Attic Floor Joist Sistering Options
Hi All, new member and have a question about a project I'm currently working on.
In my garage attic there is plenty of space and I am converting half of it into a walk-in closet off of the master bedroom. The joists are 2"x12" on 12" centers, with a span of 23.5'. I have been working with a structural engineer, great guy, and he said I have to sister the 8 joists that would be under the attic closet conversion as the load would be too large for the current span.
The issue I am running into is going to be getting 23.5' SPF boards into the attic and enough space to put into place where the existing joists currently sit. I have read some options online with connecting two boards to act as the sister joist, potentially using tie plates with bolts or additional blocks of wood where the connection occurs.
Are there any options that exist that would allow me NOT to use a full 23.5' board and instead use multiple (I would assume two would be best, not more) to meet the span to allow me to sister the joists and take some of the load?
Any and all options are very much appreciated!!!!
Thanks,
Adam