Can I use postmix concrete for gap under wooden step?

[DIYNotIan]

Hi all

I am having some new external french doors fitted next week. We are keeping the original frame. I am trying to get some of the prep and decorating done before the new doors are fitted.

Whilst sanding and cleaning the frame I noticed that there is a gap beneath the step, between bottom of step and wall. See pics. The gaps means the step has a little movement.

I need to get this done ASAP. I have some postmix in the shed and wondered whether I would be able to use that?

One other thing.... Part of what looks like the damp course sheet is loose in the gap I propose to fill. If I do use the postmix, should I put it in under or over the damp course sheet?

Many thanks

Max

Untitled

• DIYNotIan
• 13 Sep 2013
• 1

Untitled

• DIYNotIan
• 13 Sep 2013
• 1

Untitled

• DIYNotIan
• 13 Sep 2013
• 1

 

[Newboy]

Postcrete is likely to be too coarse - use a standard mortar mix