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eLibrary > Span Tables for Joists and Rafters >

Span Tables for Joists and Rafters, 2012

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Span Tables for Joists and Rafters, 2012

Cover
Title Page
TABLE OF CONTENTS
EXPLANATION OF TABLES [Go to Page]
1. SCOPE
2. LUMBER DESIGN VALUES
3. LUMBER SIZES
4. MOISTURE CONTENT
5. SPAN MEASUREMENT
6. ROOF LOADS
7. LUMBER IDENTIFICATION
8. GENERAL REQUIREMENTS
9. REQUIRED COMPRESSION PERPENDICULAR TO GRAIN [Go to Page]
Table 9.1 Required compression perpendicular to grain design values (Fcperp) in pounds per square inch for simple span joists and rafters with uniform load.
Table 9.2 Adjustment factors for alternate loading and spacing conditions for determining required compression perpendicular to grain design values (Fcperp) for joists and rafters.
SPAN TABLES [Go to Page]
TABLE F-1 FLOOR JOISTS WITH L/360 DEFLECTION LIMITS - LL = 30psf, DL = 10psf
TABLE F-2 FLOOR JOISTS WITH L/360 DEFLECTION LIMITS - LL = 40psf, DL = 10psf
TABLE F-3 FLOOR JOISTS WITH L/360 DEFLECTION LIMITS - LL = 50psf, DL = 10psf
TABLE F-4 FLOOR JOISTS WITH L/360 DEFLECTION LIMITS - LL = 60psf, DL = 10psf
TABLE F-5 FLOOR JOISTS WITH L/360 DEFLECTION LIMITS - LL = 40psf, DL = 20psf
TABLE F-6 FLOOR JOISTS WITH L/360 DEFLECTION LIMITS - LL = 50psf, DL = 20psf
TABLE F-7 FLOOR JOISTS WITH L/360 DEFLECTION LIMITS - LL = 60psf, DL = 20psf
TABLE C-1 CEILING JOISTS WITH L/240 DEFLECTION LIMITS - LL = 10psf, DL = 5psf
TABLE C-2 CEILING JOISTS WITH L/240 DEFLECTION LIMITS - LL = 20psf, DL = 10psf
TABLE R-1 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 20psf, DL = 10psf
TABLE R-2 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 30psf, DL = 10psf
TABLE R-3 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 40psf, DL = 10psf
TABLE R-4 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 50psf, DL = 10psf
TABLE R-5 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 20psf, DL = 15psf
TABLE R-6 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 30psf, DL = 15psf
TABLE R-7 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 40psf, DL = 15psf
TABLE R-8 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 50psf, DL = 15psf
TABLE R-9 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 20psf, DL = 20psf
TABLE R-10 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 30psf, DL = 20psf
TABLE R-11 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 40psf, DL = 20psf
TABLE R-12 RAFTERS WITH L/240 DEFLECTION LIMITS - LL = 50psf, DL = 20psf
TABLE R-13 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 20psf, DL = 10psf
TABLE R-14 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 30psf, DL = 10psf
TABLE R-15 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 40psf, DL = 10psf
TABLE R-16 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 50psf, DL = 10psf
TABLE R-17 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 20psf, DL = 15psf
TABLE R-18 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 30psf, DL = 15psf
TABLE R-19 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 40psf, DL = 15psf
TABLE R-20 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 50psf, DL = 15psf
TABLE R-21 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 20psf, DL = 20psf
TABLE R-22 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 30psf, DL = 20psf
TABLE R-23 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 40psf, DL = 20psf
TABLE R-24 RAFTERS WITH L/180 DEFLECTION LIMITATION - LL = 50psf, DL = 20psf
APPENDIX A - COMMENTARY [Go to Page]
A.1 Floor Joists
A.2 Ceiling Joists
A.3 Rafters
A.4 Compression Perpendicular to Grain Design Requirements
A.5 Lumber Design Values
A.6 Load Requirements
A.7 Support Requirements
A.8 Repetitive Member Use
A.9 Load Duration
A.10 Use of the Span Tables
Table A-1. FLOOR JOISTS WITH L/360 DEFLECTION LIMITATIONS
Table A-2. CEILING JOISTS WITH L/240 DEFLECTION LIMITATIONS
Table A-3. RAFTERS WITH L/240 DEFLECTION LIMITATIONS (Drywall ceiling attached to underside of rafter)
Table A-4. RAFTERS WITH L/180 DEFLECTION LIMITATIONS (No drywall ceiling attached to underside of rafter)
Figure A.10-1 Two-span floor joists overlap at interior span to double load carrying capacity of the floor system for the corridor.
Conversion Diagram for Rafters
Back Cover [Go to Page]

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Span Tables for Joists and Rafters, 2012

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