Our old deck was not installed properly, leading to water damage in the wall behind it. Our contractor had to tear off a couple courses of siding to repair the wall, and lowered the level of the deck to prevent future damage. But how to cover the repair? New siding wouldn't match. After some searching we hit on Genstone. (We also found some competing products but they didn't look nearly as nice.) One row of 42"x12" panels plus ledger pieces provided a finished look that we are very please with.