DIYbanter - View Single Post - Repairing timber shed uprights

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On 24/07/2018 16:08, newshound wrote:
On 24/07/2018 15:15, wrote:
I have a large shed with 6" x 3" timber uprights resting on a stub
block wall. The bottom 2-3 feet of the posts is rotten so I want to
splice-in some new timber. I can't think how to cut a decent lap joint
in the bottom end of the remaining upright so I'm tempted to butt join
the timber and add steel plates (fish plates?) on each side - at a
guess these would be around 150 wide 450 long and a few mm thick.

Suggestions welcomed for how to cut a lap joint on the bottom of a bit
of timber that's waggling in the breeze, or for a source of suitable
steel plates.

A bit fiddly, but can't you make the basic cuts for a lap joint with a
circular saw? And square off with a panel saw. Then put coach bolts
through it.

Tough to do with the timber hanging down from the roof structure, which
it will be once I saw off the rotten bit. I suppose I could cut a sort
of half lap joint (zillions of half-depth cuts with a circ saw, then
cleaned-up with a chisel) while the rotten bit is still attached and
providing a little bit of anchorage, then saw off the end. Hmm, perhaps
I could first attach some sacrificial timber over the rot and fix it to
the wall to a provide temporary anchorage.