Ranked from the data
The four to look at first
Ranked by the middle of the installed price range, cheapest first, among materials rated at least three for durability; cost per year is that price divided by the middle of the expected life.
1
$4.00–$6.50 per sq ft installed
Installed / sq ft$4–6.5
Cost per year$0.62
The cheapest floor that is not a mistake: polyester carpet is soft, stain-resistant and inexpensive, and in a bedroom it lasts. It crushes in a hallway, which is why it ranks here for the rooms nobody runs through.
2
$4.50–$7.50 per sq ft installed
Installed / sq ft$4.5–7.5
Cost per year$0.34
The cheapest waterproof floor there is, and a good one: seamless, warm, quiet and mopped clean. It cannot be laid by most homeowners, so the labor line stays, and it is replaced rather than repaired. For a kitchen or bathroom on a budget it is hard to beat.
3
$5.00–$7.50 per sq ft installed
Installed / sq ft$5–7.5
Cost per year$0.42
The cheapest vinyl plank, thin, flexible and glued down. Waterproof and rated for hard traffic, it needs a smooth subfloor and a tidy installer, and it is the budget version of the floor everyone actually wants.
4
$5.50–$8.00 per sq ft installed
Installed / sq ft$5.5–8
Cost per year$0.52
A step up from polyester in wear for a little more money, and inherently stain-resistant. The budget carpet for a hallway or a family room, where polyester would flatten.