Rulers

A ruler, also known as a rule, is a flat, straightedge measuring instrument with equally marked spacing etched or moulded along its length. The spacing forms a measuring scale of either metric or imperial measurements, which are usually in increments of centimetres (cm) and millimetres (mm) and inches (sometimes denoted as ") respectively. Rulers are used to measure the length of an object or its edge precisely and as a guide for drawing or scoring straight lines. Some rulers have measurements on both sides. The edges of rulers are often bevelled to reduce measurement errors.

Who uses rulers?

The better question may be 'who doesn't?' Rulers are used everywhere, from schools and offices to within the home and in a wide range of occupations. They are prevalent is particular fields of study including geometry, printing, technical drawing, architecture, building and engineering.

What are the different types of ruler?

Rulers are made from durable materials like wood, plastic or metal. These materials are hard wearing and are usually shatter resistant and scratch proof as they are made to last a long time.

  • Transparent plastic rulers allow an unobstructed view of the surface underneath for precise measuring and drawing.
  • Stainless steel rulers or an aluminium ruler is very durable and are ideal for use in a workshop. These steel rules often have a satin chrome anti-glare finish for clear visibility of the scale.
  • Wooden rulers are ideal for use at home or in schools, as the wood has a smooth surface, is clear to read and won't split.
  • Flexible rulers or tape measures, are ideal for determining the dimensions of objects with curves and angles. They are able to bend and flex to measure an exact circumference, length, width or height.
  • Machinist's rulers are made from steel and are usually a 6 inch ruler. The imperial machinist scale ruler is divided into increments of 1/10 inch. The metric machinist ruler is divided into millimetres or half-millimetre increments, allowing small, precise measurements to be taken with accuracy.

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Description Price Length Imperial or Metric Material Width Finish Flexible Folding Height Safe
RS Stock No. 513-391
Mfr. Part No.011284
BrandStabila
TWD258.00
Each
units
2m Metric Wood 16mm - - Yes -
RS Stock No. 471-5778
Mfr. Part No.27062
BrandWiha Tools
TWD231.00
Each
units
1m Metric Plastic 13mm - - Yes -
RS Stock No. 224-5384
Mfr. Part No.DY481
BrandStarrett
TWD634.00
Each
units
150mm Imperial, Metric Steel 18.98mm Satin Chrome - - -
RS Stock No. 304-8904
Mfr. Part No.925 200MM
TWD1,309.00
Each
units
200mm Metric Stainless Steel - - Yes - -
RS Stock No. 300-6641
Mfr. Part No.DELA.1051.300
BrandFacom
TWD177.00
Each
units
300mm Metric Stainless Steel 13mm - Yes - -
RS Stock No. 111-5879
BrandRS PRO
TWD514.00
Each
units
150mm - Steel 19mm - - No -
RS Stock No. 188-3749
Mfr. Part No.DELA.1056.300
BrandFacom
TWD428.00
Each
units
300mm Metric Stainless Steel 30mm - - - -
RS Stock No. 224-5390
BrandStarrett
TWD1,057.00
Each
units
300mm Imperial, Metric Steel 25mm Satin Chrome - - -
RS Stock No. 304-9058
TWD1,776.00
Each
units
250mm Metric - - Chrome - - -
RS Stock No. 111-5880
BrandRS PRO
TWD941.00
Each
units
300mm Imperial, Metric Steel 25mm - - No -
RS Stock No. 304-9042
TWD1,454.00
Each
units
200mm Metric - - Chrome - - -
RS Stock No. 493-409
Mfr. Part No.33232
BrandWiha Tools
TWD547.00
Each
units
2m Metric Plastic 15mm - - Yes -
RS Stock No. 304-8926
Mfr. Part No.925 300MM
TWD2,428.00
Each
units
300mm Metric Stainless Steel - - Yes - -
RS Stock No. 111-5887
BrandRS PRO
TWD14,422.00
Each
units
1210mm Imperial, Metric Steel 32mm Satin Chrome - No -
RS Stock No. 224-5407
Mfr. Part No.DY465
BrandStarrett
TWD504.00
Each
units
150mm Metric Steel 19.1mm Satin Chrome - - -
RS Stock No. 471-5762
Mfr. Part No.27057
BrandWiha Tools
TWD272.00
Each
units
2m Metric Plastic 15mm - - Yes -
RS Stock No. 304-8825
Mfr. Part No.901 500MM
TWD246.00
Each
units
500mm Metric Stainless Steel - - Yes - -
RS Stock No. 188-3947
Mfr. Part No.DELA.1056.500
BrandFacom
TWD546.00
Each
units
500mm Metric Stainless Steel 30mm - - - -
RS Stock No. 910-3234
Mfr. Part No.803.300MSLS
BrandFacom
TWD552.00
Each
units
300mm Metric Stainless Steel 13mm Satin Yes - Yes
RS Stock No. 111-5885
BrandRS PRO
TWD2,108.00
Each
units
600mm Imperial, Metric Steel 29mm Satin Chrome - No -