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Soffit

5/4x6 Jatoba Shiplap Soffit

This 5/4x6 Jatoba soffit board (Shiplap 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 overlapping shiplap profile sheds water naturally and creates a classic, weather-resistant look for 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-SHIP-SB-L1

Configure Your Order

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

Architectural-grade durability meets clean, modern lines in a robust 1x5.5 actual dimension.

Shiplap

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 Shiplap Soffit — Complete Guide

Everything you need to know about shiplap jatoba soffit

About 5/4x6 Jatoba Shiplap Soffit

Jatoba, also known as Brazilian Cherry, provides an exceptional solution for high-end soffit applications. Due to its high density and natural resistance to environmental stressors, it maintains structural integrity in exterior overhead environments where moisture and humidity fluctuations occur. The shiplap profile is precision-milled to allow for seamless, overlapping joints that create clean horizontal lines while facilitating the necessary movement required for exterior wood cladding.

  • Superior dimensional stability suitable for exterior soffit installations
  • Shiplap profile creates a tight, concealed fastener look with consistent spacing
  • High natural density provides inherent protection against mold, rot, and insects
  • Refined aesthetic suitable for modern and traditional architectural styles

Key Benefits

Natural Resistance

Jatoba contains natural oils and high density that offer superior resistance to fungal decay and wood-boring insects without the need for chemical treatments.

Architectural Aesthetic

The rich reddish-brown hues and tight interlocking grain provide a sophisticated, uniform look for roof overhangs and porch ceilings.

Structural Longevity

With a Janka hardness of 2350, this species maintains its shape and surface finish even in challenging outdoor climates.

Technical Specifications

Janka Hardness

2350 lbf

Density

Approx. 58-60 lbs/cu. ft.

Durability Rating

Class 1 (Highly durable; excellent resistance to decay and insects)

Dimensional Stability

Good; low movement relative to other exotic hardwoods when properly acclimatized

Installation Guide

Difficulty:
Professional/Intermediate

Key Tips:

  • Ensure proper ventilation behind the shiplap to prevent moisture buildup
  • Use stainless steel fasteners to avoid corrosive staining from tannins
  • Pre-drill all holes to prevent splitting given the high density of the material
  • Allow for expansion gaps at edges if installing in high-humidity regions

Recommended Tools:

Stainless steel trim screws
High-speed carbide-tipped saw blades
Pneumatic finish nailer (with stainless nails)
Drill bits for pilot holes

Maintenance & Care

Cleaning

Use periodic mild soap and water to remove dust and debris. Avoid high-pressure washing which may damage the wood fibers.

Finishing

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

Weathering

Jatoba is stable, but like all hardwoods, it will react to UV exposure by lightening or silvering over time if left untreated.

5/4x6 Jatoba Shiplap 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 Shiplap 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 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′.

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

Related Jatoba Products & Resources

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