Gate
A gate is an architectural object in The Sims 2 and The Sims 3.
Gates were introduced in The Sims 2 base game, so as to give Sims a way to pass through fences without requiring the player to leave a gap in the fence. Gates function the same as doors, except that they must be placed in fences.
The Sims 2: Open for Business introduced the ability to lock gates.[1] Gate locking was introduced into The Sims 3 with The Sims 3: World Adventures.
In The Sims 2: Pets and The Sims 3: Pets, individual gates can be set so that pets either can or cannot use them.