...and to save $ you can re-purpose cardboard from boxes etc to make
your own Sonotube equivalent. I like a couple layers of cardboard held
together with duct tape as a circumferential reinforcing band every few
inches of tube length (like belts.) When not overwhelmed by misplaced
"GREEN" feelings I coat the cardboard with used motor oil so it lasts
till the concrete sets up. If that incites your green feelings then use
cooking oil for coating the cardboard.
Patrick NJ5G
On 10/13/2017 1:14 PM, Steve Maki wrote:
Yep, Sonotube or the equivalent is the only way to go for short piers
(5'-15') or pad & piers. And you don't need to remove it - it
eventually just goes away.
They are amazingly strong and come in every diameter imaginable. Good
for elevated guy anchor posts. And subwoofer cabinets too!
-Steve K8LX
On 10/13/2017 13:50 PM, RCM wrote:
Sorry, I fat fingered a reply, on the iPad.
Here’s how the big boys do piers…. Don’t need no wood.
https://www.sonotube.com/sonotubeconcreteforms.aspx
<https://www.sonotube.com/sonotubeconcreteforms.aspx>
Got to watch a 350 foot Rohn SS go up…
24x 24 foot hole, 40 yards of concrete. Pad and pier.
Each leg of the first section was 1100 pounds.
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