Metric Roofing Tables

Additional information is provided on wall plate and gable strapping wind bracing truss clips and other roofing metalwork and tools and equipment.

Metric roofing tables.

Perpendicular to the roof ridge dormer rafter. A rafter that sits on top of the main roof without cutting into the main roof. Whether you are working on rafter layout or just need a quick 45 or 90 angle measurement empire is committed to delivering the most refined accurate and easy to use layout square. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run.

Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. For example this rafter would be used when remodeling or adding on to an existing structure figures 1 and 2 on the next page show each type of rafter. This article explains how to make quick use of a framing square and its imprinted data to get some basic roof measurement data like roof pitch or slope rafter lengths and end cuts. Select output fraction precision decimal inch or metric mm.

A carpenter s framing square includes some tables stamped right into the tool itself. Select and re calculate to display. Rafter squares are an essential part of any carpenter s measurement tools and equipment. Fraction precision set 1 8 1 16 1 32 1 64 decimal inch metric.

Square up with scribe guide.