In older properties there is often deterioration of the ends of the floor joists, particularly if they are built into damp walls. When refurbishment is carried out, this means either replacing the joists entirely, or alternatively strengthening the ends of the joists.

Sometimes, if the damage is to isolated joists ends rather than all of them, it is less disruptive to the building finishes and cheaper to just repair the affected joists. This is done by splicing new timbers to the existing joists.

Our structural calculations for floor joist splices calculates the length of the new timbers required and provides details of the connections between the new and existing joists.

We need the following information to design timber floor joist splices:

the span and centres of the joists

Design information

All design work is carried out in accordance with BS5268 (The structural use of timber).

The calculations provided will be suitable for Building Regulation approval.