Originally Posted by amakarevic
another question is: why is the product you posted links for angled ? shouldn't it be simply flat ? i am sure there is a reason but can you give your US$0.02 ?
- a -
If it was flat, it would be more likely to bend with added weight. Because it is shaped as an angle iron, it gives the steel member added strength.
Trust me, we've installed them in basements ourselves, when cutting concrete to install doors and windows.
Generally, you will need 2 of them. One for the outside wall surface, and one for the inside wall surface.