The TimberTech Impression Rail Express Post Sleeve - 4" x 4" can slide over a nominal 4x4 wood post or TimberTech Secure Adjustable Mount Post (both sold separately) to cover the product that adds stability to the railing system and in order to have railing match the Impression Rail Express Railing System.

TimberTech Impression Rail Express is a safe and sturdy metal railing system that stands the test of time. Made of aluminum with a powder-coated finish and featuring advanced moisture resistance, this low-maintenance railing system won't rot or deteriorate, while also resisting fading, staining, and scratching. The pre-assembled rail panels with rattle-free balusters are durable and easy to install. With 3 top rail options, 4 infill options, and 3 color options, this rail system is truly customizable to fit any style or look.

• Aluminum
• Slides over structural 4x4 wood posts
• 39" option for 36" final rail height; 48" option for 42" final rail height