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RE: Macomber Joists

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I've found a 414P "V Purlin" joist size from around 1961, as well as a 1960 414VP "V-Lok" joist, but I'm a little confused about the other numbers/ letter.  Are these 14' deep joists that are spanning 24'-4" and 23'-8" respectively?  I'm not quite sure what the J or K stands for - if it were the style of joist the size would be called out differently.
 
Brian S. Bossley, PE
Ventura Engineering
7610 Olentangy River Rd.
Columbus, OH 43235
(614) 847-1110 x121


From: Frank Marafioti [mailto:famarafioti(--nospam--at)snet.net]
Sent: Thursday, January 27, 2005 9:17 AM
To: SEAINT
Subject: Macomber Joists

I need the allowable load, shear and moment for the following Macomber joists.
The building was constructed around 1960.
 
414 P 24 4 J
 
414 P 23 8 K