1) Decks 2) Nautical terminology 3) Upper parts 
the part of the hull between the waterline and the deck. Also, Above-water hull
the part of the hull between the waterline and the deck. Also, Above-water hull
On an offshore oil platform, topsides (c.f. jacket structure, which constitutes the lower half of the platform structure, partly submerged in sea) refers to the upper half of the structure, above the sea level, outside the splash zone, on which equipment is installed. This includes the oil production plant, the accommodation block and the drilling...
The sides of a vessel between the waterline and the deck; sometimes referring to onto or above the deck.
The sides of the hull between the waterline and the deck.
The part of the hull above the water.
The sides of a vessel between the waterline and the deck; sometimes referring to onto or above the deck
The superstructure of a platform.
The sides of a vessel between the waterline and the deck; sometimes referring to onto or above the deck.
The sides of a vessel between the waterline and the deck; sometimesreferring to onto or above the deck.