Cold air returns are oft overlooked, yet a key element in the styling of any home that has a forced air heating or cooling system. This website has enough designs that virtually any cold air returns can be located to be complementary to any architectural style. One curious fact about cold air returns is that they are often not in a standard size. If you have the misfortune of having an oddball dimensioned opening you should try to locate a cold air return as close as possible to your opening size so as not to adversely affect furnace performance. Many of the cold air returns at ColdAirReturns.com are able to be custom made in just about any size. Another consideration is whether your duct openings are located on wall, but right next to the floor. If so, it becomes a little more problematic to locate high style cold air returns that will fit there without adversely affecting airflow. But solutions do exist. Cold air returns in floor locations are often very difficult to configure because the larger they become the more structural issues become critically important. Cold air returns that are large and in a floor location are usually best done in a metal such as steel or bronze. Often these cold air returns will need structural elements to add rigidity in the case steel. Cast bronze pieces don't require extra structural elements but may not be available in certain sizes.