How to fix disintegrated frame below external door?

[potato80]

Hi folks

Attached pictures show the little ledge below our external back door has rotted/disintegrated away.

Any suggestions how one would repair this please? I assume clear out all the debris (both wood and plaster); fill in with plaster, then add another layer of treated wood?

Idiots guide (i.e. very basic tips!) would be great!

Cheers

 

[oldbutnotdead]

First problem to solve is how to stop water ponding against that sill- I suspect your back garden level has risen over the years (that paving looks fairly new)

Given the location you might be better off clearing all the rubbish out of the way then putting a course of bricks in instead of the timber (if you've got the height). Use engineering bricks (better resistance to water penetration), maybe use tile adhesive rather than mortar. Or if you're feeling flush, use slate bricks (they exist, I use one as a doorstop. Probably cost a fortune but would tie into your kitchen floor nicely)

 

[potato80]

First problem to solve is how to stop water ponding against that sill- I suspect your back garden level has risen over the years (that paving looks fairly new)

Given the location you might be better off clearing all the rubbish out of the way then putting a course of bricks in instead of the timber (if you've got the height). Use engineering bricks (better resistance to water penetration), maybe use tile adhesive rather than mortar. Or if you're feeling flush, use slate bricks (they exist, I use one as a doorstop. Probably cost a fortune but would tie into your kitchen floor nicely)

Really helpful, cheers. The paving was done in 2014. I'll clear out the rubbish and see what size gap is left.

The water doesn't significantly pool in front of the back door, but it certainly looks like water is affecting it nonetheless