DEA 1/2004 Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings (2005 reprint with amendments) (includes 2007 amendment) (No longer current but cited in Building Regulations)
NHBC is the UK's leading warranty & insurance provider for new homes. Southern Forest Products Association's (SFPA) current suggested lumber spans are found at http://www.southernpine.com/span-tables/ SFPA, Southern Forest Products Association 6660 Riverside Drive, Suite 212 Metairie, LA 70003...
DEA 1/2004 Span tables for solid timber members in floors, ceilings and roofs (excluding trussed rafter roofs) for dwellings