Hardwood Decking for Renovation Projects in Boise, ID

Assessing Your Existing Deck Frame for Hardwood

Before selecting new decking material, a thorough inspection of your existing deck frame is crucial. Hardwood decking, known for its density and weight, requires a robust and stable sub-structure. Look for any signs of rot, insect damage, or structural instability in joists, beams, and ledger boards. Pay close attention to connections to the house and foundation posts.

Consider the spacing of your existing joists. Many hardwood decking profiles are designed for specific joist spacing to ensure proper support and prevent sagging. If your current joist spacing is wider than recommended for your chosen hardwood, additional blocking or sistering of joists may be necessary to meet structural requirements. A qualified builder or engineer can help determine if your existing frame is suitable or if modifications are required for the increased weight and demands of hardwood.

Ensure all fasteners and connectors are corrosion-resistant and in good condition. Replacing corroded hardware during the frame assessment can prevent future issues, especially with the long lifespan expected from hardwood decking.

Hardwood Species for Boise's Climate

Boise experiences a range of seasonal conditions, from hot, dry summers to cold, snowy winters. Selecting a hardwood species that can withstand these fluctuations is key to a long-lasting deck. Tropical hardwoods like Ipe and Cumaru are recognized for their natural resistance to rot, insects, and significant weather changes, making them strong candidates for outdoor applications.

Ipe, also known as Brazilian walnut, is a dense and durable hardwood. It is noted for its resistance to warping after moisture exposure and its natural oils that help protect it from cracking. Its color ranges from reddish-brown to olive-brown. Ipe decking can last for decades with proper care, making it a premium choice for durability. (S1)

Cumaru is another very durable tropical hardwood. It offers stiffness, strength, and extreme hardness. Cumaru is resistant to termites and weather changes, and its natural properties make it resistant to insects, rot, and fungi.

Both Ipe and Cumaru are widely used in demanding outdoor environments, including marine applications, which suggests their suitability for varied weather conditions.

Understanding Board Profiles and Lengths

Hardwood decking is available in various profiles and lengths, which can impact both the aesthetics and installation of your renovation project. Common profiles include standard decking boards with eased edges, suitable for visible fastening. Some species may also be available in profiles designed for hidden fastening systems, which offer a cleaner, uninterrupted surface appearance.

Consider the available lengths of the hardwood boards. Longer lengths can reduce the number of butt joints, creating a more seamless look, but may also be more challenging to transport and handle. Shorter lengths can be more economical and easier to work with for smaller or irregularly shaped deck areas. Planning your layout to minimize waste from cuts is always a good practice.

For Ipe, dimensions typically range from 1"x2" to 6"x6" with lengths available from 3 to 24 feet. (S1)

Fastening Methods for Hardwood Decking

The density of hardwood decking species like Ipe and Cumaru means specialized fastening techniques are often recommended. Face-fastening, using screws driven through the face of the board into the joists, is a common and secure method. Pre-drilling pilot holes is essential to prevent splitting the dense wood.

Hidden fastening systems are also available for many hardwood decking profiles. These systems typically involve clips or fasteners that attach to the sides of the boards, securing them to the joists without visible screws on the deck surface. While hidden fasteners can provide a cleaner look, they often require specific board profiles and meticulous installation.

Always refer to the manufacturer's specific installation guidelines for your chosen hardwood and fastening system to ensure proper and secure installation.

Maintenance Considerations for Hardwood Decks

One of the advantages of tropical hardwoods is their relatively low maintenance requirements compared to some other decking materials. For Ipe, occasional sealing and cleaning will help preserve its natural beauty and extend its life. If left untreated, Ipe will naturally weather to a silvery-gray patina, a process that does not affect its structural integrity. Applying a UV-blocking sealer can help maintain its original reddish-brown to olive-brown color. (S1)

A simple wash once a year is generally sufficient to keep a hardwood deck clean. An annual application of oil is optional and serves to retain the rich brown color; skipping this step allows the wood to silver to a driftwood grey, with no structural difference. (S2)

These maintenance routines are straightforward and contribute to the long-term enjoyment of your hardwood deck.

Worked Example: Renovating a 10' x 12' Deck

Let's consider a hypothetical deck renovation project for a 10-foot by 12-foot deck in Boise, ID, where the existing frame is deemed sound and capable of supporting hardwood. The homeowner prefers Ipe decking for its durability and rich appearance. They decide on 5/4" x 6" Ipe decking boards, which are typically available in lengths up to 24 feet.

**Step 1: Calculate Total Deck Area.** The deck area is 10 feet * 12 feet = 120 square feet.

**Step 2: Determine Linear Footage of Decking.** A 5/4" x 6" board is effectively 5.5 inches wide for coverage. To cover the 12-foot length, you would need 12 feet / (5.5 inches / 12 inches/foot) = approximately 26.18 boards across the 10-foot width. If using 12-foot boards, this means 26.18 * 12 linear feet = approximately 314.16 linear feet of decking. Always add at least 10-15% for cuts, waste, and future repairs. For this project, let's round up to 350 linear feet.

**Step 3: Consider Board Lengths and Waste.** To minimize waste and butt joints, the homeowner plans to use primarily 12-foot boards for the 12-foot dimension. For the 10-foot dimension, they could use 10-foot boards, or cut 20-foot boards in half, or use 12-foot boards and trim 2 feet off each, with the offcuts potentially used for shorter sections or stair treads if applicable. For simplicity, assuming 12-foot lengths are primarily used, you would need 350 linear feet / 12 feet/board = approximately 29.17 boards. Therefore, 30 full 12-foot boards would be a reasonable initial purchase estimate.

Always purchase extra fasteners.

This example provides a starting point; actual measurements, specific board dimensions, and a detailed cut plan will refine these estimates. Always confirm exact product dimensions and availability with your supplier.

Before you order

• Inspect existing deck frame for rot, insect damage, and structural integrity.
• Verify existing joist spacing is suitable for hardwood decking, or plan for modifications.
• Choose a hardwood species (e.g., Ipe, Cumaru) suitable for Boise's climate.
• Select desired board profile (e.g., standard eased edge, hidden fastener compatible).
• Determine preferred board lengths to minimize waste and butt joints.
• Plan fastening method: face screws with pre-drilling or hidden fasteners.
• Account for waste factor (10-15%) in material calculations.
• Confirm maintenance plan: annual wash, optional UV-blocking sealer/oil.
• Obtain a material quote with project dimensions, exact profile, and ZIP code.

Confirm installation details, approved uses and warranty terms in the current instructions for the exact product and profile. Your installer should verify the substrate, structure and applicable project requirements.

This is a planning guide for projects in Boise, ID. Ask our team to confirm availability, delivery to your ZIP code and which branch can support your order.

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