broadloom

nouns

a carpet woven on a wide loom to obviate the need for seams
is a type of (narrower)
floor covering consisting of a piece of thick heavy fabric (usually with nap or pile)

adjectives

(of rugs or carpets) woven full width
"a broadloom rug"
is similar to
not having or joined by a seam or seams
"seamless stockings"