Foshan AMJ Windows and Doors Co., Ltd.

Use this window rough opening size chart to calculate AMJ frame sizes, measure openings correctly and prepare a window schedule for custom aluminum windows.

Learn how to compare aluminum window quotes by checking sizes, glass, frame systems, hardware, screens, accessories, packaging, freight, warranty and exclusions.

A practical guide for builders choosing aluminum windows for townhouse developments, including repeatable sizes, glass, ventilation, privacy, delivery and installation.

Learn how builders can reduce aluminum window costs by simplifying sizes, glass, finishes, hardware and delivery while protecting required performance.

A practical guide to window U-factor, SHGC and design pressure for builders comparing custom aluminum windows for residential and commercial projects.