Jatoba is a premium tropical hardwood sourced from Central & South America (Brazil, Peru, Bolivia). With a Janka hardness rating of 2,350 lbf and a density of approximately 60 lbs/ft³, Jatoba is classified as Class 1-2 - Durable — one of the most durable commercial lumber species available.
Why Choose 5/4x4 Jatoba Wood for Your Siding?
As exterior cladding, Jatoba 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 Jatoba 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 Jatoba wood weather to a distinguished silver-gray patina. Jatoba carries a Class A - Low flame spread, making it suitable for wildfire-prone regions where code-compliant materials are required.
The 5/4x4 tongue & groove (T&G) profile features interlocking edges that create a seamless, flush surface with no visible gaps. Ideal for porch ceilings, soffit installations, and covered porch floors. All Jatoba lumber is available in Select and Better grade with lengths ranging from 4′ to 20′.
5/4x4 Jatoba 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 Jatoba board weighs approximately 17 lbs (1.39 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 Jatoba — the 2,350 lbf hardness prevents direct screwing
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