How to stop lines showing from behind of those thin parts?

I am using Solidworks for my cottage design.

And actually I had this question long time ago, just lived with it. But it is the time to solve it. LoL

If I have a thin part in a big scale, such as half inch plywood, the object behind it will show up when I zoom out.

Is there anyway to avoid this?

Thanks

SolidworksParts And Features