The details on this site are recommended for all i joists.
Timber floor joist detail.
All the figures are based on normal domestic floor loadings where the floor construction is typically 18 25mm floor boards sheets with up to 12 5mm thick plasterboard and skim underneath.
Some newer homes have manufactured i beam shaped joists.
I joist construction details performance rated i joists in floor and roof framing.
For 2 1 2 and 3 1 2 flange widths toe nails may be used.
No more custom made floor trusses.
Attach rim joist to floor joist with one nail at top and bottom.
Trimjoist is the marriage of an open web floor truss and a trimmable wooden i joist bringing the best features of each to the relationship.
Nail must provide 1 inch minimum penetration into floor joist.
If you don t have autocad you will need to sign up for a free account and use autodesk viewer a web based applications.
Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s.
Here you can view and download individual floor and roof details for your use.
Alternatively you can download a free viewer by visiting this link and downloading the dwg trueview application.
As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit.
Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home.