queen-sized vs queen-size

queen-sized and queen-size both are adjectives.

Word	Noun	Adjective	Verb	Adverb
queen-sized	No	Yes	No	No
queen-size	No	Yes	No	No

As adjectives, queen-sized and queen-size are synonyms defined as:

queen-sized and queen-size: (used especially of beds) not as large as king-size

queen-sized (adjective)	queen-size (adjective)
(used especially of beds) not as large as king-size	(used especially of beds) not as large as king-size