What Else You’ll Need for Your Building Project

Steel trusses are the backbone of your structure—but they’re just one part of the complete building package. To bring your project together, you’ll need a combination of wood materials, roofing, and foundation supplies. This page will walk you through the other key components to plan for alongside your trusses.

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1. Structural Wood Components

While your roof structure will use steel trusses, wood is still a critical part of the overall framing:

Posts

- Treated wood posts are typically set in the ground or on top of concrete piers to support the trusses.

- Common post sizes include 6x6 or 8x8, depending on the span and local code requirements.

- Posts should be properly treated for ground contact to ensure long-term durability.

Purlins and Girts

- 2x6 lumber is most commonly used for purlins (roof framing between trusses) and girts (wall framing).

- Purlins run horizontally across the trusses to support roofing materials.

- Girts attach horizontally to the posts to support wall sheathing or metal siding.

Bracing and Blocking

- Bracing adds stability during construction and long-term.

- Blocking may be required at purlin or girt joints, depending on your design and local code.

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2. Foundation Materials

Your posts and trusses need a stable foundation to ensure the building remains straight, level, and secure:

- Concrete for post footings or piers.

- Rebar or other reinforcement for added strength.

- Optional post brackets or perma-columns for above-ground post connections.

The type and amount of concrete will depend on your building size and local soil conditions.

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3. Roofing Materials

Once your trusses and purlins are installed, you’ll need a roof covering. There are several options to choose from depending on your budget, desired look, and durability requirements:

Metal Roofing (Most Common)

- Galvanized or painted steel panels are the standard roofing choice for most truss buildings.

- Advantages include long lifespan, low maintenance, and ease of installation.

- Available in a variety of colors and profiles.

Shingles

- Asphalt shingles can be installed on roof decking if desired for a more residential look.

- Requires sheathing such as OSB or plywood over the purlins.

Other Options

- Standing seam metal roofing for a high-end finish and superior weather resistance.

- Specialty panels like polycarbonate or translucent materials for natural light in select areas.

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4. Wall Cladding & Finishing Materials

Depending on your building style, you may also need:

- Metal siding panels for a clean, durable exterior.

- OSB or plywood sheathing beneath siding for additional strength or for shingle installations.

- Trim pieces, closures, and fasteners to finish edges and seal gaps.

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5. Fasteners & Hardware

Every part of the building needs to be secured properly:

- Lag bolts, screws, and nails for attaching purlins, girts, and roofing.

- Closure strips and sealants for weatherproofing the roof and walls.

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6. Doors, Windows & Accessories

Finally, consider the finishing touches:

- Roll-up doors, sliding barn doors, or overhead garage doors depending on your use.

- Windows for natural light and ventilation.

- Cupolas, ridge vents, or other ventilation options to manage airflow.

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Open vs. Enclosed Building Options

Not every building requires the same components. At Blackwater Truss Systems, our trusses can be used for both fully enclosed buildings and open-style structures:

- Enclosed buildings typically include wall girts, siding, doors, and windows as part of the overall build.

- Open structures such as hay shelters, equipment covers, or livestock loafing sheds may not require wall framing, siding, or doors.

When planning your project, decide whether you want an enclosed or open structure—this will determine which materials you need to complete the build.

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Key Takeaway

Your trusses provide the structure, but the wood framing, foundation, roofing, and finishing components complete the building. Planning for these materials early ensures a smooth construction process and helps you budget accurately.

If you have questions about what materials you’ll need for your specific project, give us a call at (850) 623-1414 or visit blackwatertruss.com.