Black Plague storage room lasers

[patzi]

I can't for the life of me get over them. I piled the 3 boxes on top of each other but he couldn't jump that high...maybe I'm a lousy jumper, I dunno....so I added smaller boxes to make a little step, and that kind of helped but I still die each time I try to jump over them. Some of these things seem so easy to jump over, others are very difficult.