Setting Blocks – Essential Glass Support for Secure and Long-Lasting Glazing
Setting Blocks are critical components used in glazing installations to support the bottom edge of glass panes securely within window and door frames. Made from resilient, non-absorbent materials such as neoprene, EPDM, silicone, or polypropylene, these blocks cushion the glass’s dead load, prevent direct glass-to-frame contact, and ensure proper alignment and drainage, thereby protecting the glass and frame from damage and extending their lifespan.
Key Features:
- Supports Glass Dead Load Safely – Setting blocks provide a stable cushion that evenly distributes the weight of the glass on the rebate platform, preventing stress and potential breakage.
- Prevents Glass-to-Metal Contact – By maintaining clearance between glass edges and the frame, setting blocks avoid chipping, cracking, and damage caused by direct contact or vibration.
- Facilitates Drainage and Drying – Proper placement of setting blocks prevents glass edges from being submerged in water, reducing the risk of moisture damage and seal failure.
- Durable, Weather-Resistant Materials – Manufactured from elastomeric materials with a hardness of 50° to 90° Shore A durometer, ensuring flexibility, resilience, and resistance to weathering and chemical exposure.
- Compliant with Industry Standards – Designed to meet glazing standards such as NZS4223.1:2008, ensuring correct sizing, positioning, and performance for single and insulated glass units.
- Custom Sizes for Various Glass Thicknesses – Available in multiple thicknesses and lengths to accommodate glass from 3mm up to 28mm or more, tailored to the specific glazing application.
Installation Guidelines:
- Setting blocks are typically positioned at the quarter points of the glass width or as recommended by the glass manufacturer.
- Minimum thickness should be at least 3–6mm, with length calculated at approximately 25–50mm per square meter of glass area.
- Installed with the web facing upwards to maintain clearance and proper drainage beneath insulated glass units.
- Used alongside location and distance blocks to prevent lateral movement and maintain frame integrity.
Why Choose Our Setting Blocks?
Our setting blocks provide essential support and protection for glazing installations, ensuring safety, durability, and optimal performance. By preventing direct glass-frame contact and facilitating drainage, they reduce the risk of glass damage and seal failure, enhancing the longevity of windows and doors. Made from premium elastomeric materials, they deliver reliable cushioning and withstand environmental stresses.
Optimize your glazing projects with our high-quality Setting Blocks-engineered for precision, durability, and compliance with industry standards to secure your glass installations effectively.