How are residential and commercial carpets differ from each other?
As well as being made of a lesser fiber blend the carpet is often treated with fire retardant and pesticides before installation, dyes are also different, matching a commercial carpet color to a residential retailer will mean a compromise.
A residential carpet is a good quality carpet, usually made of wool. A commercial carpet is usually some kind of acrylic and is of a lesser quality, but it is hard-wearing and tougher. It is used in rental apartments and places like offices where toughness is more important than looks or feel.
