1) All ready for final assembly 2) Already made, like some homes 3) Assembled in advance 4) Assembly-line house 5) Assembly-ready 6) Built before shipped 7) Built in advance 8) Construction method 9) Easily assembled 10) Easily built 11) Easy house to put up 12) Easy to erect 13) Factory-built home Found on https://www.crosswordclues.com/clue/prefab