R507.9.1.3

Section R507.9.1.3 is titled 'Ledger to Band Joist Details' and covers the connection of a deck ledger to a dwelling band joist. This section references two tables and two figures to provide prescriptive connection designs. There are at least 13 measurements that must be checked, along with other details to determine compliance with this section; one of these measurements is only provided in a figure (which is uncommon - usually the code provides measurement requirements in the text or a table, and the figures are used to provide a pictorial explanation of the text or table).

The model shows a similar configuration of the two figures referenced by this section. All dimensions are minimum unless otherwise noted. The band joist and ledger are 2x10s which can only be offset vertically a maximum of 3/4" in order to be able to meet all the required measurements of this section, highlighting that precise planning is needed when attaching a deck to a dwelling.