I'm trying to make a spawndoor that blocks visibility when it's closed, by linking it to an Areaportal. However, the shutter door prop is so thin that the Areaportal can be seen through it in game. There's also a gap at the top due to the cylinder in the doorframe. The Areaportal is 2hu wide. I checked out Badlands' .vmf and it looks like Valve didn't use linked areaportals for their prop doors. Is there any way of making this work or should I just replace them with thicker, brush-based doors?