The following tables are solely for guidance on the loadbearing capacity of solid softwood timber members to give adequate support to floors, ceilings, and roofs in domestic dwellings.

Use kiln-dried softwood in the appropriate strength class, grade stamped to comply with Eurocode 5. Naturally durable or pressure treated timber should be specified where necessary to meet the requirements of the application service class and desired service life.

The calculations cannot be adapted for hardwoods or engineered timber products.

C16 Span Tables also available here