Urgent - How to Fill gap under P/Board

[Spinny]

Just realised I have a significant gap at the bottom of the plasterboard either side of my pocket door.

I need to fill this urgently as the flooring people are coming - how can I do this ?

 

I can actually push an LVT strip right through the wall from one side and out of the other. This is a problem because:

1/ I can't have floor leveller running into the door pocket and potentially causing fouling with the bottom of the door inside an inaccessible pocket

2/ This means sound can go straight under the wall despite it having two layers of p/board on each side.

 

So I need something which will close the gap, have reasonable acoustic value, and can be easily fixed in place without a long drying time.

 

Can't use expanding foam as it will expand into and block the pocket.

 

Cut thin strips of something ? ply, timber, plasterboard ? And how to fix them in place ?  Would AC50 be any good to fix something in place ?

[Nickfromwales]

7 minutes ago, Spinny said:

Just realised I have a significant gap at the bottom of the plasterboard either side of my pocket door.

I need to fill this urgently as the flooring people are coming - how can I do this ?

 

I can actually push an LVT strip right through the wall from one side and out of the other. This is a problem because:

1/ I can't have floor leveller running into the door pocket and potentially causing fouling with the bottom of the door inside an inaccessible pocket

2/ This means sound can go straight under the wall despite it having two layers of p/board on each side.

 

So I need something which will close the gap, have reasonable acoustic value, and can be easily fixed in place without a long drying time.

 

Can't use expanding foam as it will expand into and block the pocket.

 

Cut thin strips of something ? ply, timber, plasterboard ? And how to fix them in place ?  Would AC50 be any good to fix something in place ?

They just lay the flooring slightly under, and then your skirting sits on top?