Great for general interior design planning and drafting, durable Chartpak Pickett Architectural Templates are 0.13" thick and made with partially recycled plastic materials. Built-in risers and smooth apertures reduce smudged lines. The template scale is 1/4" = 1 ft (unless noted). - Chartpak Pickett Template - 1190i Duo Lavatory PlanningChartpak Templates, DUOLAV PLAN - The 5" × 9" template includes symbols used in planning and designing residential, institutional, and commercial lavatories. Dimensions are in inches and centimeters.