How much weight can a 2x12 can take?

[Dexter211275]

I have my 34 pound R30 on top of it but just picked up a 55 pound JCM. Can it take 90 pounds on top of it in my room or is it best to keep one on the floor? I sat on it for a minute at rehearsal and let's just say I'm WAY more than 90 ponds

[bclaire]

I stand on my cabs from time to time if I need to reach something up high - I would expect the 2X12 to handle that....

[Les Paul Lover]

I've got my RV50 (24kg or 53 pounds) and my R30 on top of my PPC212.

All fine.
The only issue is deciding which to play.....

[Jondog]

Orange cabs can survive hurricanes when everything else is shattered.

[Mystic38]

the Orange cabs, particularly the closed back, are the most solid cabs made.. i would happily put 500lb on top of my 212CB without blinking..

...mind you, the floors on this 200 year old rotbucket of a house is another matter