The official Lowe's web page does not sell pole barn kits. There are kits available for features of a barn, such as barn door roller kits, as well as materials needed to construct a pole barn.
One of these materials listed by Lowe's is a pack of pole barn nails. Farm buildings, pole barn garages and pole barn homes are three of the many different types of pole barn kits. The kits include a majority of the materials needed to complete each project. Although Lowe's does not offer pole barn kits, there are a number of online resources where a consumer can purchase pole barn kits including pole-barn.info.