[TowerTalk] How much antenna can a 120' Pi-Rod tower support?

[RVZ]

Would anyone know, or have software to estimate, how many Square Feet of antenna a 120' Self-Supporting Pi-Rod tower with the following specifications can hold?  The face width at the base is 60" and the face width of the top is 24".  The diameters of the solid steel legs are: Bottom 40' = 1-5/8".  Middle 40' = 1-3/8".  Top 40' = 1-1/4".  The tower will be located in a rural area of Northern Wisconsin with no humans located within 250' of the tower unless it's being serviced.  The plan is to locate a single HF Yagi at the top of the tower. Thanks & 73! Dick- K9OM   
Direct e-mail address: RLVZ at aol.com