1.American Wood Council Span Tables
Span Tables for Joists and Rafters, 1993 Edition (Update Available) provides a simplified system for determining allowable joist and rafter spans for
4.Simplified Span Tables
HEADING FOR EACH TABLE. RAFTER SPANS ARE MEASURED ALONG THE HORIZONTAL PROJECTION (SEE FIGURE 1). No. 2. No. 2. No. 3. No. 1. No. 1. No. 3. Sel. Str. No. 3