Shop engineer scales for civil engineering, surveying, technical drawing, blueprint reading, and drafting applications. Engineering scale rulers and triangular engineer scales help create and interpret scaled technical plans, infrastructure drawings, and engineering layouts.
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12" Engineer AlumiDrafter
Alumicolor$7.85The AlumiDrafter™ is the newest addition to Alumicolor’s long line of innovative drafting products. Invented by a practicing architect, this multi-use tool gives the user all the advantages of a traditional triangular scale in addition to many other... -
12" Engineer Select-A-Scale
Alumicolor$15.70Alumicolor Engineer Select-a-Scale are an ultra convenient and functional drafting tool that allows engineers to select multiple scales all in one product. The unique design incorporates a sculptured arch on the bottom for ease of movement. A rotating... -
12" Four Bevel Engineering Scale
Pacific Arc$9.30The 12" flat engineer scale is a professional-grade tool for precise engineering drafting. Its 4-bevel design and etched graduations ensure accuracy, while high-impact plastic construction guarantees durability. With fade-resistant markings, it remains... -
12" Four-Bevel Engineer Scale
Alvin Drafting$10.60The 12" Engineer Scale Ruler boasts sharp graduations designed to withstand wear, guaranteeing clear readability of both English and metric measurements. Its adaptable design caters to architects, engineers, draftsmen, students, and professionals... -
12" Professional Engineer Scale
Alvin Drafting$11.70Built specifically for engineers and mechanical drafting professionals, this triangular scale delivers crisp readability, reliable accuracy, and long-lasting performance. With machine-engraved graduations and a thoughtfully designed matte finish,... -
12" Scholastic Mechanical Engineer Scale
Pacific Arc$4.95Economy triangular scales are white and ideal when budgets are at a minimum. High quality plastic promises strength and demonstrates long-lasting calibers.Mechanical Engineer GraduationsOpen divided: 1/8, 1/4, 1/2, and 1 inch to the foot;... -
12" Two-Bevel Mechanical Engineer Scale
Pacific Arc$9.30Classic 12" plastic two bevel plastic scale. Finely etched graduations for years of use. Scales: 1/16 and 1/32 size, Fully DividedMechanical Engineer Graduations Combo Fully Divided: 1/16 (192 ft) & 1/32 (384 ft) Features: Etched graduations... -
4" Engineer Color-Coded Scale
Alumicolor$7.65The 4" color-coded solid triangular engineer scale, crafted from premium extruded aluminum, features exceptionally smooth edges. Each side is distinguished by a unique color-coded groove, facilitating easy identification of your calibrations... -
6" Aluminum Engineer Scale
Alumicolor$7.20Alumicolor Architect and Engineer 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... -
6" Color-Coded Engineer Scale
Pacific Arc$6.20The Pacific Arc Collegiate Plastic Architect Triangular Scales offer color-coded quality for accurate performance on a budget. Made with high-quality heavy plastic, these scales are ideal for drafting, architects, or students on the go. The... -
6" Color-Coded Engineering Scale
Alvin Drafting$7.70High-quality scales made from high-impact plastic with white, nonreflecting, matte faces and tapered edges. Printed graduations and colorcoded furrows.Engineer Graduations 10, 20, 30, 40, 50, 60 parts to the inch. Features: 6" Engineer Pocket Drafting... -
6" Engineer Color-Coded Scale
Alumicolor$8.30Crafted from high-quality extruded aluminum, the 6-inch color-coded engineer solid triangular scale boasts ultra-smooth edges for precision. Each side is marked with a distinctive color-coded groove, making it effortless to identify and calibrate... -
6" Engineer Select-A-Scale
Alumicolor$11.85Alumicolor Engineer Select-a-Scale are an ultra convenient and functional drafting tool that allows engineers to select multiple scales all in one product. The unique design incorporates a sculptured arch on the bottom for ease of movement. A rotating... -
6" Engineer Triangular Scale
Pacific Arc$9.10Professional Premium Plastic Triangular Scales - Color Coded Premium plastic ore triangular scales provide precise graduation etched on premium white color-coded plastic for exact performance.Engineer Graduations Fully divided: 10, 20, 30, 40, 50, & 60... -
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" 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... -
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 Engineering Scales
Engineer scales are specialized drafting rulers designed for decimal-based measurement systems and scaled technical drawing applications. This category includes civil engineer scales, engineer triangular scales, engineer pocket scales, scholastic engineer scales, and professional drafting scales used by engineers, surveyors, designers, students, and drafting professionals.
Engineering scales are available in aluminum, stainless steel, and durable plastic designs for classroom, office, field, and professional drafting environments.
- Triangular Engineer Scales: Combine multiple engineering scale graduations into a compact three-sided drafting ruler
- Flat Engineering Rulers: Offer larger graduations and improved readability for classroom, office, and field applications
- Civil Engineer Scales: Support decimal-based layouts, surveying applications, infrastructure plans, and technical drawings
- Engineer Pocket Scales: Provide portable measurement tools for field work, site visits, and mobile drafting applications
- Scholastic Engineer Scales: Provide easy-to-read graduations for students, STEM education, classroom drafting, and introductory engineering applications
- Professional Engineering Scales: Feature precision graduations and durable materials designed for repeated technical use
Understanding Engineering Scale Systems
Engineering scales use decimal-based measurement systems to convert real-world dimensions into scaled technical drawings and layouts. Unlike architect scales, which commonly use fractional scales, engineer scales are typically graduated in divisions such as 10, 20, 30, 40, 50, and 60 parts per inch for civil engineering and technical layout applications.
Engineer triangular scales remain popular because they combine multiple engineering graduations into one compact measuring tool, allowing quick transitions between different scales during drafting and layout work. Professional engineers and surveyors often prefer triangular engineer scales because they are easy to use across office, classroom, and field environments.
Common Engineering Scale Graduations
Engineering scale rulers commonly include decimal graduations used for civil drawings, site plans, mapping, and technical layouts.
- 10 Scale: Used for drawings where each inch is divided into 10 equal parts
- 20 Scale: Common for site plans, civil layouts, and larger-scale technical drawings
- 30 Scale: Often used for engineering drawings, mapping, and infrastructure layouts
- 40 Scale: Useful for technical plans requiring additional decimal scale options
- 50 Scale: Supports larger civil and engineering layouts where reduced drawing size is needed
- 60 Scale: Common on triangular engineer scales for broader engineering and drafting applications
Choosing the Right Engineering Scale Ruler
When selecting an engineer scale, consider the graduation system, ruler format, material, portability, and intended application. Triangular engineering scales provide multiple scale systems in a compact design, while flat engineering rulers may offer improved readability for certain workflows.
Professional engineering scale rulers are available in aluminum, plastic, and stainless steel for classroom, office, field, and drafting applications. Engineer pocket scales are especially useful for portable measurement tasks and mobile engineering workflows.
Complete Your Engineering Drafting Workspace
Pair engineering scales with drafting pencils, drafting triangles, technical pens, templates, and drafting paper for accurate technical layouts and professional engineering drafting applications.
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