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 Calibrated Flexible Folding Height Safe
RS stock no. 304-8847
Mfr. Part No.901 2000MM
R 580.08
Each
units
2m Metric Stainless Steel - - - Yes - -
RS stock no. 304-8819
Mfr. Part No.901 300MM
R 64.99
Each
units
300mm Metric Stainless Steel 13mm - - Yes - -
RS stock no. 471-5778
Mfr. Part No.27062
BrandWiha Tools
R 116.69
Each
units
1m Metric Plastic 13mm - - - Yes -
RS stock no. 877-1794
BrandRS PRO
R 2,867.85
Each
units
750mm Metric Steel 40mm - - - No -
RS stock no. 513-391
Mfr. Part No.011284
BrandStabila
R 143.19
Each
units
2m Metric Wood 16mm - - - Yes -
RS stock no. 224-5384
Mfr. Part No.DY481
BrandStarrett
R 325.68
Each
units
150mm Imperial, Metric Steel 18.98mm Satin Chrome - - - -
RS stock no. 251-7213
Mfr. Part No.T3531 100
BrandCK
R 473.37
Each
units
1m Metric Aluminium - - - - - -
RS stock no. 202-9615
Mfr. Part No.RSR073RS
BrandSybren
R 214.29
Each
units
1m Imperial, Metric Wood 38mm - - - Yes -
RS stock no. 910-3230
Mfr. Part No.803.200MSLS
BrandFacom
R 360.77
Each
units
200mm Metric Stainless Steel 13mm Satin - Yes - Yes
RS stock no. 120-1282
Mfr. Part No.T3530 12
BrandCK
R 241.84
Each
units
300mm Imperial, Metric Stainless Steel 29.5mm - - Yes - -
RS stock no. 493-409
Mfr. Part No.33232
BrandWiha Tools
R 268.36
Each
units
2m Metric Plastic 15mm - - - Yes -
RS stock no. 111-5880
BrandRS PRO
R 462.84
Each
units
300mm Imperial, Metric Steel 25mm - - - No -
RS stock no. 248-9231
BrandRS PRO
R 1,022.60
Each
units
300mm Imperial, Metric Steel 25mm - - - No -
RS stock no. 224-5390
BrandStarrett
R 538.23
Each
units
300mm Imperial, Metric Steel 25mm Satin Chrome - - - -
RS stock no. 910-3234
Mfr. Part No.803.300MSLS
BrandFacom
R 418.77
Each
units
300mm Metric Stainless Steel 13mm Satin - Yes - Yes
RS stock no. 877-1785
BrandRS PRO
R 1,796.48
Each
units
500mm Metric Steel 30mm - - - No -
RS stock no. 300-6629
Mfr. Part No.DELA.1051.200
BrandFacom
R 52.69
Each
units
200mm Metric Stainless Steel 13mm - - Yes - -
RS stock no. 300-6641
Mfr. Part No.DELA.1051.300
BrandFacom
R 105.37
Each
units
300mm Metric Stainless Steel 13mm - - Yes - -
RS stock no. 111-5879
BrandRS PRO
R 258.39
Each
units
150mm - Steel 19mm - - - No -
RS stock no. 467-9161
Mfr. Part No.9700000000
BrandZENDAD
R 209.51
Each
units
2m Metric Wood - - - - - -