How do you measure a tarantula?

[Hobo]

I always thought it was from the tip of L1 to the tip of R4. :?

If I'm not mistaken, the "L" in L1, L2, etc. Mean "leg" and not "left".
...or "right", if that's what you mean by "R4".

 

[captmarga]

Yes - L1 is Leg 1 on one side, to L4 (leg 4) on the other side. If the T was missing L1 on one side, then logically use the other side...

None of my Ts are big enough (as in record-holders) to be so specific. I usually say, "Right at 6.5", or "just over 3" and don't worry too much about it. IF I had a 10" DLS spider, then I might get down to fractions of an inch.

Marga

 

[Travis K]

^ That is how I do it. I like the accuracy a measuring mat provides.

 

[catfishrod69]

im still sayin that if you measure diagonally then measure on the same side, longest tip to tip, it measures exactly the same, ive tried it....