Professional Architrave Calculator for Carpentry Projects
The Reptile Jigs Architrave Calculator helps carpenters, joiners, and fitters produce accurate architrave cutting lists in seconds. Choose from common UK door widths, switch between single or double door sets, and instantly calculate the exact header and side lengths required.
Adjustable settings include architrave margin, door gap margin, frame height, and architrave width so the results match on-site specifications. The tool supports internal and external measurement modes, generates grouped quantities for headers, left sides, and right sides, and stores preferences for future jobs.
Door sizes from 457mm to 926mm
Single and double door calculations
Internal and external cut measurements
Instant cut lists with grouped quantities
Mobile friendly and free to use
About the Architrave Calculator
The Architrave Calculator is a professional tool designed for carpenters and joiners who need to calculate precise architrave measurements for door installations. Architraves, also known as door casings or door trims, require accurate cutting to achieve professional finishes, and this calculator takes the guesswork out of the process.
Our architrave calculator supports both single and double door configurations, with the ability to switch between internal and external measurements. The tool calculates header lengths, side heights, and provides a grouped cut list that's ready for on-site use. Adjustable settings for architrave width, frame height, and margins ensure accurate results for any installation.
Key Features
Calculate internal and external architrave measurements
Support for single and double door configurations
Adjustable architrave width, frame height, and margins
Visual measurement line showing internal/external differences
The architrave calculator is trusted by UK construction professionals for accurate door trim calculations. Whether you're working on residential or commercial projects, this tool helps you achieve perfect architrave installations with minimal waste. The ability to switch between internal and external measurements is essential for understanding how architraves should be cut for different applications.
For more information about joinery best practices and door installation techniques, visit CITB (Construction Industry Training Board) or consult British Woodworking Federation for industry standards.
