How to Choose the Right Lumber for Your Project
Decks, Fences, Sheds, and Garages
Choosing the right lumber is one of the most important steps in any building project. Whether you’re planning a new deck, fence, shed, or garage, the materials you select will impact durability, appearance, maintenance, and long-term cost.
With so many options available, it’s easy to feel overwhelmed. This guide breaks down the basics so you can confidently choose lumber that fits your project—and your budget.
Start With the Project (and the Environment)
Before picking lumber, ask two key questions:
Will the wood be exposed to weather or moisture?
Is it structural or primarily decorative?
Outdoor projects and structural components require stronger, more durable materials than indoor or non-load-bearing builds.
Lumber Options by Project Type
🪵 Decks
Decks take a beating from sun, rain, snow, and foot traffic, so durability matters.
Best options:
Pressure-Treated Lumber
A popular, budget-friendly choice that resists rot and insects. Ideal for framing and decking boards.Cedar
Naturally resistant to decay and insects, with a beautiful appearance. Lower maintenance than treated lumber but higher upfront cost.Composite Decking
Not real wood, but worth mentioning. Very low maintenance and long-lasting, though typically more expensive.
Pro Tip: Even if you choose cedar or composite for decking boards, pressure-treated lumber is often still the best choice for deck framing.
🪚 Fences
Fence lumber needs to withstand constant exposure while still looking good.
Best options:
Pressure-Treated Lumber
Strong, cost-effective, and long-lasting when properly installed.Cedar
Excellent for privacy fences thanks to its natural resistance and attractive finish.
Things to consider:
Post material is critical—pressure-treated posts rated for ground contact are essential.
Thicker boards last longer and resist warping.
🏠 Sheds
Sheds are all about strength and weather resistance.
Best options:
Pressure-Treated Lumber
Ideal for floor framing and any part that touches the ground.SPF (Spruce-Pine-Fir)
Commonly used for wall framing and roof trusses when protected by siding and roofing.Engineered Panels (OSB or Plywood)
Great for sheathing walls and roofs.
Pro Tip: Use treated lumber where moisture is possible and standard framing lumber where the structure is protected.
🚗 Garages
Garages are structural projects, so lumber quality and grading matter.
Best options:
SPF Framing Lumber
Widely used for studs, rafters, and trusses.Engineered Lumber (LVLs, I-Joists)
Ideal for long spans and heavy loads.Pressure-Treated Lumber
Required for sill plates and any wood in contact with concrete.
Important: Always follow local building codes and span requirements when choosing garage materials.
Understanding Lumber Grades & Treatments
Not all lumber is created equal. Here’s what to look for:
Grade: Higher grades mean fewer knots and straighter boards—important for visible areas.
Treatment Rating: Outdoor lumber should be rated for its use (above ground vs. ground contact).
Moisture Content: Kiln-dried lumber is more stable and less likely to warp indoors.
If you’re unsure, your local lumber yard can help you select the right grade for your application.
Budget vs. Longevity
Cheapest isn’t always best—but most expensive isn’t always necessary.
Pressure-treated lumber offers excellent value for outdoor projects.
Cedar costs more upfront but can save on maintenance.
Engineered lumber can reduce labor and increase strength.
Choosing the right material the first time helps avoid repairs and replacements down the road.
Why a Local Lumber Yard Makes the Difference
Big-box stores carry lumber—but Genesee Lumber offers expert advice, better material selection, and project-specific guidance. Whether you’re a homeowner or a contractor, having someone help you choose the right product can save time, money, and frustration.
Need Help Choosing Lumber?
Stop by or contact Genesee Lumber. Our team is happy to help you select the right materials for decks, fences, sheds, garages—and everything in between.
