Hi there - I would like to be a little more clear with the actual width of the opening. I know it needs to be wider than the door (single bifold in my case) but I'm not sure how much. Is a half inch total enough for the door to open without hitting?
Thanks a lot

This is what I found.. hope it helps.
http://shop.menards.com/shop/store/20090519001/items/media/Millwork/DCMW/Install_Instruct/bifold_INST.pdf