The most common type of installation method for vinyl plank flooring is a click lock system. Most installers will charge $3-4.50/square foot depending on the complication of the site layout.
The type of flooring you select will dictate the length of install. The fastest installed material is carpet, avg. 450-630 sf per day. Up next is vinyl plank, laminate, and other engineered click flooring at around 400-800 sf per day. With hardwood flooring you can expect 300-500 sf per day. with tile and marmoleum, install timelines go up significantly, even for the smaller areas they're frequently used in (less than 100 sf). Layout of the area to be installed has the greatest impact on time of installation. The less square a room is, the tighter and more obtrusions there are, the longer the install will take.