Pretty easy to get into the 2x4 after drilling holes. They seem extremely sturdy after holding 250 pounds on just one bracket. You definitely need the right tools at home, don't try this with a screwdriver I can see these being used outdoors for something huge but we only use them for kids and adult hanging chairs. I had to install a cross-beam in the attic rafters to get this to work but it was worth it and much easier than trying to install while on a ladder and facing the ceiling. I installed on a 2x4 while it was on the ground, then mounted in the attic.
Rating:
[5 of 5 Stars!]