first class(noun) the highest rank in a classification. first class, 1st class, first-class mail, 1st-class mail(noun) mail that includes letters and postcards and packages sealed against inspection. first class(adj) the most expensive accommodations on a ship or train or plane.
A very basic sliding glass door, without professional installation, can cost $300 to $500, and this is the type of door most people think of when they hear the term sliding glass door â a six-foot pair of plain glass panels inside a simple frame. An eight-foot door can run $800 to $1,200 without professional installation.
Cost of sliding patio doors. Vinyl or aluminum gliding patio doors will be the least expensive options available. For a basic sliding patio door, including installation and hardware costs, you will probably invest anywhere from $1,200 to $2,500 from a big-box store. This option is best for a small starter home with a lower price point, or it can also be a quick fix for homeowners who need to sell their home right away and arenât looking to invest a lot of money into upgrades.