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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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 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,... -
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 - 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... -
Clear Graduated Acrylic T-Squares with Detachable Head
Pacific Arc$12.60 - $22.10Constructed from heavy clear acrylic and featuring a graduated (inch/metric) blade, the unique detachable head design allows easy transport. The blade can be used separately as a straight edge and ruler.Features:Available in multiple lengthsDetachable... -
College Combination Set
Staedtler$7.40Some of Staedtlers's most popular tools all in one set! These tinted plastic tools all have inking edges. 4-Piece Set Includes: 12" ruler 6" 45°/90° triangle 8" 30°/60° triangle 6" 180° protractor -
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... -
Flexible Stainless Steel Rulers
Art Alternatives$5.70 - $15.00This classic ruler is a staple for any studio, classroom, garage or DIY household. With its flexible metal construction and cork backing, it is both durable and safe to use without scratching various surfaces or slipping under pressure.Features:Features... -
Graphic Arts Type & Gauge Ruler
Westcott$13.95The Westcott Graphic Arts Ruler is designed for graphic arts, layout, and measuring applications. Constructed from durable opaque plastic, this ruler is printed on both sides and laminated for long-lasting use. The ruler features multiple professional... -
Grid Ruler with Metal Cutting Edge
Westcott$11.25 - $18.50The Westcott Transparent Grid Ruler features heavy-duty transparent plastic construction for easy viewing of drawings, layouts, and artwork. Calibrations and grid markings are visible on both light and dark surfaces, making measuring and alignment easier... -
Ludwig Scholastic Aluminum T-Squares
Alumicolor$8.20 - $22.50The Alumicolor economy Scholastic T-Squares are made from extruded aluminum and are perfect for students or those looking for a good-quality, light-weight t-square at a economical price.Features: Available in multiple lengths: 12", 18", 24", 30",... -
Machine Square
Excel$13.90 - $31.50These squares are perfect for 90° layout and machine set-up. These squares are made from hardened, tempered and polished carbon steel.A machinist square, also known as an engineer's square, is a measuring tool used in the field of metalworking and... -
Mini Protractor
Timely Templates$1.20This pocket-size protractor has 1° graduation clearly printed on .020 matte surface green vinyl. This material is tough and flexible. -
Non-Skid Flexible Stainless Steel Ruler
Alvin Drafting$2.30 - $13.70The Alvin Drafting flexible rulers are made of finest quality stainless steel with non-skid cork backing that won’t slip on glass or polished surfaces. Features: Graduated in 16ths, 32nds, and metricStainless steelEtched graduationsNon-skid cork... -
Plastic Math Set
Staedtler$2.60Stay prepared for math class with this essential 4-piece set, which includes a 6-inch ruler, a 4-inch protractor, a 45-degree triangle, and a 30/60-degree triangle. The transparent design of the pieces allows items to show through for enhanced precision... -
Plastic Vernier Caliper
Pacific Arc$4.40The Pacific Arc plastic Vernier Caliper is made to assist in any home project or DIYs. This caliper can measure the external or internal diameter of an object, and also provides the depth of an object. This tool saves time and money for everyday...
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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