Look into the "commercial" lines at your carpet suppliers...these are typically more robust. Not quite as beautiful but durable.
Do they have it at Home Depot or Lowes
Yes Your big box stores do sell this, but your better off going to a carpet only store for your purchase. As they may have a better selection and perhaps left over remnants that may fit your application better. , your close pile carpets wear the best. Choose pattern types as they tend to hide more stains then a solid color will.