Design Value Comparison
Provides design values for multiple species/species groupings from multiple regions/countries in tabular format. Allows the user to compare values associated with different species/regions and to quickly identify the applicable values for lumber packages containing a mix of species/region groupings. Includes most commercial species, species groups and regions produced in North America or Europe and sold for structural use in North American markets.
Span Options Calculator
User selects one or more species/species group(s) and production region(s) and enters span requirements to generate the lumber sizes needed in various grades in order to safely achieve the span objective. Includes grades for most commercial species, species groups and regions produced in North America or Europe and sold for structural use in North American markets.
Max Span Calculator
User selects a grade along with one or more species/species group(s) and production region(s) and enters lumber size along with span conditions to generate maximum spans as well as bending length (Fb), shear strength (Fv) and bearing strength (Fcp) values for each grade/species/region option selected.
PLIB believes the information generated by these calculators is accurate and conforms with design standards referenced by U.S. building codes.
Neither PLIB nor its members assume any responsibility for any particular design prepared from these on-line calculators. Those using these on-line calculators assume all liability and hold PLIB harmless from their use.
Please report any apparent inaccuracies to firstname.lastname@example.org