Material Comparison
| Factor | Pressure-Treated Wood | Composite (Trex/TimberTech) |
|---|---|---|
| Installed cost (per sq ft) | $15–$25 | $30–$60 |
| Lifespan | 10–15 years | 25–50 years |
| Annual maintenance | Stain/seal every 1–2 years | Occasional wash |
| Splinters | Yes, over time | No |
| Warping/cracking | Common in MI climate | Rare |
| Color options | Natural wood (stainable) | Dozens of colors/textures |
Michigan Weather Factor
West Michigan's freeze-thaw cycles, heavy snow, and spring moisture are hard on wood decks. Pressure-treated lumber absorbs water, freezes, and splits. Without annual sealing, a wood deck in Michigan looks worn within 3–5 years and needs replacement in 10–15.
Composite decking handles moisture without absorbing it, does not split or splinter, and maintains its appearance for decades with minimal care.
Long-Term Cost
For a 300 sq ft deck, wood costs roughly $5,000–$7,500 installed. Over 25 years, add $3,000–$5,000 in stain, sealant, and repairs — plus at least one full replacement. Total: $13,000–$20,000.
Composite for the same deck costs $9,000–$18,000 installed. Maintenance over 25 years: a few hundred dollars in cleaning supplies. Total: $9,500–$18,500.
Our Recommendation
For Michigan homeowners who want a low-maintenance deck that lasts, composite is the better value. If budget is the top priority and you are willing to maintain it annually, pressure-treated wood works — just go in with realistic expectations about its lifespan here.
Grand City Builders installs both. We will help you choose the right material for your budget and usage. (616) 886-7138.