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These affect only Southern Pine sections that are 2-4” thick and 2-4” wide (deep). All Fb, Ft, and Fc and E values have changed, and in most cases are significantly weaker.
The changes have been made for built-up beams, built-up columns, joists, and wall studs.
Note that the addendum also addresses Mixed Southern Pine 2-4” wide, however WoodWorks includes only timber sizes of Mixed SP, 6’ width and greater, so no design values have changed in the WoodWorks database.
The changed E value applies to only those section depths, or widths in AWC terminology, listed in the Addendum. Therefore, unlike all other materials, the E value can be different for different section depths. The E value shown in database editor is the E for the depths shown in the Addendum; however internally Sizer applies the previous E value to all other depths.
The following materials selections have been added for roof and floor joists in Sizer. These will appear in version 9.2 even if you choose to retain you material customisations from previous versions, however, if you do so, it will be necessary to activate the new materials using Database Editor.
Sizer now allows you to select built-up lumber joists to implement designs in which joists are doubled up. A database file has been added to the installation containing only joist members that are 2” nominal thick (1.5” actual) for built-up design. The number of plies for built-up joists is limited to 2 to avoid designing unrealistic members.
Refer to Bug
Sizer now allows you to select LVL materials as joists; it was previously limited to LVL beams. A built-up joist LVL database has been included, allowing you to double up the joists. Note that unlike the built-up lumber joist database, the thicker 3.5” sections are included, and if these are selected, the number of plies should be set to 1. The number of plies is limited to 2 to avoid designing unrealistic members.
If you activated, deactivated or added a database file in Database Editor the program deactivated all sill plate materials that are used for bearing design in Sizer. The next time Sizer is run, a message warning you that you do not have sill plate materials appears on start up, and sill plate does not appear as a choice of bearing materials. This has been corrected.
If you have experienced this problem already, then in order to restore your sill plate materials, it is necessary during installation of this service release to indicate that you do not wish to retain your database customisations from the previous installation, by deselecting the Material Database – Standard selection in the Installation Options box that appears during the installation.
If you do not wish to lose your database customisations, contact WoodWorks Technical support for instructions on how to reactivate the sill plate materials without losing other database changes.
The program crashed when attempting to open a project file for which the supporting member species or grade had been deactivated in Database Editor. This has been corrected.
A button has been added to the Database Editor tool bar that allows you to copy an existing database to be used as a template for creating a new database file. If a standard (uneditable) database file was used as the basis for copying, the program turns it into a custom (editable) database file.