The front door, or the main door, is very important in Feng Shui, no matter we are speaking of the front door of a home or the front door of a business. In Feng Shui, the house gets its Chi, or energy nourishment through the front door, so the stronger, healthier and more balanced the front door is, the stronger and better the quality of energy available for those who live in the house.

Excerpt from:
What is A Strong Feng Shui Front Door?

The front door, or the main door, is very important in Feng Shui, no matter we are speaking of the front door of a home or the front door of a business. In Feng Shui, the house gets its Chi, or energy nourishment through the front door, so the stronger, healthier and more balanced the front door is, the stronger and better the quality of energy available for those who live in the house.

Excerpt from:
What is A Strong Feng Shui Front Door?