Choosing the right lumber for a new deck is one of the most important decisions homeowners make during the planning process. The material influences the deck’s appearance, durability, maintenance requirements, and long-term value. Wood decking remains a popular choice throughout the South Metro Twin Cities because it offers a natural look, reliable structural performance, and proven durability when the appropriate species is selected for Minnesota’s climate.
Not all wood species perform the same under Minnesota’s freeze-thaw cycles. They vary in durability, rot resistance, dimensional stability, maintenance needs, and cost. Understanding these differences before starting a project helps homeowners select a material that matches their budget, performance expectations, and maintenance preferences, while avoiding unnecessary expense or premature deterioration.
Cedar
Western red cedar is one of the most popular wood decking species in the upper Midwest for good reason. Its natural oils provide resistance to rot, decay, and insect damage without requiring chemical treatment. Cedar is also dimensionally stable, meaning it expands and contracts less than many other softwoods when exposed to changing moisture levels and temperatures. This stability makes it well suited for climates like Minnesota, where decks must withstand significant temperature fluctuations throughout the year.
Cedar is also lighter than most hardwoods, making it easier to handle during construction while reducing the load on the deck’s framing system. It readily accepts stain and sealant, and with regular maintenance, a cedar deck can provide 15 to 25 years of reliable service. However, cedar is softer than many hardwood species, making it more susceptible to dents and surface wear in high-traffic areas. Homeowners should consider how the deck will be used, including frequent foot traffic or heavy outdoor furniture, when deciding whether cedar is the right choice.
Ipe
Ipe is one of the hardest and most durable wood decking options available. This South American hardwood has a Janka hardness rating of more than 3,600, making it significantly harder than cedar and many other decking materials. Its natural density and oils provide strong resistance to rot, insects, mould, and moisture without requiring chemical treatment. When properly installed and maintained, Ipe decking can last for several decades, making its higher upfront cost a long-term investment in durability and performance.
The primary challenge with Ipe is its workability. Its exceptional density requires pre-drilling for fasteners and can quickly dull cutting tools, making proper installation techniques essential. Hiring a contractor with experience working with Ipe decking helps ensure accurate cuts, proper fastening, and efficient material use. Poor installation practices can lead to avoidable issues such as split boards, damaged fasteners, or premature repairs. Annual oiling helps maintain its original rich brown colour, but allowing the wood to weather naturally does not affect its structural durability.
Redwood
Redwood delivers a striking grain pattern and a warm, reddish tone that no stain on a lesser species can replicate. Like cedar, redwood contains natural tannins that resist decay and insects. It machines cleanly, accepts finishes well, and feels comfortable underfoot because it does not retain heat the way some composite and hardwood options do.
Availability is one of the primary considerations for Minnesota homeowners choosing redwood decking. Most redwood is sourced from California, and transportation and supply factors can make it more expensive than cedar in this market. Homeowners who value redwood’s distinctive appearance and natural colour may find the added cost worthwhile. Those seeking a more budget-conscious option often choose cedar, which offers similar benefits with greater availability and a lower upfront cost.
Tigerwood and Cumaru
Homeowners looking for exotic hardwood decking beyond Ipe have strong options in tigerwood and cumaru. Tigerwood features dramatic color variation with orange and brown streaks that darken and deepen over time. Cumaru, sometimes called Brazilian teak, offers hardness comparable to Ipe at a slightly lower price point. Both species handle Minnesota weather well and deliver the longevity that justifies their cost.
These exotic hardwoods share the same installation demands as Ipe. Pre-drilling is mandatory, specialized fasteners improve the finished appearance, and the contractor needs to understand how dense tropical species behave differently than domestic softwoods during construction. Cutting corners on installation undermines the performance advantage that makes exotic wood decking worth choosing in the first place.
How to Decide
The right wood decking species depends on each homeowner’s priorities, including budget, maintenance expectations, appearance, and desired lifespan. Cedar is a practical choice for many Minnesota homeowners, offering reliable performance, a classic natural appearance, and strong value. Ipe and cumaru are well suited for homeowners seeking exceptional durability and hardness and who are prepared to invest in premium materials and specialised installation. Redwood offers a distinctive look with natural warmth, while tigerwood provides a balance of exotic durability and unique grain character.
Every wood species requires a framing system designed to accommodate its weight, movement characteristics, and fastening requirements. Footing specifications, joist spacing, and ventilation beneath the deck boards can vary depending on whether the project uses a lighter softwood like cedar or a dense hardwood like Ipe. A contractor with experience installing multiple decking species understands how to design the appropriate substructure for each material, helping prevent installation issues that can result from using a one-size-fits-all approach.
CHS Custom Decks & Design has built more than 400 custom decks across the South Metro Twin Cities using cedar, Ipe, tigerwood, cumaru, and redwood. With over 30 years of experience, veteran ownership, and a 2-year craftsmanship warranty, CHS helps homeowners choose the right wood decking species for their budget, their backyard, and Minnesota’s climate. Call (651) 368-2661 to schedule a consultation today.