block pickups through walls

[Limpet]

Ok confusing title.

What I want to know is, is there a way to prevent people from picking up objects through a wall? In my situation I have a wall with some items on a shelf on the wall, and the user can grab the objects through the other side of the wall, obviously this is bad.
I'd rather not have to make the wall thicker but I will if I have to.

 

[Sgt. Redneck]

Try tieing the wall to the entity "func_wall".

 

[Limpet]

That doesnt work, neither does func_brush.

what is the minimum brush size that need to make to block people from grabbing objects through walls?
right now its at 8 units

 

[Flippage]

try a adding a brush with the playerclip texture at the same width as the wall

see if that stops the pickups

otherwise, just make the wall a little thicker until you can't pick anything up. That's the easiest way to figure it out