In what applications should I choose white bottom over galvanized?
Our White Bottom decking is painted with a brilliant reflective paint similar to the coating on a light fixture. This is recommended when you want the bottom or underside of your structure to have maximum brightness for a work space.
Galvanized decking is generally less cost per square foot but gives the same rated capacity. This can be used for general construction when the decking is covered by a ceiling or the end user is not concerned about brightness.
Galvanized is also recommended for form deck applications as the concrete being formed has moisture and wants to cause premature rust on the decking.