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Ipe (Brazilian Walnut)

Handroanthus spp. (formerly Tabebuia)

Ipe is a structural titan with a fire rating and hardness rivaling steel, offering elite natural resistance to rot and decay.

Janka

3684

Price Tier

$$$$

Dent Risk

Low
Workability
Finishing
Uses
Buying
Ipe (Brazilian Walnut) lumber board with dark brown color and dense straight grain.

Overview

Ipe wood is widely used where you want long-lived exterior performance without chemical treatment, especially decking. The tradeoff is workability: it’s extremely hard and dense, with high cutting resistance and strong tool dulling. It can plane well, but interlocked grain areas can tear out. Gluing can be tricky, so surface prep matters and mechanical fastening often beats relying on adhesive outdoors.

Key takeaways

  • Exceptional durability outdoors, but rough on tooling;
  • Interlocked grain can tear out during surfacing;
  • Glue can be unreliable; prep or fasten mechanically.

At a Glance

Hardness & Heft

Janka: 3684 lbf
Dry weight: 71 lbs/ft³ (1137 kg/m³)

Color & Figure

Color: Brown

Grain: Interlocked
Figure: Usually subtle

Stability & Movement

Movement: Medium

Drying: Checking

Workability

Plays nice with

  • Decking
  • Exterior steps
  • Heavy wear floors

Fights you on

  • Tool life
  • Gluing
  • Drilling

Finishing

  • Surface Prep: 80 to 120 to 150
  • Blotch Risk: Low
  • Pores: Tight

Best Uses

Great for

  • Decking
  • Outdoor stairs
  • Flooring

Avoid for

  • Quick glue-ups
  • Fine carving
  • Budget blades

Where it comes from

Native to Central and South America
Map highlighting northern South America and the Amazon Basin where many tropical hardwood species originate.

Buying notes

Check for legality/documentation; select boards for consistent moisture and minimal end checking.
  • Sold As: Decking boards, dimensional lumber
  • Look For: Straight boards with minimal checking, consistent thickness

What to Watch Out For

  • Surface checking
  • End checks
  • Occasional interlocked tearout zones

Practical Alternatives

  • Cumaru
  • Garapa
  • Teak (easier to work)

Shop Notes / Deeper Dive

Ipe is the king of the outdoors, but a beast in the shop. It’s heavy, abrasive, and will dull a fresh blade in a few boards. If you’re doing a glue-up, wipe the joints with solvent first or the oil will reject the bond. It’s perfect for decks and stairs, but pre-drill every single hole or you’ll spend your afternoon backing out snapped screws.

Like what you see?

While I occasionally work with some of these species, availability varies widely. If you’re researching woods for a custom project, feel free to reach out.

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Reference Notes:  Wood grain and color can vary significantly within a species depending on growing conditions, age, and cut orientation. Images on this page are provided as general reference examples and may not represent every possible variation of the species. Geographic distribution maps illustrate typical native or commonly cultivated ranges and may not reflect every region where the species occurs today.

Additional technical data and botanical information may be referenced from sources such as the USDA Forest Products Laboratory Wood Handbook.