Here in Orlando,fl people homes doors are being kicked in in broad daylight and being held hostage or killed while they clean out your home. this bar is fantastic in holding your front door closed ,they cant kick your door open with this bar.. i have tile floors in front of my door inside.its works great on tile. i cant speak for other floors. but this and the alarmed wedge are excellent stopping power against home invaders and it gives me time to get my gun for my unwanted guest.