657231 – Wolverine 3/4" Inside Corner Post – White

The Wolverine 3/4" Inside Corner Post (Model 657231) is a premium vinyl siding accessory engineered to deliver a clean, seamless transition where two siding panels meet at interior corners. As part of the CertainTeed Vinyl Carpentry® system, this corner post is built for full compatibility with a broad range of siding profiles, ensuring consistent fit, finish, and long-term performance.

Crafted from durable, weather‑resistant vinyl, this inside corner post is designed to withstand harsh temperatures, moisture exposure, and UV radiation without fading, cracking, or warping. The White finish provides a crisp, timeless look that enhances the visual appeal of any exterior while maintaining color uniformity over time.

The post features pre‑punched nail slots that simplify installation and ensure secure, accurate placement—ideal for professionals and DIY installers alike. Whether used in new construction or exterior renovations, the Wolverine 3/4" Inside Corner Post adds structural clarity and a polished appearance to every siding project.