Many homeowners scrimp on investing in sturdy garage doors mainly because garage doors today can be quite expensive to purchase and challenging to install; however, purchasing a garage door is different from purchasing a one-time item at a store: the right garage door can be a very good home improvement investment that can make your home more appealing and more comfortable to live in. If you are putting together your garage for the first time, the major purchases you will have to make will include your garage door opener system, garage door, garage door parts, and garage door lock.