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5/4x6 Ipe Decking board profile diagram
Decking

5/4x6 Ipe Decking

Eased-Edge (E4E) — Standard Profile

This 5/4x6 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 5/4x6 Ipe decking boards online or call 1-844-674-4455 for expert guidance.

5/4 x 6(1"×5.5" actual)[25.4mm × 139.7mm]
Contractor Trusted
Expert Backed
Ships Nationwide
SKU: IPE-54X6-E4E-SB-L1

Configure Your Order

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

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:2.67 lbs/LF
1' board:2.7 lbs

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5/4x6 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 5/4x6 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 5/4x6 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 5/4x6 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.

5/4x6 Ipe Decking — Installation & Coverage Specs

  • Recommended joist spacing: 16"–24" on center for 5/4x6 boards (1" 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 5/4x6 Ipe board weighs approximately 32 lbs (2.64 lbs/LF)
  • Coverage: Each 12-foot 5/4x6 board covers 5.5 sq ft of decking 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)

5/4x6 Ipe Decking — Frequently Asked Questions

5/4x6 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 5/4x6 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.

5/4x6 Ipe decking pricing varies by profile, grade, and board length. 5/4x6 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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