Grain Systems Tanks PNEG-972 - Manual (Page 45)

9. Stiffener Instructions (Inside Stiffened Only)
PNEG-972 Construction Manual for 2.66" Corrugation 105' Diameter Tall Tanks (28 Rings and Taller) 45
Stiffener to Sidewall Connections 3 Post Tanks
NOTE: Use the dimensioned holes for stiffener to sidewall connections on 3 post tanks.
Figure 9L
NOTE: Some locations in the lower regions of the tank utilize close punched sheets where the stiffener
will attach more frequently.