Shop drafting scales for architecture, engineering, mechanical drafting, technical drawing, design layouts, and professional measurement applications. Drafting scales, triangular rulers, and triangular scale rulers are precision measuring tools used to create and read scaled drawings, construction plans, engineering layouts, and technical illustrations.
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6" Flat Pocket Engineering Scale
Alvin Drafting$6.70The Alvin Drafting 6" Plastic Engineer Scale is a professional-grade ruler ideal for students and professionals in engineering and architecture, featuring six different scales for accurate measurements. Crafted from high-quality plastic alloy with a... -
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" Four-Bevel Engineer Scale
Pacific Arc$7.00This Pacific Arc 6" Engineer Scale features premium high-impact plastic and finely etched graduations.Engineer Graduations:Fully Divided: 10, 20, 40, 50 parts to the inchFeatures: Etched graduations on each beveled edgeConstructed from high impact... -
6" Pocket Aluminum Architectural Scale
Alumicolor$5.45The pocket scale, compact and lightweight like a pen, offers portability and convenience for both students and professionals alike. Crafted from high-quality extruded aluminum, it ensures durability and precision in measurements. Utilizing a photo... -
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" 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... -
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... -
Engineer Drawing Tool Set
Alumicolor$30.40Alumicolor's Engineers Drawing Sets combine key products in one easy-to-purchase, cost-effective package. All products are made from solid aluminum and calibrations are photo anodized. The anodizing process makes all markings a permanent part of the... -
Scale Template
Pickett$8.85Pickett templates have been designed to conform to the exacting demands of the professional architect, draftsperson and engineer.Features: Handy pocket rule with six printed scales in 1/10", 1/20", 1/30", 1/40", 1/50" and 1/60" Slots are included... -
Stainless Steel Engineer Flat Scale
Pacific Arc$3.20 - $25.75A Pacific Arc original, scaling rulers are constructed from solid stainless steel and feature architectural and engineering graduations not usually found on metal rulers. Extremely sturdy, they are ideal for on-site work. Graduations : 10,...
Types of Drafting Scales
Drafting scales are specialized measuring tools designed for reading, creating, and transferring scaled measurements in technical drawings and design layouts. This category includes architect scales, engineering scales, combination scales, mechanical drafting scales, metric scales, triangular rulers, ruler triangular designs, and triangular scale rulers used by architects, engineers, designers, students, and drafting professionals.
- Architect Scales: Support architectural floor plans, elevations, blueprints, and building design layouts using fractional scale systems
- Engineering Scales: Use decimal graduations for civil engineering, surveying, infrastructure layouts, and technical drawing applications
- Combination Scales: Combine multiple drafting scale systems into a single measuring tool for flexible drafting workflows
- Mechanical Drafting Scales: Provide specialty graduations and precision measurement systems used in mechanical and technical drawing applications
- Metric Scales: Support metric drafting, engineering layouts, international standards, and STEM education applications
- Triangular Rulers: Offer multiple scale graduations on a compact three-sided ruler design for efficient drafting and measurement work
- Triangular Scale Rulers: Help users quickly switch between multiple drafting scales while maintaining accurate layout measurements
Understanding Drafting Scales
Drafting scales are essential tools used to convert real-world dimensions into scaled technical drawings and layouts. Architects, engineers, designers, and drafters use scale rulers to accurately read and create drawings that represent buildings, infrastructure, machinery, products, and technical systems at reduced or enlarged sizes.
Triangular rulers remain one of the most popular drafting scale formats because they allow multiple scale graduations to be combined into a compact and efficient measuring tool. A triangular scale ruler helps streamline drafting workflows by allowing users to switch quickly between different scale systems without changing tools.
Drafting Scales in Architecture & Engineering
Different drafting disciplines rely on different scale systems. Architect scales commonly use fractional measurements found in building plans and construction drawings, while engineering scales use decimal graduations often preferred for civil engineering and technical layouts.
Mechanical drafting scales and metric scales support additional technical applications requiring specialized graduations and international measurement standards. Using the proper drafting scale improves layout accuracy, readability, and consistency throughout technical drawing workflows.
Choosing the Right Triangular Scale Ruler
When selecting drafting scales, consider the drafting discipline, graduation system, material, edge style, and intended application. Triangular rulers are popular because they provide multiple scale systems in a single compact tool, while flat drafting scales may offer larger graduations and easier readability for specific workflows.
Professional drafting scales are designed with accurate graduations, durable materials, and clear markings that remain readable during repeated technical use. Choosing the correct scale ruler helps improve measurement accuracy and workflow efficiency in drafting, architecture, engineering, and design environments.
Complete Your Drafting Workspace
Pair drafting scales with drafting pencils, technical pens, triangles, templates, and drafting paper for accurate technical drawings and professional layout applications.
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