The same 26 gauge corrugated panels used for roofing work equally well as exterior wall siding on barns, shops, commercial buildings, and residential outbuildings. Metal siding provides the same durability, fire resistance, and low-maintenance performance as metal roofing, but applied vertically or horizontally on walls rather than at slope on a roof surface.

Why Use Metal Siding?

Metal siding outlasts wood, T1-11, and composite siding options significantly in California’s climate. Wood siding in Sacramento requires repainting every 5–7 years to maintain weatherproofing; T1-11 and LP siding can absorb moisture at cut edges and fastener holes, eventually delaminating; vinyl siding fades and becomes brittle in Sacramento’s intense UV. Metal siding with quality painted galvanized panels requires no painting, no resealing, and no replacement due to UV or moisture degradation.

Vertical vs Horizontal Installation

Vertical installation (corrugations run top to bottom) is the traditional approach for agricultural and commercial buildings. Panels are fastened to horizontal girts at the top, bottom, and intermediate heights. Water runs straight down the corrugation channels and off the panel bottom. This is the simplest and most common approach.

Horizontal installation (corrugations run side to side) creates a more contemporary appearance that’s popular for architectural applications, modern barns, and residential accent walls. Panels are fastened to vertical furring strips at each corner and at 24-inch intervals. Lapping horizontal panels requires attention to water management — the top panel always laps over the bottom.

Applications

• Agricultural barn siding and equipment storage
• Commercial warehouse and shop cladding
• Residential garage and outbuilding walls
• Privacy fencing
• Residential accent walls (exterior and interior)
• ADU construction

Frequently Asked Questions

Do I need different panels for siding vs roofing?

No. The same 26 gauge corrugated panels are used for both roofing and siding. The difference is in the installation: roofing panels run perpendicular to the slope (up the slope), while siding panels typically run vertically (corrugations vertical). The panels themselves are identical.

What accessories do I need for metal siding?

For siding: inside corner L flashing for building corners, 2×2 L flashing for top and bottom edge trim. The same accessories available for roofing work for siding applications.