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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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... -
15cm Aluminum Metric Architect Pocket Scale
Alumicolor$5.45The Alumicolor Metric Architect 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... -
15cm Four-Bevel Metric Scale
Pacific Arc$7.00The Pacific Arc 4-Bevel Flat Scales features finely etched graduations.Metric Graduations 1:1, 100, 20, 200, 5, 500, 1250, 2500 Features: Etched graduations on each beveled edgeConstructed from high impact plastic designed for longevity.Markings won't... -
15cm Metric Select-A-Scale
Alumicolor$11.85Alumicolor Metric 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 rod... -
18" Clear Graphic Arts Ruler
Alvin Drafting$7.7018" in length by 2" width. This graphic arts ruler is graduated in inches at both top and bottom and has a centering graduation in the middle.3mm thick clear plastic. -
18" Clear Plastic Junior T-Square
Westcott$9.25Lightweight and see-through, this 18"/45 cm junior plastic T-square makes page layouts simple. The clear body lets you underline notes, draw columns, and verify alignment quickly, while transparent edges keep ink lines crisp. Dual inch/metric scales and... -
18" Graphic Arts Pica Ruler
Westcott$6.1018" Westcott Transparent Pica Ruler – Zero-Centering, Column Spacing, and 16ths-Inch Graduations The 18" Transparent Pica Ruler by Westcott is a must-have tool for graphic designers, drafters, and layout professionals. Made from clear, durable plastic,... -
18" Stainless Steel Graphic Arts Ruler
Pacific Arc$10.45These versatile rulers are the perfect companion for professionals and hobbyists alike, featuring precise graduations in inches, agate, pica, and points for unmatched accuracy. Crafted from solid stainless steel, they ensure long-lasting durability and... -
24" Stainless Steel Flat Architect Scale
Pacific Arc$16.15Bullets Feature: Stainless Steel Etched graduations Accurate architectural measurements ARCH-III: 3/32, 3/16, 3/8, and 3/4 Inch increments Description A Pacific Arc original, constructed from solid stainless steel. ... -
25' Tape Measure
Pacific Arc$7.70Tape measures of 6', 25', 30' long and featured rugged design, our handy tape measure will make the perfection additional to any home. With a lock mechanism you can stretch the tape up to any point and lock it in place. Extends to 7 ft. without... -
25cm Metric Professional Parallel Glider
Alvin Drafting$32.30An easy-to-use instrument that combines the functions of a parallel straightedge triangle protractor T-square and compass in one. One of the most useful and convenient aids for drafting drawing and nautical applications. Smooth gliding action to easily... -
3" Triangle Stainless Steel Ruler
Alvin Drafting$6.10Made of durable stainless steel with etched inch graduations, this drafting triangle ruler is ideal for hobby and craft projects, drawing, drafting, and more. Its high strength and hardness make it perfect for woodworking, ensuring long-lasting use. The... -
3" x 4" L-Square Stainless Steel Ruler
Alvin Drafting$6.60Made of durable stainless steel with etched inch graduations. Ideal for hobby and craft projects. -
3.5" Mini Protractor
Alvin & Co.$0.95The Alvin Mini Protractor , measuring three and ½ inches, is a portable tool for measuring angles and circles.Features: Size: 3 ½ inchesGraduations clearly divided into 1° incrementsWith cut-out center for easy handlingColor: Clear -
30cm Aluminum Metric Architect Triangular Scale
Alumicolor$13.00Alumicolor Triangular Drafting Scales are made of extruded aluminum. Alumicolor's photo anodizing process makes the calibrations a part of the aluminum, providing a smooth, tick-free finish and markings which are resistant to cleaners and solvents... -
30cm Aluminum Metric Architect Triangular Scale-1764149815
Alvin & Co.$16.10High-quality anodized aluminum scales have a large profile, solid core, and tapered edges. Printed black graduations. Supplied in a hard plastic case.30cm metric scale with the following graduations: 1:500, 1:1000, 1:1250, 1:1500, 1:2000, 1:2500. -
30cm Aluminum Metric Architectural Scale
Alumicolor$9.15Alumicolor triangular Hollow Drafting Scales are made of extruded aluminum. The Alumicolor photo anodizing process makes the calibrations a part of the aluminum, providing a smooth, tick-free finish and markings that are resistant to cleaners and... -
30cm Color Coded Professional Metric Scale 05
Pacific Arc$9.30The Professional Premium Plastic Metric Triangular Scales, crafted in Japan, provide precise graduations on premium white color-coded plastic for accurate performance. With a high-quality plastic core, these scales ensure durability and strength,... -
30cm Color-Coded Metric Architect Scale
Alumicolor$13.80Color Coded Drafting Scales are solid aluminum with a different color coded groove on each side (red, green, blue), easily identifying your calibrations. Calibrations are imprinted with Alumicolor's anodizing process. The anodizing process makes all... -
30cm Color-Coded Professional Metric Scale 06
Pacific Arc$9.30The Professional Premium Plastic Metric Triangular Scales, crafted in Japan, provide precise graduations on premium white color-coded plastic for accurate performance. With a high-quality plastic core, these scales ensure durability and strength,...
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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