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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Aluminum Graduated T-Squares
Alvin Drafting$11.60 - $25.95This lightweight aluminum T-square is useful creating your drafts - The sleek and efficient design makes sure that you are will equipment with creating straight lines for your perspective layout or design layouts.Features: Aluminum blade is 1.5"W x... -
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... -
C-THRU 7" Goniometer Quick Angle Protractor Measuring Tool
Westcott$6.35Quick Angle Protractor with 7" Rotating Arms – Measure Angles with Precision This Quick Angle Protractor features 7" arms that rotate around the center scale, allowing for fast and accurate angle measurements. The arms open up to 12" wide and include... -
C-Thru 8" L-Square
Westcott$6.90Transparent plastic square is laminated for durability. Each leg is graduated in 8ths with an edge in 16ths and centimeters.Features: 8"/17cm plastic L-Square in inches and metric measurementsEach leg has an 8ths graph with an edge in 16ths and... -
C-THRU Acuspec II Type Gauge & Specifier Set
Westcott$13.90Ideal for layout, design and type specification, this professional set contains a type gauge and a type specifier, each measuring 4-1/2" x 12-3/8". Each has accurate fine calibrations on a non-glare surface for full visibility. Each is flexible for... -
C-THRU Beveled Pica Ruler
Westcott$6.30Ideal for graphic artists, this clear plastic 18" ruler is marked in picas, agates and 1/8" graduations. Measure with ease and confidence - an essential addition to your workspace.Features: 18" Inch/Pics/Agate Scales RulerInch, Pica and Agate... -
C-THRU Flexible Plastic Rules
Westcott$1.05 - $1.25This handy ruler is a must-have for classrooms, workshops, studio and students. It features 1/16" markings on one edge and a metric scale on the opposite edge.Features: Flexible 6" or 12" inch/metric plastic ruler16th to the inch markings on one... -
C-Thru Graphic Arts Leading Gauge Ruler
Westcott$4.95This ruler is an essential tool for anyone in the graphic arts - whether you are redesigning something you don't have a soft copy of, matching styles or proofing your work, this ruler has you covered. This graphic arts ruler includes scales in picas,... -
Center Finding Rulers
Alvin Drafting$6.20 - $34.75Quickly find the center of anything by matching up the measurements on each side of zero. This ruler is made to help students in measuring, dividing, and gauging layouts. These centering rulers are designed for accurate and reliable... -
Circle Ruler
Helix$4.70This dual-purpose ruler also works as a compass, allowing the you to make circles from 1/16" to 12" in diameter. A useful tool for draftsmen, students, artists and crafters who require precise, measured lines. Great for mathematic calculations, technical... -
Circular Protractors
Alvin Drafting$2.50 - $6.80The 360° protractor with a center cutout and finely beveled edges is designed for easy lifting and maneuvering, making writing and drawing simple and convenient. Made of durable 0.08-inch thick polystyrene, this protractor boasts long-lasting,... -
Circular Protractors - 360 Degree
Pacific Arc$2.20 - $5.90Professional Protractors made from pure clear acrylic to ensure long life and value. Graduations are etched onto the surface to prevent wearing off. Individually poly-wrapped. 360 degrees: 4", 6", 8" -
Classic Printers Line Gauge
Pacific Arc$5.90 - $13.45BulletsFeatures: Printers Line GaugeAvailable in 3 lengthsInches, agate, pica and pointsSolid stainless steelDescriptionThe Classic Printers Line Gauge is an essential tool for professionals in design, printing, and typography. Crafted from durable...
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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