Is the ancient wooden door bigger on the left or on the right?

The left hand side is very big. According to the traditional custom in China, the entrance is large on the left and small on the right. This stems from the ancient theory of "left green dragon, right white tiger", that is, the dragon is left, the tiger is right, the left is big and the right is small. However, in modern architecture, the front size of the door is usually determined by the architect, which may be large on the right and small on the left, depending on the spatial layout and design concept of the building.