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Soffit

5/4x6 Jatoba Rainscreen Soffit

This 5/4x6 Jatoba soffit board (Rainscreen profile) combines the rich grain of Jatoba (Brazilian Cherry) with 2,350 Janka hardness, making it ideal for exposed eave linings and covered ceilings that endure for decades. The rainscreen profile is designed for ventilated clip systems, allowing airflow behind the cladding for superior moisture management on eave linings, ceilings, and covered areas. In stock and ships nationwide — order 5/4x6 Jatoba soffit boards online or call 1-844-674-4455 for expert guidance.

5/4 x 6(1"×5.5" actual)[25.4mm × 139.7mm]
Contractor Trusted
Expert Backed
Ships Nationwide
SKU: JATO-54X6-RAIN-SB-L1

Configure Your Order

Select profile, grade, and length below to see live pricing

Engineered 5/4x6 Jatoba (Brazilian Cherry) for high-performance soffit and architectural cladding applications.

Rainscreen

Select and Better is our standard grade

Length Guide

Available lengths: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22′

Estimated Shipping Weight
Weight per linear foot:2.67 lbs/LF
1' board:2.7 lbs

5/4x6 Jatoba Rainscreen Soffit — Complete Guide

Everything you need to know about rainscreen jatoba soffit

About 5/4x6 Jatoba Rainscreen Soffit

Jatoba, often referred to as Brazilian Cherry, is an ideal selection for exterior soffit applications due to its exceptional density and natural resistance to environmental stressors. When milled into a rainscreen profile, this lumber allows for precision installation, creating a sophisticated, clean aesthetic while providing the necessary air movement to prevent moisture entrapment in overhead assemblies.

  • Naturally high resistance to decay and moisture-related warping.
  • Rainscreen profile facilitates optimal airflow for long-term structural integrity.
  • Dimensionally stable for consistent, clean sightlines in soffit installations.
  • Exceptional strength-to-weight ratio suitable for horizontal overhead spans.

Key Benefits

Natural Decay Resistance

Jatoba contains high levels of natural oils and tannins that repel wood-boring insects and resist rot without the need for chemical preservatives.

Superior Hardness

With a Janka rating of 2350, this species provides an incredibly hard surface that resists impacts and maintains its structural shape in outdoor climates.

Architectural Aesthetic

The deep, rich reddish-brown hues and tight, interlocking grain pattern provide a premium finish that elevates exterior architectural designs.

Technical Specifications

Janka Hardness

2350

Density

Approx. 910 kg/m3

Durability Rating

Class 1 (Highly durable; resistant to decay and termites)

Dimensional Stability

High; low movement coefficient when properly acclimated

Installation Guide

Difficulty:
Professional Recommended

Key Tips:

  • Always pre-drill for screws to prevent splitting due to the high Janka hardness.
  • Maintain consistent spacing as per rainscreen architectural standards to ensure ventilation.
  • Ensure proper acclimation to local humidity levels for at least 72 hours before installation.
  • Use stainless steel fasteners to prevent staining and corrosion caused by wood tannins.

Recommended Tools:

Carbide-tipped saw blades
High-speed steel or cobalt drill bits
Stainless steel fasteners
Leveling spacers

Maintenance & Care

Cleaning

Periodic cleaning with a mild soap solution and a soft brush is sufficient to remove debris and surface dust.

Finishing

Apply a high-quality, UV-inhibiting penetrating oil finish to maintain the original color; otherwise, the wood will naturally weather to a silver-grey patina.

Weathering

Jatoba is stable enough to be left unfinished, though natural UV exposure will gradually change its color over time.

5/4x6 Jatoba Rainscreen Soffit — Frequently Asked Questions

A 5/4x6 Jatoba board weighs approximately 2.67 lbs per linear foot. Jatoba has a density of about 57 lbs/ft³, making it one of the densest commercially available hardwoods. A 12-foot 5/4x6 Jatoba board weighs approximately 26 lbs. Always factor weight into your structural and shipping calculations.

5/4x6 Jatoba soffit has an expected service life of up to 40+ years when properly installed. This is 3-5× longer than pressure-treated pine and 2-3× longer than cedar. Jatoba achieves this exceptional longevity through its 2,350 Janka hardness and Class 1 durability rating, providing built-in resistance to rot, decay, insects, and fungal growth without chemical preservatives.

5/4x6 Jatoba soffit pricing varies by profile, grade, and board length. Select and Better grade boards typically range from $4-$12 per linear foot before shipping. While the upfront cost is higher than pressure-treated lumber, Jatoba's up to 40+-year service life makes the lifetime cost per year significantly lower. Use the configurator above for exact pricing, or request a custom quote for large orders.

Yes — 5/4x6 Jatoba wood soffit outperforms composite in hardness (2,350 vs ~200 Janka), lifespan (up to 40+ years vs 25-30 years), and heat resistance. Unlike composites, Jatoba won't melt, warp in extreme heat, or fade significantly. While initial cost is similar ($8-15/LF installed), Jatoba wood decking costs less over its much longer lifetime. Composites do offer lower upfront maintenance, but Jatoba's natural beauty and durability make it the superior long-term investment.

Jatoba is widely considered one of the best woods for 5/4x6 soffit boards. With a 2,350 Janka hardness rating, Class A fire-rated certification, and up to 40+-year lifespan, Jatoba (Brazilian Cherry) outperforms nearly every other commercially available wood species. Other excellent options include Cumaru (Brazilian Teak) and Massaranduba (Brazilian Redwood), but Jatoba remains the industry benchmark for premium outdoor hardwood applications.

Jatoba requires minimal maintenance. Without treatment, it naturally weathers to an elegant silver-gray patina over 6-12 months. To maintain the original warm brown color, apply a UV-inhibiting penetrating oil (like Ipe Oil or Penofin) once or twice annually. Cleaning involves periodic washing with a mild soap solution. No sanding, staining, or sealing is required for structural durability.

Jatoba is DIY-friendly with proper preparation. Key requirements: (1) Always pre-drill all screw holes — Jatoba is too hard for direct screwing. (2) Use only 305 or 316 stainless steel fasteners — standard hardware will corrode and stain. (3) Face-screw with stainless steel trim-head screws. (4) Allow boards to acclimate on-site for 5-7 days before installation. A compound miter saw with a carbide-tipped blade is recommended.

A nominal 5/4x6 Jatoba board has actual finished dimensions of 1" × 5.5" (25.4 x 139.7 mm). The "5/4x6" is the nominal (rough-cut) size — after kiln drying and precision surfacing, all hardwood lumber finishes slightly smaller. This is standard across the lumber industry, similar to how a nominal 2×4 softwood measures 1.5" × 3.5". Always use the actual dimensions (1" × 5.5") when calculating material quantities and coverage for your project.

We responsibly, legally, and ethically source all our Jatoba. We work only with suppliers who follow responsible forestry practices with full chain-of-custody transparency. Jatoba trees grow naturally in diverse tropical forests and regenerate well under managed harvest. The extremely long lifespan (up to 40+ years) means fewer replacements compared to softwood or composite alternatives, reducing long-term environmental impact.

Shipping & Delivery

Nationwide delivery: We ship to all 50 states via LTL freight, flatbed, or terminal pickup

Typical lead time: 5-10 business days for standard orders (custom milling may add 2-3 weeks)

Shipping estimate: Final freight cost calculated at checkout based on your location and order size

Rush service available: Contact us for expedited milling and shipping options

5/4x6 Jatoba Rainscreen Soffit — Complete Buyer's Guide

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 5/4x6 Jatoba Wood for Your Soffit?

Jatoba soffit and porch ceiling boards create a warm, premium overhead aesthetic that vinyl and aluminum simply cannot replicate. The natural grain pattern adds architectural character to any covered outdoor space. Properly installed 5/4x6 Jatoba soffit 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 5/4x6 rainscreen profile is engineered for open-joint cladding systems with ventilation gaps behind the boards. This modern system manages moisture while creating a striking contemporary facade. All Jatoba lumber is available in Select and Better grade with lengths ranging from 4′ to 20′.

5/4x6 Jatoba Soffit — Installation & Coverage Specs

  • Recommended joist spacing: 16"–24" on center for 5/4x6 boards (1" actual thickness)
  • Fastener placement: Secure per profile requirements, one fastener per joist minimum
  • Board weight: A 12-foot 5/4x6 Jatoba board weighs approximately 26 lbs (2.18 lbs/LF)
  • Coverage: Each 12-foot 5/4x6 board covers 5.5 sq ft of soffit surface (5.5" face width)
  • Pre-drilling required: Always pre-drill in Jatoba — the 2,350 lbf hardness prevents direct screwing

Janka Hardness

2,350 lbf

Service Life

40+ years

Durability

Class 1-2 - Durable

Fire Rating

Class A

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