Level lift platform

Hi, I’ve built a training platform from plywood and horse stall mats with a Rogue R3. It sits in the garage and I noticed the other day that it sits on a small angle with the garage floor. I took a level to the barbell and it dropped maybe an eighth of an inch over a couple of feet. The angle is parrallel to how the bar is used on the platform so one end of the bar will sit higher than the other. How much of a concern should this be to level the platform?

That’s a pretty small amount, and I think it’s unlikely to cause much of a problem.