Creating Ladders (CSGO)

Create a brush in front of the object/brush you want to be climbable, as close as you can to it, but without touching it.

Make sure that the face is the same width/height as the climbable object.

 Warning: Do not tie the brush to a func_ladder, just leave it as a world brush.

Assign the material tools/toolsinvisibleladder to this brush.

World Brush textured with 'tools/toolsinvisibleladder' in front of a prop_static ladder.

You now have a climbable face which is in front of the object/brush. No other setup is required for your ladder to work in game.

 Tip: tools/toolsinvisibleladder will make the entire brush act like a ladder, even if it is only on a single face of the brush. Other faces of the brush will still show their textures in game.