By ‘unclassified’ we mean that they have not been tested and guaranteed to conform to a particular level of accuracy.Ĭlass 1 tapes are becoming more and more popular, especially amongst those who demand absolute precision in their work. Unclassified tapes will not feature any marking on their blade. Class 2 (denoted by ‘II’) the second most accurate with Class 3 (III) logically being the third. Class 1 (denoted by the Roman numeral ‘I’) is the most accurate.
There are four generally accepted levels of tape measure accuracy. This refers to the accuracy of that particular tape. Pull the blade out of the case and you may notice a Roman numeral within either a circle or a rectangle, generally printed in red or black. The UK, however, still uses a combination of the two – the mandatory metric system as enforced by the European Union and the more traditional Imperial system still in use by many trades. Whilst some countries such as the USA still focus primarily on Imperial or ‘English’ markings (feet, inches, yards etc.), most countries have moved onto the metric system.
DIAMOND ON MEASURING TAPE HOW TO
If you want to learn more about tape measures and, in particular, how to read them properly, why not check out some of our other articles? Other Articles This article should help you understand what they are and how they should affect which tape measure you choose to buy. In order to comply with these regulations it became a legal requirement for manufacturers (with a few exceptions) to include a number of markings along the length of their blades. The UK Government’s Measuring Instruments (Material Measures of Length) Regulations implemented the European Measuring Instruments Directive (MID) in 2006. Whilst many of you will think you know how to use a tape measure, do you actually know how to use all of it? Do you know what the odd selection of markings refer to that are usually found within the first 20cm of a tape’s length? Got a tip to share? Then get in touch! Tape Measure Markings – What Do They Mean? how Always wanted to know how to take that particularly awkward measurement or how to take care of your tool? Perhaps you're interested in how particular trades use their tools? Then read on.
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