Measuring Rods | McMaster-Carr

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752 Products

Tank-Level Rulers

Built to resist corrosion and last in harsh environments, these vertical rulers are iron with a porcelain-enamel finish. Mount them to walls and tanks.

Long-Length Tank-Level Rulers

Connect continuous segments to create a ruler up to 10 ft. long.

Tank-Level Folding Rulers

Fold these vertical rulers for convenient storage and transport.

Adhesive-Back Tank-Level Rulers

Permanently mount these vertical rulers to walls and tanks.

55-Gallon Drum-Level Rulers

Measure volume in gallons or liters without calculations.

Rulers

Folding Rulers

Fold these rulers for convenient storage and transport.

Adhesive-Back Rulers

Permanently mount these rulers to a machine or workbench.

Easy-to-Read High-Contrast Rulers

Numbers and graduations etched in light colors are easy to see on a black background.

Certified Lightweight Aluminum Rulers

Ensure accurate measurements with these certified rulers.

Lightweight Aluminum Rulers

Made of aluminum, these rulers are an economical alternative to stainless steel rulers.

Easy-to-Read Rulers with Bold Markings

Rulers have large numbers and deeply etched graduations.

Certified Corrosion-Resistant Stainless Steel Rulers

A calibration certificate traceable to NIST is included with these stainless steel rulers.

Wood Rulers

A clear protective coating and brass endcaps add durability to these hard-maple rulers.

Wood Yardsticks

Made of wood with a clear protective coating, this ruler is an economical choice for measuring objects up to three feet long.

Corrosion-Resistant Stainless Steel Rulers

Made to last, our most corrosion-resistant rulers are stainless steel and have wear-resistant etched markings.

Transparent Rulers

Keep your workpiece in view as you measure with these see-through rulers.

Nonslip Rulers

A cork back prevents slipping and protects delicate surfaces.

Half-Measure Adhesive-Back Rulers

Use to find diameters and centers.

Starrett Certified High-Accuracy Rulers

Ensure reliable, repeatable measurements with these rulers.

Starrett High-Accuracy Rulers

Also known as machinists’ rules, these rulers ensure reliable, repeatable measurements.

Starrett High-Accuracy Rulers with Hook

A reversible, removable hook grabs the edge of an object for easy alignment.

Magnetic High-Accuracy Rulers

High-powered magnets hold these rulers in place.

Scratch-Resistant High-Accuracy Rulers

Protect your ruler from scratches and wear with a TiN (titanium nitride) coating.

Certified High-Accuracy Rulers

These rulers include a certificate of calibration traceable to NIST with test measurements that confirm accuracy.

High-Accuracy Rulers

An economical alternative to Starrett High-Accuracy Rulers, these provide reliable, repeatable measurements.

Pocket Rulers

Rulers are narrow, flexible and just 6" long to measure in tight, slightly curved spaces.

Cut-Protection Rulers

A safety guard or finger groove prevents your fingers from getting in the way as you cut with these rulers.

Long-Length Rulers

Create a ruler up to 192" long by adding continuous segments.

Long-Length Vertical Rulers

Use to measure heights and tank levels.

Vertical Rulers with Hook

A hook grabs the edge of an object for easy alignment.

Vertical Rulers

Measurements are printed from top to bottom for measuring heights and depths.

Adhesive-Back Vertical Rulers for Floors

These extra-thick rulers have a polycarbonate coating that resists wear from traffic and chemicals.

Adhesive-Back Vertical Rulers

Permanently mount these rulers on machines, tanks, and walls to measure heights and depths.

Half-Measure Adhesive-Back Vertical Rulers

The graduations on these rulers are half the actual length of the object you are measuring.

Circumference Rulers

Determine the circumference of a circle without calculations.

Printers' Pica Rulers

Rulers are marked with picas for working with type.

Center-Finding Rulers

Zero marks the center when these rulers are positioned so the same number touches each side of an object.

Flexible Magnetic-Back Tape Measures

Flexible Magnetic-Back Tape Measure Sets

Attach to curved or flat steel surfaces.

Flexible Magnetic-Back Tape Measures

Attach to curved or flat steel surfaces.

Calibration Rods

Calibration Rods with Calibration Certificate

The included certificate of calibration traceable to NIST states that these rods have passed a test for accuracy.

Calibration Rods

Also known as calibration standards, these rods let you check and set micrometers and other measuring tools.

Telescoping Leveling Rods

Use these telescoping rods in conjunction with sight levels. They extend to the length you need, then collapse for convenient storage.

Nonconductive Telescoping Leveling Rods

These fiberglass rods are nonconductive.

Straightedges and Drafting Rules

Architects’ and Engineers’ Scales

Take measurements off of scaled architectural or engineering drawings with these specialized scales.

Pocket Architects’ and Engineers’ Scales

Small enough to fit into your pocket, the blade is narrow and only 6" long. These scales are often used for taking measurements off scaled architectural or engineering drawings.