I would say higher than the average leaping ability of your average tabby.If you have any.Tabbys will climb up coats and shred them.But seriously folks,my coat hooks are at 70in.off the floor.Thank you,I'll be here all week.

hi

eye level

I measured by placing a few pairs of boots on the floor, then holding our longest item we wanted to hang so that it just cleared the boots, I marked the wall and that is where I hung my hook board.

Ours happen to be bibbed snow pants and coveralls. And we needed a lower level for the kids, so repeated the process with the longest jacket, and hung that rail.

One tip, if you are doing double rows, off set the hooks so the items above aren't constantly in the way of the lower hooks. The kids wont hang the coats if they can't see the hooks. If they do try to find hooks under items the upper items may be knocked to the floor. I can almost gaurantee those will stay on the floor with the wet boots until an observant adult notices.

Hope that helped.

LS

High enough so the longest clothes do not trail on the floor.

Lady Sara has said it all - I have nothing much to add.

Make sure you use fasteners appropriate to the wall construction. You don't want all those coats in the mess on the floor (if you live in a snowy area, or mud gets tracked in)