So, if I wanted to add sash jammers or restricters, say, how far does the metal section run into the corner (usually) to ensure the fixings locate into it?
I read somewhere that during profile welding, the metal does not run all the way into the corner, which is fair enough, but how far?
TIA
I read somewhere that during profile welding, the metal does not run all the way into the corner, which is fair enough, but how far?
TIA