Editing Ruler (section)

==Variants==
Rulers have long been made from different materials and in multiple sizes. Historically, they were mainly [[wood]] but [[plastics]] have also been used. They can be created with length markings instead of being [[wikt:scribe|scribed]]. Metal is also used for more durable rulers for use in the workshop; sometimes a metal edge is embedded into a wooden desk ruler to preserve the edge when used for straight-line cutting. {{cvt|12|in|cm|lk=on|disp=or}} in length, although some can go up to 100cm, it is useful for a ruler to be kept on a desk to help in drawing. Shorter rulers are convenient for keeping in a pocket.<ref>[https://books.google.com/books?id=x98DAAAAMBAJ&pg=PA887 "Steel Rule Has Pocket Clip For Use As A Depth Gauge"], ''Popular Science'', December 1935, p. 887 bottom right.</ref> Longer rulers, e.g., {{cvt|18|in|cm|order=flip}}, are necessary in some cases. Rigid wooden or plastic [[yardstick]]s, 1&nbsp;yard long, and [[meter stick]]s, 1&nbsp;[[meter]] long, are also used. Classically, long [[measuring rod]]s were used for larger projects, now superseded by the [[tape measure]], [[surveyor's wheel|the surveyor's wheel]] or laser [[Rangefinding telemeter|rangefinder]]s.