Tools

The following tools are available for your use. Each tool has listed to it on the right which browsers support these tools. If you are using a tool where the browser logo of the browser you are using is greyed out, that tool is either unavailable or its use is below optimal.

Span Calculator
This on-line utility provides a convenient reference for spans for common species of Canadian and U.S. dimension lumber, fully in accord with United States building codes and Federal Housing Administration [FHA] requirements. The information provided by this utility applies only in the United States. There is also a portable version available for download.
Board Feet Calculator
One board foot is the nominal quantity of lumber derived from a piece of rough green lumber 1 inch thick and 1 foot wide by 1 foot long. The Board Foot Calc calculates lumber quantities in various units of measure based on dimensions and length entered.
Stud Length Calculator
This tool is intended to assist in using wood for the design of tall walls in commercial and industrial structures and to provide a step-by-step guide to the design of these walls. The stud tables in this workbook are provided for lumber studs up to 6.1 m (20 ft.) and proprietary engineered wood studs up to 11.9 m (39 ft.). In addition, a detailed design example of manufacturing facility is provided describing structural, thermal and fire consideration for tall walls. This tool is addressing changes in the new edition of the National Building Code of Canada (NBCC 2005) and the CSA O86 Standard.
Dimensional Change Calculator
A wood detailing tool to help qualified professional designers estimate and account for dimensional change in new building construction. Wood shrinks when it dries and swells when it becomes wet. This on-line utility constitutes a quick and easy reference tool for calculating wood member dimensional changes due to changes in moisture contents.