Best Decking Boards At Menards In 2026: A Deep Dive Into The 98ig Series And Beyond

Choosing the right material for a deck project in 2026 requires a balance between architectural aesthetics, structural longevity, and the volatile pricing of the global lumber market. For homeowners and contractors shopping at Menards, the search for "decking boards menards 98ig" typically points toward a specific category of premium, radius-edge pressure-treated lumber or high-performance composite SKUs that have become the regional standard for the Midwest and Great Lakes building seasons. This identifier, often associated with high-yield inventory batches, represents the intersection of the AC2 treatment process and the specific 5/4-inch thickness requirements that dominate modern residential builds.

In the current 2026 landscape, decking technology has shifted significantly toward "Ground Contact" certifications for almost all residential applications. While previous years allowed for "Above Ground" grade lumber for surface boards, the updated International Residential Code (IRC) and local municipal amendments now favor the higher chemical retention levels found in the 98ig series specifications. This shift ensures that even if a deck is built with 12 to 18 inches of clearance, the boards are chemically equipped to handle the micro-climates of moisture and limited airflow that lead to premature rot.

Understanding the 2026 Technical Specifications of the 98ig Series

The 98ig designation at Menards refers to a specific inventory class of premium pressure-treated southern yellow pine (SYP). Unlike standard construction-grade lumber, these boards undergo a more rigorous sorting process to minimize "wane"—the missing wood or bark on the edges of the board—and to ensure a consistent radius edge. In 2026, the 98ig series utilizes advanced Micronized Copper Azole (MCA) technology, which provides a more natural wood appearance and is significantly less corrosive to fasteners than the older ACQ treatments of the past decade.

Structural integrity in 2026 hinges on chemical retention levels. For the 98ig series, the retention levels are typically calibrated to 0.15 pcf (pounds per cubic foot) for Ground Contact applications. This is a critical metric for builders to verify, as it determines the board's resistance to fungal decay and termite infestation. Furthermore, the 2026 batches of these boards are kiln-dried after treatment (KDAT) in select premium tiers, which reduces the "shrink and warp" cycle that often plagues wet-treated lumber immediately after installation.

Building Code Compliance in 2026

Modern residential deck construction now requires strict adherence to the updated R507 section of the IRC. This means that every board in the 98ig series must carry a legible grade stamp indicating its treatment level and the third-party inspection agency. When installing these boards, it is mandatory to use stainless steel or high-quality polymer-coated fasteners to prevent the copper in the wood from causing galvanic corrosion, which can lead to structural fastener failure within five to seven years.

2026 Comparison Table: Menards Decking Options

To help you decide between the 98ig treated series and the latest 2026 composite alternatives, the following table breaks down the essential metrics based on current market availability and performance data.

Material Selection: Why 98ig Dominates the 2026 Value Market

While composites like UltraDeck (Menards' flagship brand) have gained significant market share in 2026 due to their low maintenance, the 98ig treated wood series remains the top seller for several reasons. First is the structural versatility. Unlike composite boards, which are strictly for surfacing and cannot be used for joists, stairs, or posts, the 98ig treated lumber provides a cohesive look for the entire frame and surface.

In 2026, we are seeing a resurgence in "Hybrid Decking," where builders use the 98ig series for the structural frame and the perimeter "picture frame" border, while utilizing high-end composites for the main field. This strategy optimizes the budget while maintaining high durability where it matters most. The 98ig boards are particularly favored for their "incising" patterns—small slits in the wood that allow the treatment to penetrate deeper into the heartwood—which is a standard feature for 2026 ground-contact lumber in the Great Lakes region.

2026 Installation Standards and Best Practices

Installing 5/4-inch 98ig decking boards in 2026 requires a more nuanced approach than the "nail and go" methods of twenty years ago. Due to the high moisture content of modern treated lumber at the point of sale, spacing is the most debated topic among pros.

1. Acclimation Period: It is recommended to allow 98ig boards to sit on-site, covered but ventilated, for at least 72 hours before installation. This allows the wood to reach an equilibrium moisture content (EMC) with the local environment.
2. Gap Management: If the boards feel heavy and "wet," they should be installed tightly together (butt-jointed). As they dry over the first 2026 summer season, they will naturally shrink to create the ideal 1/8-inch to 1/4-inch drainage gap. If the boards are KDAT (Kiln Dried After Treatment), they must be installed with a 3/16-inch spacer immediately.
3. Fastener Selection: For 2026, the industry has moved toward hidden fastening systems even for treated wood. Using systems that drive screws into the side of the board rather than the face reduces "checking" (splitting) and prevents water from pooling in screw holes.
4. End-Cut Treatment: This is the most skipped step in DIY projects. Every time a 98ig board is cut to length, the exposed end must be treated with a brush-on wood preservative (copper naphthenate). In 2026, failure to treat end-cuts can void the manufacturer’s warranty and lead to localized rot within 36 months.

Maintenance and Longevity Strategies for the 2026 Season

The longevity of a 98ig deck is entirely dependent on the first 12 months of its life. Because these boards are treated with copper-based fungicides, they initially have a green or bronze tint. Many homeowners in 2026 make the mistake of staining too early.

The "Water Test" remains the gold standard: sprinkle water on the board; if it beads up, the wood is too wet/oily to accept stain. If the water soaks in, the board is ready. In the 2026 climate, we recommend using penetrating oil-based stains that contain high-solid trans-oxide pigments. These pigments act as "sunscreen" for the wood, blocking the UV rays that break down the lignin fibers.

Expert Tip on Power Washing

Do not use high-pressure power washers on 98ig treated boards. The pressure-treated southern yellow pine used in 2026 is a "softwood," and excessive PSI will "fuzz" the grain, forcing you to sand the entire deck to restore a smooth finish. Instead, use a chemical oxygen bleach cleaner and a stiff-bristled brush to remove organic growth before applying any sealer.

Frequently Asked Questions

What does the "98ig" code specifically mean at Menards?

In the 2026 retail inventory system, 98ig is a shorthand identifier for a specific SKU of 5/4" x 6" Premium Ground Contact Pressure Treated Decking. It distinguishes this premium, low-wane lumber from standard utility-grade boards that may have more knots and structural imperfections.

Can I use 98ig decking boards for garden beds in 2026?

Yes, the MCA (Micronized Copper Azole) treatment used in 2026 is considered safe for incidental contact with edible plants. Unlike the old CCA treatments which contained arsenic, the 98ig series uses copper and organic fungicides that do not leach harmful levels of toxins into the soil, though lining the bed with plastic is still a common professional recommendation.

How long should I wait to stain my Menards 98ig deck in 2026?

Typically, you should wait 60 to 90 days depending on the 2026 weather patterns. In a very dry summer, 30 days might suffice. The goal is to reach a moisture content of less than 15% before applying a film-forming or penetrating stain.

Is the 98ig series better than cedar for a 2026 deck?

The 98ig series is more durable in terms of rot resistance and is significantly cheaper than cedar in 2026. However, cedar is naturally more stable and less prone to warping or twisting. If you want the "look" of cedar with the "strength" of 98ig, you can use a cedar-toned transparent stain on the treated boards.

What is the maximum joist spacing for 5/4-inch 98ig boards?

For residential applications in 2026, the maximum joist spacing for 5/4-inch (nominal 1-inch) thick boards is 16 inches on center. If you are installing the boards at a 45-degree angle (diagonal), you must reduce the joist spacing to 12 inches on center to prevent "bounce" or deflection.

Final Recommendations for Your 2026 Project

Whether you are replacing a few rotted planks or embarking on a full-scale backyard renovation, the "decking boards menards 98ig" search highlights the most cost-effective, durable solution for the current year. By prioritizing Ground Contact (UC4A) ratings and following strict 2026 IRC fastener protocols, you can ensure your deck remains a safe, beautiful extension of your home for two decades. Always verify your local regional inventory, as the 98ig batches move quickly during the peak spring and summer building months of 2026.