On Sunday, August 20, 2017 at 11:00:27 PM UTC-4, Ed Pawlowski wrote:
On 8/20/2017 7:31 PM, DerbyDad03 wrote:
On Friday, August 18, 2017 at 6:44:09 PM UTC-4, Terrance D McCarty wrote:
I am building a stand for one of my rain barrels, (full capacity 50 gallons,
or ~ 420 lbs).
I am using 3/4 inch plywood, and plan on supporting it every 60 degrees of
circumference with 2 x 4's with 2 or 4 in the middle of the circle.
Think this will hold 420 lbs.of water, plus 25 lbs of barrel weight? (Total=
~455 lbs)
Thank you.


You need to use the Sagulator.

It will calculate the sag of more species of wood than I knew existed based on
total load, load distribution, support method and a few more factors.

http://www.woodbin.com/calcs/sagulator/



It crossed my mind too but I don't see anything sagging. The barrel is
self supporting around the circumference and the supports will be
directly below it.

Yeah, but where's the fun in *not* using the Sagulator? ;-)