How much do deck post sleeves cost versus wrapping posts in NB?

Post sleeves typically cost $30-80 per post versus $15-25 per post for wrapping, but sleeves offer superior protection and longevity in New Brunswick's harsh freeze-thaw climate.

Post sleeves are pre-manufactured covers (usually PVC, composite, or aluminum) that slide over your existing deck posts, while wrapping involves using flat boards to box around the post. In New Brunswick's challenging climate with 100+ freeze-thaw cycles annually, the choice between these options significantly impacts both appearance and durability.

Post sleeve costs range from $30-80 per post depending on material and size. Basic PVC sleeves for 4x4 posts start around $30-40, while premium composite or aluminum sleeves with decorative caps can reach $60-80 each. These prices are for the sleeve only — installation adds $20-40 per post if you're hiring a contractor. The main advantage is complete moisture protection, which is crucial in our Maritime humidity and prevents the rot that commonly occurs where posts meet the ground.

Post wrapping costs are lower at $15-25 per post in materials (using 5/4" deck boards or trim boards), plus $15-30 per post for professional installation. However, wrapped posts require more maintenance in New Brunswick's climate. The seams where boards meet can allow moisture penetration, and the wrapping needs to be caulked and painted or stained regularly. Without proper sealing, water gets behind the wrapping and accelerates rot of the structural post underneath.

For New Brunswick conditions, post sleeves are generally the better investment despite higher upfront costs. Our wet springs, humid summers, and harsh winters are particularly hard on wrapped posts. Sleeves provide complete moisture barriers and typically come with 15-25 year warranties. They're also easier to clean — just hose off the salt and road grime that accumulates during our long winters.

Installation timing matters in our climate. Both options should be installed during dry weather (June through September) when wood moisture content is lowest. If wrapping posts, ensure the structural post is properly sealed first and use marine-grade caulk at all seams.

When to hire a professional: While both are manageable DIY projects, consider hiring a deck builder if you're dealing with multiple posts, need electrical work for post lighting, or want to ensure proper moisture barriers. Post protection is critical for deck safety — a rotted post can lead to structural failure.

Need help finding a deck builder for post upgrades? New Brunswick Decks can match you with local contractors who understand our climate challenges and building requirements.