Beefing Up Attic Joists for StorageThanks to Chris DeBlois for his article on beefing up attic joists (Q&A, 10/11). I am faced with a similar situation and have a couple of follow-up questions. In this case, the owners plan to use the attic space for storage. First, do I need to make changes to the support walls? Second, the existing joists are 2x6s, as in the original article, but the clear span is a more than a foot longer, at 12 feet 7 inches. Can I use the same number of gussets and blocks, or should I add an additional...

-OR-