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1x4 Ipe Channel Siding board profile diagram
Siding

1x4 Ipe Channel Siding

This 1x4 Ipe siding board (Channel profile) 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 1x4 Ipe siding boards 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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Ships Nationwide
SKU: IPE-1X4-CHAN-SB-L1

Configure Your Order

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

Architectural-grade Ipe siding in 1x4 channel profile for superior weather resistance and aesthetic definition.

Channel

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:1.3 lbs

1x4 Ipe Channel Siding — Complete Guide

Everything you need to know about channel ipe siding

About 1x4 Ipe Channel Siding

Ipe is widely regarded as the premium selection for exterior rainscreen and cladding applications due to its exceptional density and natural resistance to environmental stressors. When milled into a channel profile, the material provides distinct shadow lines that add visual depth to building envelopes. The geometry of the channel profile assists in managing thermal expansion and contraction while promoting airflow, making it an ideal choice for both residential and commercial architectural designs.

  • Natural resistance to decay, fungi, and insect infestation.
  • Channel profile creates clean, modern horizontal or vertical shadow lines.
  • High dimensional stability reduces cupping and warping in harsh climates.
  • Suitable for both open and closed rainscreen wall systems.

Key Benefits

Exceptional Hardness

With a Janka rating of 3680, Ipe is significantly harder than domestic hardwoods, ensuring resistance to impact and mechanical wear.

Natural Longevity

The high tannin content and density provide inherent protection against rot and moisture, allowing for service lives exceeding 40 years.

Architectural Aesthetic

The channel profile offers a refined, linear look with consistent shadow reveal, perfect for modern facades.

Technical Specifications

Janka Hardness

3680

Density

Approx. 69 lbs/cu. ft.

Durability Rating

Class 1 (Highest)

Dimensional Stability

High

Installation Guide

Difficulty:
Professional recommended

Key Tips:

  • Always pre-drill holes for fasteners to prevent splitting due to high density.
  • Allow for proper acclimation on-site prior to installation.
  • Maintain a consistent gap for ventilation to prevent moisture entrapment.
  • Use stainless steel fasteners to avoid corrosive staining.

Recommended Tools:

Carbide-tipped saw blades
High-torque drill with carbide bits
Stainless steel trim screws
Rainscreen furring strips

Maintenance & Care

Cleaning

Periodic washing with water and a mild detergent to remove accumulated surface dust and debris.

Finishing

Ipe can be left unfinished to weather to a silver-grey patina, or sealed with a high-quality, UV-inhibiting penetrating oil to maintain original coloration.

Weathering

Expect slight color variation over time due to UV exposure; the material will remain structurally sound regardless of color shift.

1x4 Ipe Channel Siding — Frequently Asked Questions

A 1x4 Ipe board weighs approximately 1.28 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 1x4 Ipe board weighs approximately 15 lbs. Always factor weight into your structural and shipping calculations.

1x4 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.

1x4 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 — 1x4 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 1x4 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 1x4 Ipe 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 Ipe. We work only with suppliers who follow responsible forestry practices with full chain-of-custody transparency. 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

1x4 Ipe Channel 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 1x4 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 1x4 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 1x4 profile is precision-milled to tight tolerances and available in Select and Better grade, ensuring consistent quality across your entire project. 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.

1x4 Ipe Siding — Installation & Coverage Specs

  • Recommended joist spacing: 16" on center for 1x4 boards (0.75" actual thickness)
  • Fastener placement: Secure per profile requirements, one fastener per joist minimum
  • Board weight: A 12-foot 1x4 Ipe board weighs approximately 15 lbs (1.26 lbs/LF)
  • Coverage: Each 12-foot 1x4 board covers 3.5 sq ft of siding surface (3.5" 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)

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