We found the base of a coffee table and an old door at a resale shop, cleaned them up, attached them, then laid a new piece of glass on top to create a beautiful new table.
mask and gloves
Explore secondhand shops and salvage yards to find exactly the right pieces. Carefully measure the door to make sure that it is wide enough to have a 2-inch overhang on the sides of the coffee table. Paint or refinish the base as desired.
Clean and sand the door to get rid of loose paint and dirt. (Please follow lead laws if you believe you may be working with lead-based paint.)
Determine the exact size of the door. You may want to have a slight overhand all the way around the table base. Use a circular saw to cut the door down.