Shop drafting rulers, scales, and measuring tools for technical drawing, engineering, architecture, drafting, geometry, and layout applications. Precision measuring tools help create accurate dimensions, straight lines, scaled drawings, and controlled layouts for professional drafting and design workflows.
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6" Four-Bevel Aluminum Architectural Scale
Alumicolor$7.20Alumicolor Architect6" Four Bevel Scales are precision measuring and drawing devices. Alumicolor's photo anodizing process make the calibrations a part of the aluminum providing a smooth, tick-free finish and markings that will resist wear and rubbing... -
6" Four-Bevel Architect Joist/Truss Scale
Alumicolor$7.20Alumicolor Joist/Truss Scales are accurate, quality 4 bevel scales, which will be a BIG hit with architects, builders, roofers, framers and lumber yards. The (3/16", 3/32") scales are used frequently for measuring reduced plans. Architect... -
6" Four-Bevel Architectural Scale
Pacific Arc$7.00The 6" beveled architect's scale is a durable precision tool with etched graduations on each edge for accurate measurements. Constructed from high-impact plastic, it ensures longevity and reliability, with markings that won't fade or rub off. A favorite... -
6" Pocket Aluminum Combination Scale
Alumicolor$5.45Alumicolor 6" Pocket Scales are a smaller version of the 12" professional solid scale. The pen-size, lightweight design provides professionals and students with a scale that can be taken anywhere.Combination Graduations Architect Scales - 16 & (1/8,... -
6" Pocket Aluminum Engineers Scale
Alumicolor$5.45Alumicolor 6" Pocket Scales are a smaller version of the 12" professional solid scale. The pen-size, lightweight design provides professionals and students with a scale that can be taken anywhere.Engineer Graduations 10, 20, 30, 40, 50, 60 parts per... -
6" Pocket Rule
Alvin Drafting$4.306" Stainless Steel English Pocket RuleFeatures: Stainless Steel Etched Graduations Graduated in 16ths, 32nds, and 64ths Pocket clip doubles as depth gauge Fraction/decimal equivilent chart on back of scale -
6" Protractor Ruler
Westcott$2.10This transparent 180 protractor ruler has scales in both 1/16" and centimeter calibrations. The SW-51 also has 45 and 60 triangle cut-outs plus a French curve symbol. Features: Transparent 180* protractor ruler45* and 60* triangle cut outs plus French... -
6" Protractor Ruler - 10 & 20 Parts to Inch
Westcott$3.60Combination protractor/scale/ruler for fast preliminary layouts. Graduations designed for civil engineers, surveyors, and general use.Features: 10 & 20 Parts to Inch180 degree protractor with tenths and 20ths to the inch scalesTransparent... -
6" Protractor Ruler-1764364609
Westcott$2.40Westcott 6"/15cm Protractor Ruler 180° protractor ruler has 8ths graph, 16ths to the inch and centimeter scales. It is laminated for durability and features a translucent color to allow for viewing through to the page. Westcott Drafting & Drawing Tools... -
6" Rolling Parallel Ruler
Alvin Drafting$8.40A multi-purpose drawing tool made from high impact plastic for students, artists, and designers. Features: Graduated in both English and metric. Includes many useful formulas and conversion factors. Draw horizontal and vertical parallel... -
6" Swing Arm Protractor
Helix$2.90This 6" protractor features a swing arm for precise measuring of angles. A go-to tool for students, draftsmen and engineers.Features: Integrated arm helps draw accurate anglesBeveled edge for better accuracyTransparent plastic for easy measuringSturdy,... -
6" x 12" Frosted Acrylic Ruler
Olfa$20.15The OLFA Frosted Advantage Acrylic Ruler delivers precision cutting and measuring for quilting, crafting, and detailed fabric work. This professional-grade ruler combines traditional straight-edge functionality with innovative pivot-point technology,... -
Aluminum Proportional Designer L-Square
Alvin & Co.$17.90Proportional scale for both reductions and enlargements up to 32" -
Angle and Circle Maker
Helix$5.60This circular protractor rotates freely, enabling you to draw angles like a protractor and circles like a compass. The center disc includes slots for drawing angles up to 360° and holes for creating circles ranging from 1/8" to 4" in diameter... -
Architect Drawing Tool Set
Alumicolor$30.40Alumicolor’s® Architect Drafting Sets offer a convenient, cost-effective package that combines essential drafting tools. Each product is made from solid aluminum, with calibrations that are photo anodized to ensure permanent, wear-resistant markings... -
C-THRU 1" x 12" Standard Graph Ruler
Westcott$3.20The 12" 8ths Beveled Ruler is a lightweight, clear ruler designed for precision and convenience. It features handy grid patterns in inches, making it easy to achieve accurate measurements. Additionally, it includes a zero centering scale, allowing you to... -
C-THRU 1" x 6" Standard Graph Ruler
Westcott$2.70The 6" 8ths Beveled Ruler is a lightweight, clear ruler featuring convenient grid patterns in inches, ideal for precise measurements and designs. It includes a zero centering scale, allowing you to measure equally left and right from a centered starting... -
C-Thru 18" Graphic Arts Ruler
Westcott$4.60This professional quality 18" ruler features an engineering scale as well as inches, picas and agate calibrations. This dynamic ruler also includes proofreading symbols, printer' s rulers, screen density guides, copy casting system and typewriter copy... -
C-THRU 2" x 12" Standard Graph Ruler
Westcott$3.30This graphed plastic ruler features beveled edge for smudge-free inking in 1/16" increments.Features: 2" x 12" 8ths Graph Beveled RulerEdges calibrated in 16ths to the inch and beveled to accommodate work with ink.Zero centering scale.Transparent for... -
C-THRU 2" x 18" Standard Graph Ruler
Westcott$6.10This graphed plastic ruler features beveled edge for smudge-free inking in 1/16" increments.Features: 18" 8ths Beveled edge graph rulerCalibrated in 8ths to the inch on one side and centimeters on the otherZero centering scale, so you can measure...
Types of Drafting Measuring Tools
Drafting measuring tools are precision instruments designed to support technical drawing, scaled layouts, geometry work, engineering calculations, and architectural drafting. This category includes architect scales, engineer scales, drafting rulers, T-squares, triangles, straightedges, proportional scales, measuring tools, and layout instruments used by architects, engineers, designers, students, and drafting professionals.
- Architect Scales: Measure and create scaled architectural drawings using standard architectural scale ratios
- Engineer Scales: Support civil engineering, surveying, and technical layouts using decimal-based scale systems
- Drafting Rulers: Create accurate measurements, straight lines, and layout control for technical drawing applications
- T-Squares & Straightedges: Produce long, accurate horizontal lines and support parallel drafting workflows
- Proportional Scales: Help enlarge, reduce, and transfer measurements between drawings and layouts
- Measuring & Layout Tools: Support geometry construction, technical layouts, scaling, and precision measurement applications
Precision Measurement in Technical Drawing
Accurate measurement is one of the foundations of technical drawing and manual drafting. Drafting rulers, scales, and layout tools help architects, engineers, designers, and drafters maintain consistent dimensions, readable layouts, and precise drawing relationships throughout technical drawings and construction documents.
Before digital drafting became common, scales, triangles, T-squares, and straightedges were essential tools used to create engineering plans, architectural layouts, shop drawings, maps, and technical illustrations. Even today, precision measuring tools remain important for sketching, layout development, classroom drafting, field markups, and scaled drawing applications.
Understanding Drafting Scales
Architect scales and engineer scales are designed differently because they support different types of measurement systems. Architectural scales use fractional scale ratios commonly found in building design and floor plans, while engineer scales use decimal graduations commonly used in civil engineering and surveying applications.
Choosing the correct drafting scale improves measurement accuracy and helps maintain readable technical layouts. Many drafting professionals keep multiple scale types available depending on the drawing discipline and project requirements.
Choosing the Right Drafting Measuring Tools
When selecting drafting measuring tools, consider the type of drafting work being performed, the required measurement system, material durability, and the level of layout precision needed. Professional drafting rulers and scales are designed to provide accurate graduations, dependable edge quality, and long-term readability during repeated technical use.
T-squares and straightedges are especially important for maintaining accurate line alignment and geometry during manual drafting workflows. Combining multiple measuring tools helps create efficient and highly controlled drafting environments for architecture, engineering, design, and educational applications.
Complete Your Drafting Workspace
Pair drafting rulers, scales, and measuring tools with drafting pencils, templates, technical pens, and drafting paper for accurate technical layouts and professional drawing applications.
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