The Standard Routed System for Oxford railing consists of steel post supports inside 4 x 4 vinyl posts. The top and bottom rails slip inside routed holes in the posts. The aluminum channels inside the top and bottom rails attach to the post supports making a sturdy metal-to-metal system that meets the National building code approved NER-605. See "Installing on Wood Surface" and "Installing on Concrete Surface" for more details on this system.

The Rail Mount Bracket System for Oxford railing is an alternative mounting system. This system utilizes 4 x 4 treated wood posts instead of steel post supports. Blank posts are used instead of routed posts. The vinyl posts slip over the wood posts. The rails are attached to the posts with screws using "Rail Mount Brackets". The rail mount brackets provide a sturdy metal-to-wood system that also meets the National building code approved NER-605. Brackets are available for flat and stair applications. Brackets are also made to mount to round columns and 45 degree applications.

The Rail Mount Bracket System for the Kingston railing is the standard system. Post supports can be used if desired, but the Kingston railing is designed for installing over 4x4 posts using the bracket system. See the pictures below for a comparison between the two mounting systems and samples of the rail mount brackets.