runner

[farookio]

Can any one tell me how to calculate runner length?

[Drew Price]

By deciding at what RPM range you would like to see constructive wave interference to take maximum benefit of the Helmholz resonance effect, and then using maths.

[Goost]

Guess
Use a tape measure
Use a ruler
Use a caliper
Use a micrometer

listed in order of precision

[Adambomb]

Originally posted by Goost:
Guess
Use a tape measure
Use a ruler
Use a caliper
Use a micrometer

listed in order of precision

Looks like the magical "11 Distance Tolerance Scale" has been summoned...

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-prn1/28629_755196687790_2042788_n.jpg

[Warpspeed]

Originally posted by farookio:
Can any one tell me how to calculate runner length?
Are you putting up some new curtains, or maybe planning to compete in a track and field event?

Please be more specific.