Tigerwood, also known as Goncalo Alves, is a premium tropical hardwood sourced from Tropical Central and South America (Brazil, Colombia, Venezuela). With a Janka hardness rating of 2,160 lbf and a density of 58 lbs/ft³, Tigerwood is classified as Class 2 - Durable — one of the most durable commercial lumber species available. The heartwood exhibits golden to reddish-brown with dramatic dark brown to black stripes with interlocked to wavy grain, medium texture, creating a striking natural appearance that improves with age.
Why Choose 5/4x4 Tigerwood Wood for Your Siding?
As exterior cladding, Tigerwood siding provides a weather-tight barrier with exceptional impact resistance. The dense grain resists dents, hail damage, and woodpecker damage far better than cedar, pine, or fiber cement alternatives. Properly installed 5/4x4 Tigerwood siding delivers a service life of 40+ years with minimal maintenance — an optional annual oil treatment preserves the original color, or you can let the Tigerwood wood weather to a distinguished silver-gray patina. Tigerwood carries a Class A - Low flame spread, making it suitable for wildfire-prone regions where code-compliant materials are required.
The 5/4x4 profile is precision-milled to tight tolerances and available in Select and Better grade, ensuring consistent quality across your entire project. All Tigerwood lumber is available in Select and Better grade with lengths ranging from 4′ to 20′. For detailed step-by-step instructions, consult our Tigerwood installation guide. Long-term care recommendations are covered in our Tigerwood maintenance guide.
5/4x4 Tigerwood Siding — Installation & Coverage Specs
- Recommended joist spacing: 16"–24" on center for 5/4x4 boards (1" actual thickness)
- Fastener placement: Secure per profile requirements, one fastener per joist minimum
- Board weight: A 12-foot 5/4x4 Tigerwood board weighs approximately 17 lbs (1.41 lbs/LF)
- Coverage: Each 12-foot 5/4x4 board covers 3.5 sq ft of siding surface (3.5" face width)
- Pre-drilling required: Always pre-drill in Tigerwood — the 2,160 lbf hardness prevents direct screwing
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