Although this type of door is in the 'Vertical Doors' section, it's not restricted to vertical doors. It's in this section because this effect is most commonly used with vertical doors.
This is a very simple effect. Create any type of door you wish. Now add an S[Delay,10]
in the door sector. The delay value is the amount of time it takes for the door to close. A delay value of 32 is equal to 1 second. 128 is the most common delay value (4 seconds).