wood, fiber cement) to provide a finished edge and weather protection.

Common Types:

• Standard Cills: Basic design with a drip edge, suitable for most applications.
• J-Channel Cills: Feature a J-channel to receive the bottom edge of siding, providing a seamless integration.
• F-Channel Cills: Similar to J-channel cills, but with a different profile.
• Receiving Cills: Designed to receive the bottom edge of a window or door unit, often used in replacement applications.
• Brickmold Cills: Designed to mimic the appearance of traditional brickmold trim, often used in historic renovations.
• Custom Cills: Fabricated to specific dimensions and profiles to meet unique architectural requirements.
• Integrated Cills: Designed as part of a complete window or door system, offering a streamlined installation.

Aluminum cills fall under the category of parts of structures prepared for use in structures, specifically doors and windows and their frames and thresholds for doors.

Here are the relevant HS codes:

• 7610100020: Aluminum structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge-sections, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, balustrades, pillars and columns); aluminum plates, rods, profiles, tubes and the like, prepared for use in structures: Doors, windows and their frames and thresholds for doors. Thresholds for doors.

  • 76: Aluminum and aluminum articles. This chapter covers a wide range of aluminum products.
  • 10: Aluminum structures. This heading specifically focuses on aluminum structures and parts thereof.
  • 00: This subheading further specifies doors, windows, their frames, and thresholds for doors.
  • 20: Specifically identifies thresholds for doors.

• 7610100010: Aluminum structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge-sections, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, balustrades, pillars and columns); aluminum plates, rods, profiles, tubes and the like, prepared for use in structures: Doors, windows and their frames and thresholds for doors. Windows and their frames.

  • 76: Aluminum and aluminum articles.
  • 10: Aluminum structures.
  • 00: Doors, windows, their frames, and thresholds for doors.
  • 10: Specifically identifies windows and their frames.

Tax Information:

Both HS codes 7610100020 and 7610100010 share the following tax details:

• Basic tariff: 5.7%
• Additional tariff: 7.5%
• Tariff after April 2, 2025: Additional tariff of 30% for steel and aluminum products.
• Total tariff: 68.2%