Rotten garage door jamb

[Luis GVC]

The bottom part of my garage door jamb is quite badly rotten - pic attached and so I am planning on perhaps cutting it off at the joint that you can see at top of pic with something like a multitool and just do a straight swap with some new weather treated wood and protect it with a good external paint (I need to repaint the door anyway). Is this as easy as it sounds? are there any pitfalls I should anticipate?. I'm not even sure how it is secured to the wall - presumably a couple of long screws. Thank you in advance for any advice.

Luis

 

[blup]

I'm not sure a multi tool would cut straight and deep enough, a sharp handsaw cutting at an angle above the rotten wood, should though.

Cut the new piece at the same angle and use an epoxy repair system like timbabuild. It will cover any gaps and can be sanded. You can paint or at least prime the new wood before fitting. I have used meranti for this type of repair but treated softwood should be ok.

Set the bottom of the new piece above the floor to avoid the damp getting in again.

Hammer fixings or even concrete screws should suffice, counterboring into the wood if desired.

Blup

 

[Luis GVC]

Thank you Blup. Very helpful

 

[blup]

If you are hanging a heavy door from a hinge, an expansion bolt might be more appropriate, and/or sit the jamb on a piece of slate or similar so the ground bears some of the weight.

Blup

 

[Bosswhite]

I have the same problem with our Garage Door and was contemplating the same procedure

 

[lostinthelight]

I think I would do at least halving joint on there with one of the fixings through the lap

 

[Jackrae]

6 1/2 bricks up there appears to be a joint line from a previous repair.
5 bricks up there is a pozi screw holding the repair to the brickwork
Remove screw and you might find the patch has been made by three thinner pieces of wood.