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1x2 Ipe Shiplap Siding board profile diagram
Siding

1x2 Ipe Shiplap Siding

This 1x2 Ipe Shiplap siding board offers unmatched exterior cladding longevity, backed by Ipe's 3,680 Janka hardness and a natural lifespan of up to 75+ years. The overlapping shiplap profile sheds water naturally and creates a classic, weather-resistant look for exterior cladding and accent walls. In stock and ships nationwide — order Ipe siding online or call 1-844-674-4455 for expert guidance.

1 x 2(0.75"×1.5" actual)[19.0mm × 38.1mm]
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SKU: IPE-1X2-SHIP-SB-L1

Configure Your Order

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

Durable, Aesthetic, and Weather-Resistant Wood Solutions

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:0.55 lbs/LF
1' board:0.6 lbs

1x2 Ipe Shiplap Siding — Complete Guide

Everything you need to know about shiplap ipe siding

About 1x2 Ipe Shiplap Siding

Ipe lumber in a shiplap profile offers an exceptional solution for exterior siding and cladding applications thanks to its remarkable durability and aesthetic appeal. Known for its dimensional stability and incredible weather resistance, ipe maintains its integrity even in challenging outdoor environments. The distinct shiplap design not only enhances visual interest through striking shadow lines but also facilitates a straightforward installation process, making it a preferred choice among builders and architects alike.

  • Superior weather resistance
  • Exceptional dimensional stability
  • Aesthetically pleasing shiplap profile
  • Easy installation with defined shadow lines

Key Benefits

Exceptional Durability

Ipe is renowned for its remarkable hardness, offering high resistance to wear, rot, and insect damage, ensuring longevity in exterior applications.

Aesthetic Appeal

The shiplap profile provides a unique visual texture, creating appealing shadow lines and enhancing the architectural features of any exterior surface.

Sustainable Choice

Sourced from responsibly managed forests, ipe lumber supports sustainable building practices while providing outstanding performance.

Technical Specifications

Janka Hardness

3680

Density

69 lbs/ft³

Durability Rating

Class 1 (Highly Durable)

Dimensional Stability

Low movement; excellent for exterior applications

Installation Guide

Difficulty:
Moderate

Key Tips:

  • Ensure proper spacing for expansion and contraction
  • Use stainless steel or coated fasteners to prevent corrosion
  • Follow local building codes for ventilation and drainage

Recommended Tools:

Drill with driver bits
Circular saw
Measuring tape
Level

Maintenance & Care

Cleaning

Regularly clean with a mild detergent and water to remove dirt and stains.

Finishing

Apply oil-based finishes to enhance color and provide additional protection.

Weathering

Ipe weather to a silvery patina over time, which is common and does not detract from durability.

Frequently Asked Questions

A 1x2 Ipe board weighs approximately 0.55 lbs per linear foot. Ipe has a density of about 69 lbs/ft³, making it one of the densest commercially available hardwoods. Always factor weight into your structural and shipping calculations.

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

Ipe outperforms composite in hardness (3,680 vs ~200 Janka), lifespan (up to 75+ years vs 25-30 years), and heat resistance. Unlike composites, Ipe won't melt, warp in extreme heat, or fade significantly. While initial cost is similar ($8-15/LF installed), Ipe costs less over its much longer lifetime. Composites do offer lower upfront maintenance.

Ipe 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.

Ipe is DIY-friendly with proper preparation. Key requirements: (1) Always pre-drill all screw holes — Ipe 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 1x2 Ipe board has actual finished dimensions of 0.75" × 1.5" (19.0 x 38.1 mm). The "1x2" 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" × 1.5") when calculating material quantities and coverage for your project.

We responsibly, legally, and ethically source all our Ipe. We work only with suppliers who follow responsible forestry practices with full chain-of-custody transparency. Note: We are not FSC certified. Ipe trees grow naturally in diverse tropical forests and regenerate well under managed harvest. The extremely long lifespan (up to 75+ 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

Alternative Siding Option

This same Ipe 1 x 2 is also available in a different siding profile:

Rainscreen

Designed for rainscreen clip systems with ventilation gap

1 x 2 Ipe Shiplap Siding — Complete Buyer's Guide

Ipe, also known as Brazilian Walnut, is a premium tropical hardwood sourced from Central and South America (Brazil, Bolivia, Peru). With a Janka hardness rating of 3,680 lbf and a density of 69 lbs/ft³, Ipe is classified as Class 1 - Very Durable (Up to 75+ Years) — one of the most durable commercial lumber species available. The heartwood exhibits rich brown to olive-brown, darkening to reddish-brown with age with interlocked to irregular grain, fine to medium texture, creating a striking natural appearance that improves with age.

As exterior cladding, Ipe 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 Ipe siding delivers a service life of 75+ years with minimal maintenance — an optional annual oil treatment preserves the original color, or you can let the wood weather to a distinguished silver-gray patina. Ipe carries a Class A (0-25 flame spread), making it suitable for wildfire-prone regions where code-compliant materials are required.

The 1 x 2 shiplap profile creates an overlapping joint with a distinctive shadow line between boards. Popular for siding, accent walls, and architectural cladding applications. All Ipe lumber is available in Select and Better grade with lengths ranging from 4′ to 20′. For detailed step-by-step instructions, consult our Ipe installation guide. Long-term care recommendations are covered in our Ipe maintenance guide.

Janka Hardness

3,680 lbf

Service Life

75+ years

Durability

Very Durable (Up to 75+ Years)

Fire Rating

Class A (0-25 flame spread)

1 x 2 Ipe Siding — Frequently Asked Questions

Ipe siding has an expected service life of 75+ years when properly installed and maintained. This is 3-5x longer than pressure-treated pine and 2-3x longer than cedar. Ipe achieves this exceptional longevity through its natural density (Janka hardness: 3,680 lbf) and Class 1 durability rating, which provide built-in resistance to rot, decay, insects, and fungal growth — all without chemical preservatives.

Use 305 or 316 stainless steel screws for all Ipe installations — never use galvanized or coated deck screws, which will corrode and stain the wood. Pre-drill every hole using a countersink bit sized for your screw. For 1 x 2 boards, place screws approximately 1" from each edge and 3/4" from board ends. A combination drill/driver with a clutch setting prevents over-driving into this extremely hard wood.

Ipe siding pricing varies by size, profile, grade, and board length. 1 x 2 Shiplap boards in Select and Better grade typically range from $4-$12 per linear foot before shipping. While the upfront cost is higher than pressure-treated lumber, Ipe's 75+ years service life makes the lifetime cost per year significantly lower. Use our online configurator above to see exact pricing for your selected options, or request a custom quote for large orders.

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