Albert Barnes Commentary Exodus 10:6

"and thy houses shall be filled, and the houses of all thy servants, and the houses of all the Egyptians; as neither thy fathers nor thy fathers` fathers have seen, since the day that they were upon the earth unto this day. And he turned, and went out from Pharaoh." — Exodus 10:6 (ASV)

Fill thy houses - The terraces, courts, and even the inner apartments are said to be filled in a moment by a locust storm. Compare Joel 2:9.