1x6 Ipe Siding board profile diagram
Siding

1x6 Ipe Siding

Eased-Edge (E4E) — Standard Profile

This 1x6 Ipe siding board offers unmatched exterior cladding longevity, backed by Ipe's 3,680 Janka hardness and a natural lifespan of up to 75+ years. As a premium Ipe wood siding option, this Class A fire-rated hardwood withstands extreme weather, UV exposure, and heavy foot traffic without chemical treatment — perfect for exterior cladding and accent walls. In stock and ships nationwide — order 1x6 Ipe siding boards online or call 1-844-674-4455 for expert guidance.

1 x 6(0.75"×5.5" actual)[19.0mm × 139.7mm]
Contractor Trusted
Expert Backed
Ships Nationwide
SKU: IPE-1X6-E4E-SB-L1

Configure Your Order

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

Enhance your exterior with Ipe in e4e profile

Eased-Edge (Standard)

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:2.01 lbs/LF
1' board:2.0 lbs

1x6 Ipe Siding — Complete Guide

Everything you need to know about eased-edge ipe siding

About 1x6 Ipe Siding

Ipe lumber is a highly revered choice for exterior siding and cladding applications due to its exceptional dimensional stability and outstanding weather resistance. The e4e profile of Ipe enhances its visual appeal by creating clean, distinct shadow lines, while maintaining a seamless finish that helps in effective water drainage when installed vertically. This profile is designed specifically for aesthetics, ensuring that your project achieves a sophisticated look, and it can be installed either horizontally or vertically, adapting to various architectural designs.

  • Exceptional dimensional stability under varying weather conditions
  • Superior weather resistance, reducing failure rates in outdoor applications
  • e4e profile provides improved aesthetics and shadow lines
  • Suitable for both vertical and horizontal installations

Key Benefits

Durability

Ipe is renowned for its remarkable resistance to rot and insect infestations, ensuring a long lifespan in outdoor environments.

Aesthetic Appeal

The natural beauty of Ipe, combined with its rich colors and grain patterns, provides a striking visual impact for any exterior application.

Longevity

With proper maintenance, Ipe can last several decades, making it a cost-effective choice over time for siding and cladding.

Technical Specifications

Janka Hardness

3680

Density

69 lbs/ft³

Durability Rating

Class 1 (Very Durable)

Dimensional Stability

Highly stable, minimal movement with changes in humidity

Installation Guide

Difficulty:
Moderate

Key Tips:

  • Ensure materials are acclimated to the installation environment
  • Maintain appropriate spacing to allow for wood expansion and contraction
  • Consider using a ventilated wall assembly to enhance longevity

Recommended Tools:

Tape measure
Circular saw
Drill/driver
Screwdriver

Maintenance & Care

Cleaning

Clean regularly with gentle soap and water; avoid harsh chemicals to maintain the wood's integrity.

Finishing

For wood that is weathered, consider applying an appropriate wood finish to enhance color and protect against UV damage.

Weathering

While Ipe will weather to an attractive silver-gray if left untreated, it can be oil-finished to maintain its original rich brown color.

1x6 Ipe Siding — Frequently Asked Questions

A 1x6 Ipe board weighs approximately 2.01 lbs per linear foot. Ipe has a density of about 69 lbs/ft³, making it one of the densest commercially available hardwoods. A 12-foot 1x6 Ipe board weighs approximately 24 lbs. Always factor weight into your structural and shipping calculations.

1x6 Ipe siding has an expected service life of up to 75+ years when properly installed. This is 3-5× longer than pressure-treated pine and 2-3× longer than cedar. Ipe achieves this exceptional longevity through its 3,680 Janka hardness and Class 1 durability rating, providing built-in resistance to rot, decay, insects, and fungal growth without chemical preservatives.

1x6 Ipe siding 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, Ipe's up to 75+-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 — 1x6 Ipe wood siding 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 wood decking costs less over its much longer lifetime. Composites do offer lower upfront maintenance, but Ipe's natural beauty and durability make it the superior long-term investment.

Ipe is widely considered one of the best woods for 1x6 siding boards. With a 3,680 Janka hardness rating, Class A fire-rated certification, and up to 75+-year lifespan, Ipe (Brazilian Walnut) outperforms nearly every other commercially available wood species. Other excellent options include Cumaru (Brazilian Teak) and Massaranduba (Brazilian Redwood), but Ipe remains the industry benchmark for premium outdoor hardwood applications.

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 1x6 Ipe board has actual finished dimensions of 0.75" × 5.5" (19.0 x 139.7 mm). The "1x6" 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" × 5.5") 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

1x6 Ipe 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.

Why Choose 1x6 Ipe Wood for Your Siding?

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 1x6 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 Ipe 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 1x6 eased-edge (E4E) profile features gently rounded edges on all four sides, reducing the risk of splinters and creating a comfortable walking surface. This is the most versatile profile — suitable for face-screw installation with countersunk stainless steel fasteners. 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.

1x6 Ipe Siding — Installation & Coverage Specs

  • Recommended joist spacing: 16" on center for 1x6 boards (0.75" actual thickness)
  • Fastener placement: Face-screw with two stainless steel screws per joist, approximately 1" from each edge of the 5.5" face
  • Board weight: A 12-foot 1x6 Ipe board weighs approximately 24 lbs (1.98 lbs/LF)
  • Coverage: Each 12-foot 1x6 board covers 5.5 sq ft of siding surface (5.5" face width)
  • Pre-drilling required: Always pre-drill in Ipe — the 3,680 lbf hardness prevents direct screwing

Janka Hardness

3,680 lbf

Service Life

75+ years

Durability

Very Durable (Up to 75+ Years)

Fire Rating

Class A (0-25 flame spread)

1x6 Ipe Siding — Frequently Asked Questions

1x6 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 1x6 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.

1x6 Ipe siding pricing varies by profile, grade, and board length. 1x6 E4E 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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