Introducing the aluminum Triangular Architect Scale Ruler by POWERTEC. The triple-sided triangular scale ruler is commonly used for drafting floor plans (and blueprints) of houses, assessing orthographic projections and average sized structures.   It was designed to make drawing manageable in size, while allowing a decent amount of info to be documented.  This handy architectural scale ruler was constructed out of premium quality anodized aluminum, providing a reliably accurate, yet sturdy drafting tool.   Possessing more than six different scales to choose from, you’ll find the color-coded grooves provide a fast and efficient means of selecting the desired scale.   No matter whether you’re a novice or experienced builder, this triangular drafting ruler helps provide precision and quality results. Perfect drafting tool for: ArchitectsArtistDesignersEngineersTeachers & StudentsHow to use the POWERTEC Triangular Architect ScaleFirst, find the scale that matches the scale of the drawing.   Align the zero mark of the scale with one side of the object being measured and obtain the foot measurement on the other side.   Shift the tool slightly to align the end of the line with the closest foot mark with the opposite end of the scale that contains the smaller divisions.   Find the inch mark that lines up with the end of the line being measured.   PLEASE NOTE:   An architect's scale is read from the left or right side depending on the scale being used.