What this means ids that the floor is not nailed down or glued down and is technically free to move around - hence the term floating. One of the reasons for having the floor "float" is that it can expand and contract freely with temperature fluctuations. this puts less stress on the floor ad gives you a longer lasting product. When a floating laminate floor is installed, a gap of about 1/4" is left around the edges of the room for this expansion from the temperature changes. You don't actually see this gap because it is covered by the baseboards. A floating wood floor adds a great look to any home, is affordable and can be installed easily by the avid do-it-yourselfer.