Architect's scale rulers by Alvin, Fairgate and Alumicolor. Professional-quality architects scales constructed of durable hardwood, aluminum, plastic, or bamboo core. An architect's scale is a specialized ruler used in the drafting and measuring of architectural drawings, such as floor plans. Because the scale of such drawings are often smaller than life-size, an architect's scale ruler includes multiple units of length and proportional length increments. Available in triangular and beveled flat configurations. Choose the architects drafting ruler that best fits your specific job, style, and budget. We have a architect ruler for both professionals and students.