Cascadia Rod Rail is manufactured in the USA by AGS & is one of the simplest rail systems to install. Made from 316 grade stainless, you just need to select your posts, how many rods you need, & post skirts. You then have everything you need to build a rod rail with your choice of top rail. The Cascadia Posts are designed for attaching any board as a top rail, wood or composite, & the posts adjust for straight or stair sections.