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 1x3 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 1x3 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 1x3 shiplap profile creates an overlapping joint with a distinctive shadow line between boards. Popular for siding, accent walls, and architectural cladding applications. All Jatoba lumber is available in Select and Better grade with lengths ranging from 4′ to 20′.
1x3 Jatoba Siding — Installation & Coverage Specs
- Recommended joist spacing: 16" on center for 1x3 boards (0.75" actual thickness)
- Fastener placement: Secure per profile requirements, one fastener per joist minimum
- Board weight: A 12-foot 1x3 Jatoba board weighs approximately 9 lbs (0.74 lbs/LF)
- Coverage: Each 12-foot 1x3 board covers 2.5 sq ft of siding surface (2.5" face width)
- Pre-drilling required: Always pre-drill in Jatoba — the 2,350 lbf hardness prevents direct screwing