I am attempting to mount a pegboard(the type you climbed up in gym class http://www.roguefitness.com/rogue-pine-maple-peg-board) to a drywall covered wall. Originally I thought lag bolts into the studs of the wall would work but then found out the studs in the wall are aluminum. After that I considered using toggle bolts and tried to get one into the stud but that seemed to be impossible. I have no idea what to try next to get the board mounted to the wall safely. It weighs about 40lbs and will have around 200lb people climbing it. Any advice would be greatly appreciated!! Thanks!