Complete your siding project with precision and polish using the CertainTeed 657220 Wolverine Inside Corner Post. Designed to provide a clean, professional transition at inside wall corners, this 3/4-inch channel post is part of CertainTeed’s trusted Wolverine siding system. With its durable vinyl construction, it offers both structural support and aesthetic appeal for residential and light commercial applications.

Key Features & Benefits

• Essential Siding Component
  The inside corner post is a critical element in vinyl siding installation, providing a secure and visually seamless junction where two walls meet at an interior angle. It ensures siding panels are properly aligned and protected from moisture intrusion.

• 3/4" Channel for Secure Fit
  The 3/4-inch receiving channel accommodates most standard siding profiles, offering a snug, reliable fit that enhances the overall integrity of your siding system.

• Durable Vinyl Construction
  Made from high-performance, weather-resistant vinyl, this corner post resists cracking, warping, and fading. It’s engineered to perform in all climates, from intense sun to freezing temperatures.

• Low Maintenance
  Like all CertainTeed vinyl products, this inside corner post is virtually maintenance-free—no painting, staining, or sealing required. A simple rinse with a garden hose keeps it looking fresh year after year.

• Seamless Integration with CertainTeed Siding
  Compatible with a wide range of CertainTeed siding lines including Wolverine American Legend, Monogram, MainStreet, Restoration Classic, Board & Batten, and Encore, ensuring a cohesive and professional finish.

• Professional-Grade Appearance
  The matte finish and clean lines of this corner post contribute to a refined, architectural look that enhances curb appeal and adds value to your home.

Specifications

• Product Name: Wolverine Inside Corner Post
• Item Number: 657220
• Channel Size: 3/4 inch
• Length: Typically 10 feet (check with supplier for availability)
• Material: Premium-grade vinyl
• Finish: Matte
• Compatibility: Designed for use with CertainTeed vinyl siding systems
• Applications: Residential and light commercial siding installations
• Maintenance: No painting or sealing required
• Certifications: Class 1(A) fire rating, CSA Certified
• Warranty: Limited Lifetime Warranty