Commercial Window 40mm is suitable for use in a wide range of applications including low and high rise buildings, Industrial buildings, educational buildings or when a simpler frame section is required. Both awning and casement windows are available and hinged doors can be integrated simply into the configuration if required.

Comm Win Table

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Commercial Window 40mm - Design

The 40mm Commercial Window has been designed to provide a practical solution for low and high rise commercial buildings as well as use in residential projects.

The key objectives of the design were to provide:

These objectives are met through key design features in 40mm Commercial windows which include:

The split mullions eliminate the need for bulky coupling when long runs of windows are required whilst meeting the seismic/expansion requirements needed in many situations.


Maximum sizes for awning, casement, fixed windows and sashes varies by width, height, wind zone and glazing requirement. Your local Bradnam's branch will be able to advise whether a configuration is possible.

As a guide fixed window panels up to 2.0m height 1.2m wide are recommended with sashes of 1.8m x 1.2m. Other sizes are possible please contact you local Bradnams fabricator for advice.

Note: For compliance with NZS 4211:2008 or NZ Building Code F4 safety from falling, a security stay, safety latch or restrictor must be used for certain sash sizes.


Frame Types

Glazing, Beads and Sash Types

Mullions and Transoms, Corner Posts and Coupling Bars

Mullions and transoms are often chosen to add strength to the window to cope with higher wind loads:



Custom flashings are normally required for commercial installations. These are available from your local Bradnam's branch.

A standard range of flashings include 95mm, 84mm,71mm, 68mm, 63mm, 58mm, 53mm, 48mm, 45mm, 41mm, 38mm, 31mm, 25mm and 14mm. These have been designed to comply with E2/AS1 Amendment 6 requirements.



In addition to the usual range of window hardware, casement hinges are also available allowing many specialist designs to be created – refer to your local Bradnam's branch for advice.



Please refer to Jambliners section.