Where can you buy runways?

Answer 1

Purchasing runways is very expensive. People that need them for fashion shows typically rent them, which is much more affordable and cost effective. There are companies that specialize in constructing custom runways and/or renting standard runways. You can do an online search for stage production companies.

Answer 2

Runways are typically built or assembled specifically for fashion shows and other related events. Not many places just have runways already in place. When such events do occur, they runways are usually found in venues like hotels, convention centers, as well as outdoors in large locations where there is plenty of space to set up like parks, in the middle of shopping centers, etc.