Floor Joists Ceiling Joists Rafter [snow/drywall] Rafter [snow/no drywall] Rafter [no snow/drywall] Rafter [no snow/no drywall] Headers S-P-F D.Fir-L[N] Hem-Fir[N] Northern Species Select Structural No.1/ No.2 No.3 2 4 6 8 10 12 12 16 19.2 24 30 Live/10 Dead (sleeping rooms & attics) 40 Live/10 Dead (all rooms except sleeping rooms & attics) 50 Live/10 Dead 40 Live/20 Dead (all rooms 1.5 in or less concrete floor fill) 60 Live/20 Dead (balcony 1.5 in or less concrete floor fill) 60 Live/10 Dead (balcony) 70 Live/10 Dead 80 Live/10 Dead 90 Live/10 Dead 100 Live/10 Dead