Fitting new door cill on concrete

[kavehh]

Hi everyone,

I removed the timber and the wood around my front door as they were badly rotten.
I'm aiming to fit a sapele hardwood (photo attached)

I'm not confident how I can fix it so it doesn't get loose over time since people will step on it. The previous timber were snug fit into concrete. I guess it was placed there before the frame was made around it.

1) shall I smooth the surface with concrete first? and use no more glue to fix the timber to it? or it'll get lose over time.
2) what would be best solution to fill the sorrounding? cement, filler? I still want to run a piece of wood since I cut the rotten bit.

I'm also happy to put tiles or bricks if you think the wood is not ideal and won't stay put.

Thank you for your support

 

[ree]

OP,
Dry-Fit the new sill in the threshold - then remove it.
The sill drip groove must be projected above the tiles.

Dig out the slot where the old sill was positioned. Dig down, say, 150mm and then lay a piece of bag shaped plastic to act as a damp membrane. Knock up a rough mix of concrete & drop it into the "bag".
Test, setting the new sill on top of the mix. When satisfied - screw galv or SS screws into the bottom of the sill.
Set the sill into the wet "concrete" and tap it down.

 

[kavehh]

OP,
Dry-Fit the new sill in the threshold - then remove it.
The sill drip groove must be projected above the tiles.

Dig out the slot where the old sill was positioned. Dig down, say, 150mm and then lay a piece of bag shaped plastic to act as a damp membrane. Knock up a rough mix of concrete & drop it into the "bag".
Test, setting the new sill on top of the mix. When satisfied - screw galv or SS screws into the bottom of the sill.
Set the sill into the wet "concrete" and tap it down.

Thanks.

are you suggesting I dig 150mm? that means removing the bricks. is 150mm minimum height for the concrete to stay intact and not crack?

Why can't I just remove the excess concrete, then flat it out with cement and lay the sill on top of it and screw it down using anchor bolts or concrete screw?

Thanks