US GLASS & Glazing, LLC is a replacement Window & Glass Siding Door company, next to Ace Hardware on Atlantic Ave., in Daytona Beach Shores, FL. 32118. We have a sliding glass door called the "Lift & Slide", which has only a 1/2"-=3/4" threshold made for easy access to porches and patios over the sliding glass door threshold. We can install those in condos and street homes and commercial businesses. Can be seen at our store and on videos. This "Lift & Slide" gets a person outside easily.