1x4 Garapa Shiplap Soffit board profile diagram
Soffit

1x4 Garapa Shiplap Soffit

This 1x4 Garapa Shiplap soffit board combines the rich grain of Garapa (Brazilian Ash) with 1,510 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 Garapa soffit online or call 1-844-674-4455 for expert guidance.

1 x 4(0.75"×3.5" actual)[19.0mm × 88.9mm]
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SKU: GARA-1X4-SHIP-SB-L1

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Exceptional Durability and Aesthetic Appeal for Exterior Applications

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:1.28 lbs/LF
1' board:1 lbs

1x4 Garapa Shiplap Soffit — Complete Guide

Everything you need to know about shiplap garapa soffit

About 1x4 Garapa Shiplap Soffit

Garapa lumber, specifically in a 1x4 shiplap profile, is an outstanding choice for soffit applications due to its exceptional dimensional stability and natural resistance to moisture. This species is built to withstand various environmental challenges, making it ideal for overhead installations. The shiplap profile not only offers clean lines that enhance the visual integrity of structures but is also engineered for efficient ventilation. This combination ensures that your soffits maintain their integrity and performance over time while providing an attractive architectural finish.

  • Superior dimensional stability minimizes warping and twisting
  • High durability ratings ensure long-lasting performance
  • Resistant to moisture damage, rot, and insects
  • Shiplap design promotes enhanced ventilation and aesthetic appeal

Key Benefits

Exceptional Durability

Garapa's high Janka hardness rating of 1650 indicates its resistance to dents and impacts, making it suitable for demanding exterior applications.

Natural Moisture Resistance

Garapa lumber is inherently resistant to moisture damage and rot, ensuring that soffit installations maintain structural integrity over time.

Aesthetic Versatility

The shiplap profile and warm hues of Garapa enhance any architectural style, providing both function and beauty.

Technical Specifications

Janka Hardness

1650

Density

Approximately 40 lbs/ft³

Durability Rating

Class 1 (very durable)

Dimensional Stability

Highly stable under variable humidity conditions

Installation Guide

Difficulty:
Moderately Easy

Key Tips:

  • Use stainless steel or coated fasteners to prevent rusting
  • Allow for adequate expansion spacing between boards
  • Ensure proper ventilation to avoid moisture buildup

Recommended Tools:

Circular saw
Check gauge or measurement tape
Drill/driver for fastening

Maintenance & Care

Cleaning

Occasionally clean the surface with mild soap and water to remove dirt and debris; avoid harsh chemicals that may damage the finish.

Finishing

For optimal longevity, an application of UV-protective exterior wood finish is recommended to enhance color and grain appearance.

Weathering

Garapa will naturally weather to a silver-gray patina over time if left untreated; periodic maintenance can retain its original color.

Frequently Asked Questions

A 1x4 Garapa board weighs approximately 1.28 lbs per linear foot. Garapa has a density of about 50-60 lbs/ft³, making it one of the densest commercially available hardwoods. Always factor weight into your structural and shipping calculations.

Yes — Garapa is rated Durability Class 1 (Very Durable) and is naturally resistant to rot, decay, insects, and fungal attack without chemical treatment. It is naturally durable and performs exceptionally well in full exterior exposure including soffit applications. While ground contact is possible, we recommend elevating Garapa boards at least 6" above grade for maximum lifespan.

Garapa outperforms composite in hardness (1,510 vs ~200 Janka), lifespan (up to 30+ years vs 25-30 years), and heat resistance. Unlike composites, Garapa won't melt, warp in extreme heat, or fade significantly. While initial cost is similar ($8-15/LF installed), Garapa costs less over its much longer lifetime. Composites do offer lower upfront maintenance.

Garapa 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.

Garapa is DIY-friendly with proper preparation. Key requirements: (1) Always pre-drill all screw holes — Garapa 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 1x4 Garapa board has actual finished dimensions of 0.75" × 3.5" (19.0 x 88.9 mm). The "1x4" 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 (0.75" × 3.5") when calculating material quantities and coverage for your project.

We responsibly, legally, and ethically source all our Garapa. We work only with suppliers who follow responsible forestry practices with full chain-of-custody transparency. Note: We are not FSC certified. Garapa trees grow naturally in diverse tropical forests and regenerate well under managed harvest. The extremely long lifespan (up to 30+ 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