A terrace is an external, raised, open, flat area in either a landscape near a building, or as a roof terrace on a flat roof.
A terrace
A terrace of the Joenniemi Manor in Mänttä-Vilppula, Finland
A terrace at the shores of Lake Purgatsi in Anija Parish, Estonia
Franciscan friars look at the sea and city landscape from a terrace in Rio de Janeiro, Brazil, c. 1816
In architecture, a deck is a flat surface capable of supporting weight, similar to a floor, but typically constructed outdoors, often elevated from the ground, and usually connected to a building. The
A deck in the backyard of a suburban house
A high level corridor deck in the backyard of a suburban house in Australia
A high level deck in the backyard of a suburban house in Australia. The decking is selangan batu, a Malaysian timber.