Big doors is a custom plugin to create working animated Doors, Drawbridges, Protcullis, and Sliding Doors.

Tutorial on how to create each type of door.

BigDoor Commands
-/BDM will open the main GUI for creating doors and viewing / editing the
doors you have created.

When creating a door follow the in chat commands, it will guide you though the process of creating the door step by step along with what you need to type and click. To start the process do /bdm to open the GUI and click on the door you want to create.

Making a big drawbridge
Making a big drawbridge is very similar to making a big door. For drawbridges, however, you can select a flat area as well. After selecting the area of the drawbridge, select one of the 4 sides of the rectangle to define the rotation point/hinge. If you select a corner, you’ll have to select another point on the desired axis to avoid ambiguity.
The location of the power block is in the middle, under the rotation point. If it’s still unclear, you can use the “/DoorInfo <DoorName || DoorUID>” command or the GUI to see its exact coordinates. Of course, you can also just move the power block to a location of your choice using “/ChangePowerBlockLoc <DoorName || DoorUID>” or the GUI.

Making a portcullis:
Again, a very similar process as before. The only difference from making a big door is that you use a different command (or GUI option) to initiate the creation process and that you don’t have to select a rotation point (it only goes up and down, after all). The power block works the same as it does for drawbridges: By default, it’s 1 block under the portcullis, in the middle and it can be moved just like it can for any of the other door-types.
The portcullis door-type will look at how many blocks it can move up and how many blocks it can move down. If it can move further down than up or if the number of blocks is equal in both directions (it never goes further than its total height), it will move down for as many blocks as it can. Otherwise, it will go up.

Making a big door:
When you have built a door that you would like to open, you start the door creation process using “/NewDoor <DoorName>”, where you substitute <DoorName> for any (non-numerical) name you’d like to give it. Alternatively, you can open the BigDoor Menu using “/BigDoorMenu” (or “/BDM” for short) and use the “New Door” button in the GUI and choose a name using “/NameDoor <DoorName|| DoorUID>”, as the instructions will tell you.
Next, you will need to define the region of the door*. Just select two points on the door as far away from each other as possible, e.g. top-left and bottom right. You then need to define where the rotation point (or: hinge) is, so the plugin not only knows where the door is but also how to open it. This is done by selecting a column of blocks on the side you want the door to rotate around.