Sleeve Attachment

[Alwayslearningelec]

I know some sleeves can be attached right to the deck but these look to be lower. How would they be secured/supported?

 

[acrwc10]

Too vague of a question, what type of wall, concrete, drywall, fire rated?

 

[infinity]

Look like a poured concrete wall but who knows. As acrwc10 stated more information required.