If you can't decide on a size remember this: It's better to have one that's too big than to have one that's too small. Wooden coffee tables, as well as all coffee tables, are usually 16 inches tall. Some however can be as low as 10 or 11 inches tall. Are your wooden coffee tables going to be foot_rests for family members and visitors? If you think that there is a chance that people will put their feet on the coffee table then having wooden coffee tables is the way to go. Wooden coffee tables and upholstered coffee tables are the most resilient against damage. A simple polish can almost always remove dirt or marks left by shoes.
As a general guideline it is preferable to have a minimum of two feet around each side of the coffee table and it should be reachable, without standing, from each of the seating areas. Some people also suggest that your coffee table should be no larger than sixty percent of your sofas length. The height that you choose very much depends on what you intend to use it for. Modern coffee tables are often very low; however this may make using it for eating difficult. It is often a good idea to place an item of a similar size and shape to any table that you intend to buy in the room. This will give you a feel for how it will work with the space that you have.