Fastening

[krillii]

Hello expert panel

What do you use to attach a steel door frame to a wall made of hollow blocks known as gråsuggor?

 

[Locke]

If it is a security or fire-rated door, you more or less have to cast it in place.

If it's a regular lightweight door, it's basically enough that it's in place and that it's not immediately obvious how you got it there (wedges, expansion plugs).

 

[Matti_75]

Screw and plug or lightweight concrete screw. If it is a fire door, you must use fireproof caulking.