Ipe vs Cumaru vs Garapa: Best Hardwood for Decking

Ipe, Cumaru, and Garapa are three of the most popular tropical hardwoods used for outdoor decking. All three are stronger and more durable than common softwoods such as cedar and pressure-treated pine.

But they are not the same.

Ipe offers the best overall durability and a premium dark appearance. Cumaru provides similar strength for a lower price. Garapa is lighter, easier to work with, and often the most affordable of the three.

So, which hardwood should you choose?

The Short Answer

Ipe is the best choice for maximum durability and long-term performance.

Cumaru offers the best balance of price, strength, and appearance.

Garapa is best for homeowners who want a lighter-colored hardwood at a more affordable price.

For many residential decks, Cumaru may provide the most practical value. It comes close to Ipe in hardness and durability without always carrying the same premium price.

However, the best wood still depends on your budget, preferred color, climate, installer, and willingness to maintain the deck.

This is a research-based comparison using wood-species data, technical information, supplier specifications, and common homeowner concerns. We have not personally tested these decking products.

Ipe vs Cumaru vs Garapa at a Glance

These figures are general reference points. Natural wood varies from board to board. Service life also depends on board quality, installation, ventilation, climate, maintenance, and the supporting deck structure.

What Is Ipe Decking?

Ipe is a dense tropical hardwood from Central and South America. It is also sold under names such as Brazilian Walnut and Lapacho.

Its color can range from olive-brown and reddish-brown to very dark chocolate brown. Some boards have lighter or darker streaks.

Ipe is well known for its:

• High density
• Excellent decay resistance
• Strong insect resistance
• Good weathering performance
• Resistance to dents and surface wear
• Long outdoor service life

It has a Janka hardness of approximately 3,490 pounds-force. That makes it much harder than common North American decking woods.

This hardness is one of Ipe’s greatest strengths. It is also one of its biggest installation challenges.

Cutting Ipe takes more effort. It can dull ordinary blades, and holes normally need to be predrilled. Its density also makes each board heavy.

Read in detail:

Ipe Deck Guide: Pros, Costs, Care for Brazilian Walnut Decks

What Is Cumaru Decking?

Cumaru is another dense South American hardwood. It is sometimes called Brazilian Teak, although it is not related to genuine teak.

Its appearance varies more than Ipe. One Cumaru board may be golden-brown, while the next may have a deep reddish or purplish tone. Dark streaks can also appear through the grain.

Some homeowners love this variation because it gives the deck a rich and natural appearance. Others may prefer the more controlled look of selected Ipe or the lighter consistency of Garapa.

Cumaru has a Janka hardness of approximately 3,330 pounds-force. That places it very close to Ipe.

It also offers:

• Very good decay resistance
• Strong weathering performance
• Good insect resistance
• High resistance to dents
• A long expected service life
• A lower price than Ipe in many markets

For homeowners who want Ipe-like performance without paying the full Ipe price, Cumaru deserves serious consideration.

Read in detail:

Cumaru Wood Decking & Flooring – Things Buyers Should Know

What Is Garapa Decking?

Garapa is a South American hardwood known for its light golden color. It is sometimes sold as Brazilian Ash.

Fresh Garapa normally has a pale yellow, honey, or golden-brown appearance. Its color becomes deeper and warmer after exposure to sunlight.

Garapa is not as hard or heavy as Ipe and Cumaru. However, it is still much harder than cedar and many other traditional decking woods.

It has a Janka hardness of approximately 1,650 pounds-force.

Garapa offers:

• A bright, natural appearance
• Good decay resistance
• Lower weight
• Easier cutting and finishing
• Moderate pricing for an imported hardwood
• Good performance for normal residential decks

Garapa is a particularly attractive option when dark decking would look too heavy around the home. Its golden color works well with light siding, coastal designs, pool areas, and modern outdoor spaces.

Read in detail:

Garapa Decking: Pros, Cons and Outdoor Durability

Which Hardwood Is the Most Durable?

Ipe is generally the most durable of these three hardwoods.

It has excellent resistance to decay, weather, and many wood-damaging insects. Its dense structure also helps it withstand heavy foot traffic and surface wear.

Cumaru is a close second. Its physical strength is very similar to Ipe, and it is also rated as very durable against decay.

Garapa is durable enough for outdoor decking, but it does not provide the same level of decay and insect resistance as Ipe or Cumaru. It may require more attention in humid locations or areas with significant termite activity.

Durability ranking

1. Ipe
2. Cumaru
3. Garapa

That does not mean Garapa is weak. It simply means Ipe and Cumaru belong to a higher performance category.

How Long Does Each Hardwood Deck Last?

A properly installed Ipe deck may last around 40 to 50 years or longer. Cumaru can often provide approximately 30 to 50 years of service. Garapa is more commonly expected to last around 20 to 30 years.

These numbers should be treated as reasonable expectations, not guarantees.

Deck lifespan depends on:

• Lumber grade
• Heartwood and sapwood content
• Moisture level at installation
• Air-dried or kiln-dried condition
• Board thickness
• Ground clearance
• Airflow below the deck
• Fastener quality
• End sealing
• Local rainfall and humidity
• Regular cleaning
• Condition of the deck frame

A premium hardwood surface may outlast the pressure-treated wood frame beneath it. This is easy to overlook when comparing decking materials.

If you want the deck to last several decades, the joists, beams, posts, ledger, flashing, and footings must also be designed for long-term performance.

Lifespan winner: Ipe

Cumaru remains a close alternative, especially when the price difference is significant.

Which Wood Is Hardest?

Ipe and Cumaru are much harder than Garapa.

The Janka test measures the force needed to press a steel ball into the wood. A higher number generally means better resistance to dents and surface wear.

However, hardness does not tell you everything about deck performance.

A harder board may resist dents, but it may also be:

• More difficult to cut
• Harder to drill
• Heavier to carry
• More demanding on tools
• More likely to split if fasteners are not predrilled

Garapa is softer than Ipe and Cumaru, but it is still hard enough for normal outdoor foot traffic. It may show dents or scratches sooner in heavily used areas, though.

Hardness winner: Ipe

The difference between Ipe and Cumaru is small enough that most homeowners will not notice it during normal deck use.

Which Hardwood Looks Best ?

This comes down to personal taste.

Choose Ipe for a rich and premium appearance

Ipe has a fine-to-medium texture with dark brown, olive, and reddish tones. Its color is often associated with luxury decks, boardwalks, and high-end outdoor projects.

The darker appearance can work well with:

• White siding
• Stone walls
• Black railings
• Modern homes
• Traditional brick homes
• Stainless-steel cable railing

Choose Cumaru for warm color and natural variation

Cumaru often includes a mixture of golden, reddish, and darker brown boards. The finished deck can look lively and varied.

This works well if you want the surface to feel natural rather than perfectly uniform.

However, ordering Cumaru without understanding its color variation can lead to disappointment. Ask the supplier whether the boards are sold as mixed color, red Cumaru, or a more carefully selected grade.

Choose Garapa for a light and welcoming deck

Garapa has a yellow to golden-brown color. It gives a deck a brighter appearance and may feel less visually heavy than Ipe or dark Cumaru.

Its lighter shade may also show less heat absorption than a very dark board, although every decking surface can become hot in direct sunlight.

Appearance winner: Personal preference

• Dark and luxurious: Ipe
• Warm and varied: Cumaru
• Light and golden: Garapa

Which Hardwood Stays Cooler?

No hardwood deck remains cool in strong direct sunlight.

Dark surfaces usually absorb more solar energy. For this reason, dark Ipe or dark Cumaru boards may feel hotter than lighter Garapa under similar conditions.

However, surface temperature is affected by several factors:

• Board color
• Sun angle
• Air temperature
• Wind
• Shade
• Surface finish
• Moisture
• Time of day

Do not rely only on the species name. Ipe and Cumaru both have natural color variation, so one board may be much darker than another.

If heat is an important concern, request samples and leave them in direct sunlight at your property. Compare them at the hottest part of the day.

Heat winner: Garapa

Its lighter natural color may be more comfortable in sunny areas, but it can still become hot enough to require footwear.

Which One Is Easier to Install?

Garapa is the easiest of the three to cut, drill, glue, and finish.

Ipe and Cumaru are extremely dense. Both can quickly dull low-quality cutting tools. Cumaru’s interlocked grain and silica content can make machining more difficult.

When installing Ipe or Cumaru, you will generally need:

• Sharp carbide-tipped blades
• Quality drill bits
• Predrilled fastener holes
• Stainless-steel deck screws
• Approved hidden fasteners
• An end-grain sealer
• Correct board spacing
• Proper ventilation below the deck
• Dust collection and personal protection

Predrilling is important. Trying to force a screw directly into these dense boards can damage the fastener, split the board, or create an untidy installation.

Garapa is less demanding, but it is still a dense tropical hardwood. Predrilling near board ends and following the supplier’s fastening instructions remains a sensible approach.

Installation winner: Garapa

For DIY work, Garapa is the most forgiving. Ipe and Cumaru are better suited to an installer who already understands dense hardwood decking.

Which Wood Is Heaviest?

Cumaru is slightly heavier than Ipe on average. Garapa is noticeably lighter.

A heavy deck board is not automatically a structural problem. The complete deck still needs to be designed for its expected dead and live loads.

Weight can affect:

• Delivery
• Manual handling
• Labor time
• Stair access
• Rooftop projects
• Existing deck frames
• Joist and beam design

Do not install dense hardwood boards over an existing frame without checking its condition and capacity.

Lowest-weight winner: Garapa

Which Hardwood Is Most Stable?

All solid wood expands and contracts as moisture conditions change.

Dense tropical hardwood is often described as stable, but poor handling can still cause:

• Cupping
• Checking
• End splitting
• Warping
• Uneven gaps
• Fastener movement

The moisture condition of the boards is important.

Kiln-dried decking may be suitable for covered or lower-moisture applications, while air-dried material is often supplied for exposed exterior decks. The correct choice depends on the supplier’s instructions, board thickness, and local climate.

Ipe is generally valued for good outdoor weathering. Cumaru performs well but can be less forgiving when boards have strongly interlocked grain or inconsistent moisture. Garapa has lower density but can still move if it is stored or installed incorrectly.

Whatever species you select:

1. Store the boards flat and supported.
2. Protect them from uneven sun and rain exposure.
3. Follow the supplier’s acclimation instructions.
4. Measure moisture where appropriate.
5. Leave the required board gaps.
6. Seal freshly cut ends.
7. Provide airflow below the deck.
8. Fasten boards according to the manufacturer’s guide.

Stability winner: Ipe

Board quality and moisture management may matter more than the small difference between species.

Which Hardwood Needs the Least Maintenance?

Ipe, Cumaru, and Garapa can all be left unfinished.

Without a UV-protective hardwood oil, each species will gradually weather to a silver-gray color. This color change does not automatically mean that the wood is rotting.

If you want to preserve the original brown or golden color, periodic cleaning and refinishing will be necessary.

The exact schedule depends on:

• Sun exposure
• Rainfall
• Deck orientation
• Foot traffic
• Product used
• Desired appearance

A fully exposed deck may lose its fresh oiled appearance faster than a covered porch.

Basic maintenance normally includes:

• Removing leaves and standing debris
• Cleaning dirt before it becomes deeply embedded
• Keeping gaps and drainage paths open
• Checking for loose fasteners
• Inspecting the frame and flashing
• Applying a compatible penetrating oil when needed

Avoid applying a thick film-forming finish unless it is specifically approved for dense tropical decking. A coating that cannot penetrate properly may peel or create uneven patches.

Maintenance winner: Tie

All three require similar work if you want to preserve their original color. If you accept natural silver-gray weathering, maintenance can be relatively simple.

Ipe vs Cumaru vs Garapa Cost

Ipe is normally the most expensive option.

Cumaru usually costs less than Ipe while offering similar hardness and decay resistance. This is why it is often described as an Ipe alternative.

Garapa is commonly the least expensive of the three. It can make tropical hardwood decking possible for a homeowner who cannot justify the price of Ipe.

General price ranking

1. Ipe: Highest cost
2. Cumaru: Mid-range
3. Garapa: Lowest cost

Actual prices change with:

• Board width and thickness
• Board length
• Grade
• Air-dried or kiln-dried condition
• Grooved or square-edge profile
• Shipping distance
• Local availability
• Import conditions
• Certification and documented origin

Long boards often cost more and may be harder to source. They can also increase waste if the deck design does not use those lengths efficiently.

Compare the complete installed cost, not just the price per linear foot. Ipe or Cumaru may require more labor, more drill bits, better blades, and additional handling time.

Value winner: Cumaru

Cumaru offers much of Ipe’s performance at a potentially lower material price.

Which Is Best Around a Pool?

Garapa is attractive around pools because its light golden color creates a bright appearance. A lighter board may also absorb less heat than a dark brown board in the same sunlight.

Ipe and Cumaru offer better resistance to dents and heavy foot traffic. They may be preferred for busy pool areas, hotels, or shared outdoor spaces.

However, species alone does not determine slip resistance. Surface texture, board direction, maintenance, algae, oils, and standing water all affect traction.

For any pool deck:

• Choose boards with a suitable surface texture.
• Keep the deck clean.
• Provide drainage.
• Avoid allowing algae to build up.
• Test finished samples when wet.
• Follow pool barrier and electrical requirements.

Pool-deck winner: Garapa for color and potential heat comfort

Ipe or Cumaru may be better where maximum wear resistance is the priority.

Are Ipe, Cumaru, and Garapa Fire-Resistant?

Dense hardwoods can perform better in fire tests than many softer woods. However, fire ratings are specific to the exact species, board profile, thickness, installation, and tested assembly.

Do not assume that every Ipe, Cumaru, or Garapa product automatically carries a Class A rating.

If your home is in a wildfire-prone area, request current test documentation for the exact product being supplied. Confirm whether it meets your local Wildland-Urban Interface rules.

Also remember that fire-resistant does not mean fireproof. Hot embers, grills, fire pits, and outdoor heaters can still burn or discolor hardwood decking.

Follow the appliance manufacturer’s clearance instructions and local fire regulations.

Which Wood Is the Most Sustainable Choice?

Sustainability requires more attention when buying tropical hardwood.

Ipe sold under the Handroanthus name and Cumaru from the Dipteryx genus are included in CITES Appendix II controls. This does not mean their trade is completely prohibited. It means international trade requires additional documentation intended to prevent harvesting from threatening wild populations.

Garapa is not currently listed in the CITES Appendices according to The Wood Database. However, a species not being listed does not automatically prove that every board was responsibly harvested.

Ask the supplier for:

• The scientific species name
• Country of origin
• Legal harvest documentation
• Chain-of-custody information
• FSC certification when available
• CITES documents where required
• Details about the importer and mill

Avoid judging sustainability from a vague claim such as “eco-friendly wood.” Look for traceable documentation that applies to the actual shipment.

Pros and Cons of Ipe Decking

Pros

• Highest overall durability
• Excellent decay resistance
• Strong insect resistance
• Very hard to dent
• Premium dark appearance
• Good outdoor weathering
• Suitable for heavy foot traffic
• Can provide decades of service

Cons

• Usually the most expensive
• Extremely heavy and hard
• Difficult to cut and drill
• Can quickly dull tools
• Requires predrilling
• Dark boards can become hot
• Legal and responsible sourcing needs careful checking
• Dust may irritate the skin, eyes, and respiratory system

Pros and Cons of Cumaru Decking

Pros

• Almost as hard as Ipe
• Very good decay resistance
• Strong outdoor performance
• Rich golden and reddish colors
• Often more affordable than Ipe
• Good resistance to dents and wear
• Long potential service life
• Excellent overall value

Cons

• Wide color variation
• Very heavy
• Difficult to machine
• Interlocked grain may cause tear-out
• Silica can dull cutting tools
• Predrilling is necessary
• Darker boards can become hot
• Responsible sourcing and trade documents must be checked

Pros and Cons of Garapa Decking

Pros

• Attractive golden color
• More affordable than Ipe in many markets
• Lighter than Ipe and Cumaru
• Easier to cut and finish
• Good decay resistance
• Suitable for residential decks
• Light color works well around pools
• Can provide decades of service when properly installed

Cons

• Not as hard as Ipe or Cumaru
• More likely to show dents and wear
• Lower insect resistance
• Shorter expected lifespan
• Color will weather to gray without UV protection
• Availability may be limited
• Still requires correct hardwood installation methods

Which Hardwood Should You Choose?

Choose Ipe if:

• You want the longest-lasting option.
• Maximum resistance to wear is important.
• You prefer dark, premium-looking decking.
• Your budget can cover higher material and labor costs.
• You have access to an installer experienced with Ipe.
• The supplier can provide clear sourcing documents.

Choose Cumaru if:

• You want performance close to Ipe.
• You want better value for your budget.
• You like warm red, brown, and golden color variation.
• You need a very hard and durable deck surface.
• You do not mind sorting or blending boards during installation.

Choose Garapa if:

• You prefer a light golden deck.
• You want a lower-cost tropical hardwood.
• Easier installation is important.
• The deck will have normal residential use.
• You are comfortable with a shorter lifespan than Ipe.
• You want a potentially cooler-looking surface around a pool or sunny yard.

Final Verdict: Ipe, Cumaru, or Garapa?

Ipe is the best hardwood for maximum durability. It is extremely hard, naturally decay-resistant, and capable of providing a very long service life. Its premium price and difficult installation are the main drawbacks.

Cumaru is the best overall value. It comes remarkably close to Ipe in hardness and durability but may cost less. Its wider color variation is either a benefit or a disadvantage, depending on the look you want.

Garapa is the best affordable light-colored option. It is easier to handle and install, but it does not match the hardness, insect resistance, or expected lifespan of Ipe and Cumaru.

For most homeowners comparing performance with price, Cumaru is likely to be the smartest middle choice.

Before purchasing, ask for samples from the actual product grade. Place them outside, wet them, and view them in both sun and shade. Check the moisture condition, board profile, available lengths, sourcing documents, and installation requirements.

Finally, follow the supplier’s installation instructions and check local building, fire, and permit requirements. Even the best hardwood can fail early when it is installed over poor framing or without correct spacing, ventilation, flashing, and fasteners.

Frequently Asked Questions

Is Cumaru as good as Ipe?

Cumaru comes close to Ipe in hardness, strength, and decay resistance. Ipe generally has a stronger reputation for long-term exterior performance, but Cumaru can offer better value when purchased from a reliable supplier.

Is Garapa better than Ipe?

Garapa is not as hard or decay-resistant as Ipe. However, it is lighter, easier to work with, and normally more affordable. It may be the better choice if you want golden decking rather than a dark brown surface.

Which is cheaper: Ipe, Cumaru, or Garapa?

Garapa is normally the least expensive, followed by Cumaru. Ipe is usually the most expensive. Prices vary by grade, size, board length, supplier, and delivery location.

Does Cumaru turn gray?

Yes. Cumaru will gradually weather to a silver-gray color when it is exposed to sunlight without a UV-protective finish. Ipe and Garapa will do the same.

Does Ipe decking need to be sealed?

Ipe does not need a coating simply to remain naturally decay-resistant. However, freshly cut ends should normally receive an approved end sealer. A penetrating hardwood oil can also be applied when you want to slow color fading.

Can I pressure-wash tropical hardwood decking?

It may be possible, but excessive pressure or incorrect technique can damage the surface. Begin with the cleaning method recommended by the supplier. If pressure washing is allowed, use a wide fan tip, suitable pressure, and adequate distance from the boards.

Do Ipe, Cumaru, and Garapa need predrilling?

Predrilling is generally required for Ipe and Cumaru because they are extremely dense. It is also sensible near the ends of Garapa boards. Follow the fastener and decking supplier’s instructions for hole size and placement.

Can hidden fasteners be used?

Yes, if you purchase properly grooved boards and use a fastening system approved for that species and board profile. Hidden fasteners do not remove the need for correct joist spacing, ventilation, board gaps, and additional support around borders.

Can these hardwoods be installed over an old deck frame?

Only if the existing frame is structurally sound and suitable for the added dead load. Inspect joists, beams, posts, ledger connections, flashing, and footings before installing new hardwood decking.

Which hardwood is best for a humid climate?

Ipe generally offers the strongest combination of decay and insect resistance. Cumaru is also a strong option. Garapa can perform well, but its lower insect resistance deserves attention in humid, termite-prone locations.

Sources

1. The Wood Database – Ipe
2. The Wood Database – Cumaru
3. The Wood Database – Garapa
4. Tropical Forest Products – Hardwood Decking Species Data
5. AdvantageLumber – Ipe vs Cumaru Comparison
6. AdvantageLumber – Exterior Decking Materials
7. Forest Stewardship Council – Responsible Forest Certification