DIY Doctor UK DIY Forums

I am building a wall approx 3m x 2.4m between two yellow stock brick walls to reinstate an old kitchen, which will then be rendered, I intend to use breeze blocks in make a double thickness wall, but there seems so many types, can you advise on what type etc :? to use please.
The wall thickness will be 200/220 mm.

What is the wall carrying, is it internal or external and does it require a cavity.