"Dave" wrote in message
...
Dave wrote:
Here's another one for the assembled experts ...
I've got one joist that's been cut short and then attached to a
trimmer in order to get round a soil stack - but I want to remove the
trimmer as part of some building work. I plan to screw & glue the
extension timber to the side of the existing joist, are there any
rules on how much overlap, etc?
The joists are about 195x48, it's the joist nearest the wall, it'll
be about 40mm too short when the trimmer is removed.

... that should be 400mm!

overlap should be minimum 26", use 2 suitably long coach bolts with
washers (I use the square type) and put star washers (not sure of the
technical term but the builders merchant knew what I was on about)
between the 2 joists, one bolt 4" in from either end

this order...
bolt, washer, joist, star washer, joist, washer, nut

LJ