Lowe's and The Home Depot sell inexpensive wooden front doors online and in their stores across the United States. The Door Clearance Center in Houston, Texas, and Door Store America also sell wooden front doors at reasonable prices, but shipping costs increase the overall prices.
Wooden doors found at Lowe's start around $160 to $170, with composite wood doors selling for approximately $50 to $60, as of November 2015. Prices for The Home Depot's wooden doors start at $172 for an unfinished fir front door slab.
The Door Clearance Center features a knotty alder wood door slab for $59 and a special buy assortment of doors for just under $100. Door Store America's lowest prices start around $339.