5/4x4 Ipe Decking board profile diagram
Decking

5/4x4 Ipe Decking

Eased-Edge (E4E) — Standard Profile

This 5/4x4 Ipe decking board pairs the proven outdoor performance of Ipe (Brazilian Walnut) with a 3,680 Janka hardness rating — one of the hardest commercially available woods on earth. As a premium Ipe wood decking option, this Class A fire-rated hardwood withstands extreme weather, UV exposure, and heavy foot traffic without chemical treatment — perfect for exterior decks, patios, and pool surrounds. In stock and ships nationwide — order 5/4x4 Ipe decking boards online or call 1-844-674-4455 for expert guidance.

5/4 x 4(1"×3.5" actual)[25.4mm × 88.9mm]
Contractor Trusted
Expert Backed
Ships Nationwide
SKU: IPE-54X4-E4E-SB-L1

Configure Your Order

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

Durable, Strong, and Weather-Resistant for All Your Decking Needs

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:1.70 lbs/LF
1' board:1.7 lbs

5/4x4 Ipe Decking — Complete Guide

Everything you need to know about eased-edge ipe decking

About 5/4x4 Ipe Decking

IPE lumber stands out as one of the premier choices for decking applications due to its extraordinary strength, exceptional durability, and high resistance to weather elements. Its dense composition ensures that it withstands the trials of time and exposure, making it ideal for both residential and commercial decking projects. The E4E (Eased 4 Edges) profile enhances the aesthetic appeal of deck boards while also providing practical advantages regarding fastening and installation ease, resulting in a smooth, professional finish.

  • Exceptional strength and density for robust decks
  • Highly resistant to decay, insects, and moisture
  • E4E profile for both aesthetic appeal and easy installation
  • Long lifespan — perfect for outdoor applications

Key Benefits

Unmatched Durability

IPE is known for its exceptional resistance to decay and insects, making it a long-lasting choice for deck construction.

Low Maintenance

Once installed, IPE requires minimal upkeep, saving time and money over the life of your deck.

Elevated Aesthetic

The E4E profile provides a clean, smooth finish, enhancing the overall visual appeal of the deck while allowing for hidden fastening systems.

Technical Specifications

Janka Hardness

3680

Density

69 lbs/ft³

Durability Rating

Class A (highest rating based on natural durability)

Dimensional Stability

Excellent stability with minimal shrinkage or swelling

Installation Guide

Difficulty:
Intermediate to Advanced

Key Tips:

  • Ensure correct joist spacing (typically 16" on center) for optimal support
  • Leave appropriate expansion gaps between boards to account for changes in moisture
  • Utilize stainless steel screws to prevent rust and discoloration

Recommended Tools:

Power drill
Screwdriver
Measuring tape
Circular saw

Maintenance & Care

Cleaning

Regularly sweep debris off the deck and clean with a wood cleaner to prevent mold and mildew buildup.

Finishing

Seal the deck every 12-18 months with a UV protectant to maintain color and longevity.

Weathering

over time, IPE will weather to a silver-gray patina if left untreated, which can be desirable for aesthetics.

5/4x4 Ipe Decking — Frequently Asked Questions

A 5/4x4 Ipe board weighs approximately 1.70 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 5/4x4 Ipe board weighs approximately 20 lbs. Always factor weight into your structural and shipping calculations.

5/4x4 Ipe decking 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.

5/4x4 Ipe decking 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 — 5/4x4 Ipe wood decking 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 5/4x4 decking 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 5/4x4 Ipe board has actual finished dimensions of 1" × 3.5" (25.4 x 88.9 mm). The "5/4x4" 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" × 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. 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

5/4x4 Ipe Decking — 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 5/4x4 Ipe Wood for Your Deck?

Ipe decking delivers a naturally slip-resistant, splinter-free surface that stays cool underfoot even in direct sunlight. Unlike composite or pressure-treated alternatives, it never fades to a dull gray unless you want the natural silver patina look. Properly installed 5/4x4 Ipe decking 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 5/4x4 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.

5/4x4 Ipe Decking — Installation & Coverage Specs

  • Recommended joist spacing: 16"–24" on center for 5/4x4 boards (1" actual thickness)
  • Fastener placement: Face-screw with two stainless steel screws per joist, approximately 1" from each edge of the 3.5" face
  • Board weight: A 12-foot 5/4x4 Ipe board weighs approximately 20 lbs (1.68 lbs/LF)
  • Coverage: Each 12-foot 5/4x4 board covers 3.5 sq ft of decking 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)

5/4x4 Ipe Decking — Frequently Asked Questions

5/4x4 Ipe decking 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 5/4x4 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.

5/4x4 Ipe decking pricing varies by profile, grade, and board length. 5/4x4 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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