Linear Measurement

Browse our range of linear measurement equipment that includes calipers, distance meters, tape measures and lever dial indicators from manufacturers like Stanley and our own quality RS Pro brand.

What is meant by linear measurement?

Linear measurement refers to the measurement of a straight distance between two points, usually, this is a dimensional reference such as length, height or width of an object.

Units of linear measurement

Measurements are usually taken in a standard unit format that is either in metric or imperial units. The imperial system uses inches, feet, and yards. Whereas the metric system uses millimetres, centimetres and meters.

Measuring tools for linear measurement

There are a number of different instruments that are used for linear measuring. They can be classified into two methods of measuring, direct and indirect. Some instruments are can be further defined as graduated instruments as they have a linear scale on them used to take the measurement. Tools can be selected based on the application, the size of the distance or object being measured and the levels of precision required. Some popular types of products include :

  • Rules - for measuring lengths, available in a range of sizes and materials such as wood, plastic and steel.
  • Calipers - a handheld device for measuring distances between two points. The tips of the caliper are opened to the size of the distance, then removed and measured with a device such as a ruler. Common types include Vernier calipers, digital calipers and dial calipers.
  • Tape measures - for measuring lengths and distances, commonly used in DIY and carpentry. Available in different sizes, materials and with different measurement scales.
  • Micrometres - used for measuring small distances when high accuracy is required.
  • Dial indicators - round dial face present with visual scale and needle. Ideal use with machinery such as milling machines to check the accuracy of a work detecting small imperfections.
  • Distance meters - records measurements accurately using a laser, without any contact.
  • Feeler gauges - for measuring the width of gaps, commonly used in engineering. Usually, have a collection of small lengths of steel that are different thicknesses.

Guides & Articles

article1_image

Everything you need to know about Tape Measures

article1_image

In our comprehensive guide, we look at the different types of calipers, what they are used for and how they work with some handy tips on how to use them.

Related Products
Dial caliper for general workshop and machine shop ...
Description:
Dial caliper for general workshop and machine shop useThe dial rotates and can be locked for zero adjustment. A thumbwheel offers ease of operation, a knurled lockscrew locks jaws as requiredSupplied in a storage box.
Professional range of drill blank sets suitable for ...
Description:
Professional range of drill blank sets suitable for the sizing of holes and the manufacturing of special cutting tools. High Speed Steel.Supplied in a metal indexing box.Size Range, Stock Number 785-7881: 1 - 6 mm and Stock Number 785-7884: 6 ...
These three digital depth gauges give measurements in ...
Description:
These three digital depth gauges give measurements in imperial or metric with resolution to 0.0005in. or 0.01mm. It has functions for ± deviation from nominal, instant metric/imperial conversions and an output port for transmission to Mitutoyo SPC data processors. The ...
Laserliner professional drill guide for reliable determination of ...
Description:
Laserliner professional drill guide for reliable determination of entry and exit points of wall and ceiling drill holes. • System consisting of a transmitter and a receiver enables easy drill channel alignment• Clearly visible LED indicators enable precise localisation of ...