MrWindow is a specialized mobile application designed for professionals and DIY enthusiasts involved in window construction and replacement. This free Android app simplifies the measurement process by allowing users to input the height and width of windows, which the app then uses to generate precise calculations for frame dimensions, stile and rail sizes, and other essential metrics. The intuitive interface is tailored for efficiency, making it suitable for both job sites and workshops.

Key features of MrWindow include automated window calculations, a custom cut sheet generator, and a smart board list builder that minimizes waste by recommending the exact materials needed. The app supports both standard and custom builds, ensuring versatility for various projects. With a focus on accuracy and ease of use, MrWindow is an invaluable tool for woodworkers, carpenters, contractors, and anyone involved in window design.