ACRE vs IPE vs Hardwood Decking: An Honest Comparison

If you are weighing IPE against other hardwoods for a new deck, you have probably also wondered whether there is an IPE decking alternative that skips the annual oiling and the rainforest sourcing without giving up the look of real wood. 

This is a straight comparison of three options: IPE, the broader family of tropical and temperate hardwoods, and ACRE, a rice-hull composite that most “IPE vs composite” guides leave out. We will cover hardness, lifespan, maintenance, heat, cost, and sustainability, and we will say plainly where IPE and hardwoods still win.

Meet the Three Contenders

Here is each option on its own terms, including where IPE and tropical hardwoods genuinely win.

IPE (pronounced “ee-pay”) is a dense tropical hardwood from Central and South America, often sold under the name Brazilian walnut. It is one of the hardest decking woods on the market, with a Janka hardness around 3,490 lbf according to The Wood Database, roughly two and a half to three times harder than red oak. 

Specific IPE decking products have earned Class A flame spread ratings in supplier ASTM E84 fire tests, and the wood resists rot and insects without chemical treatment. It is also the most expensive mainstream decking wood, and the one with the heaviest sustainability questions, which we cover below.

When people say “hardwood decking,” IPE wood is usually the headline, but it is not the only option. Cumaru (Brazilian teak) is nearly as hard and costs less. Garapa is a lighter, golden, budget-friendly choice. Tigerwood brings dramatic streaked grain. Massaranduba, mahogany, teak, and the softer temperate woods like cedar and redwood round out the category. They share IPE’s natural-wood appeal and most of its maintenance demands.

ACRE is the third contender, and the one these guides usually skip. Made by Modern Mill, ACRE is a rice-hull composite: a wood-replacement material extruded from upcycled rice hulls, a byproduct of food production, with no trees and no wood fiber in it. It is tree-free, recyclable, and made in the USA.

Unlike wood-plastic composite, it can be cut, routed, sanded, and shaped like lumber, and it takes paint or stain without a primer. It is splinter-free by design. If you want the short version of why we built a wood alternative at all, this is it: the look and workability of wood without the parts of wood that fail.

ACRE vs IPE vs Hardwood Decking, Side by Side

Here is how the three stack up on the factors that actually drive the decision. The figures below are typical ranges. The hardest tropical hardwoods lead on raw hardness. The sections below explain what each one means in practice so you can weigh what matters for your project.

Durability and Hardness

On raw hardness, the top tropical hardwoods win, and it is not close against composite. That 3,490 lbf Janka rating means IPE shrugs off dropped tools, dog claws, and decades of foot traffic, with cumaru close behind at 3,330 lbf and a handful of other dense species further down the scale. If your only metric is how hard the surface is, a tropical hardwood is the answer. ACRE is engineered for a different priority: standing up to the ways decks actually fail. 

Hardness is not the same as durability in the field, though. The way most decks fail is not denting. It is rot at the joists, splintering as the surface ages, and cupping when the underside stays wetter than the top. 

Independent testing backs this up: Consumer Reports’ multi-year decking tests found that real wood resists flexing well but that surface wear, slipping, and weathering separate the good materials from the bad regardless of species.

This is where ACRE was engineered to behave differently. It resists water, rot, and insects, it will not splinter, and it is suitable for ground contact without sealing. Tropical hardwoods can match that resistance, but only with correct installation: 10 to 14 days of acclimation, careful spacing, and enough airflow underneath. Skip those steps and even IPE will cup.

Synthetic boards trade hardness for low maintenance, a tradeoff we cover in our look at composite versus wood decking. Composite resists the elements but dents and scratches more easily than any hardwood here.

Maintenance: What Each One Really Takes

IPE and the other tropical hardwoods are often sold as “low maintenance,” and structurally they are. Cosmetically they are not. Left alone, IPE weathers from rich brown to a silver-gray patina within months. Plenty of owners like the gray. If you want to keep the brown, you are signing up for an annual job: clean, brighten, and re-oil, with a drying window in between. In hot, high-UV regions some owners find they re-coat more than once a year to hold the color. None of that is hard, but it is real time every season, and it is the single most common source of hardwood-decking regret.

Composite and PVC flip the problem. There is no oiling, just periodic washing, which is genuinely less work. The catch is that low maintenance is not no maintenance, and the surface cannot be repaired. A deep scratch, a dropped coal, or a grease stain that sets is permanent, and the fix is replacing the whole board, which rarely matches the faded boards around it.

ACRE aims for the middle: the low upkeep of a synthetic with the repairability of wood. There is no annual oiling cycle to keep its look, and because it behaves like lumber, a scuff can be sanded out and the board refinished rather than swapped. It still needs basic cleaning. For a fuller breakdown of how it holds up against a treated-wood alternative, see how ACRE compares to thermally modified wood.

In our experience, maintenance is the factor buyers most often underestimate. People choose a board for how it looks on install day and forget they are also choosing a chore they will repeat, or not repeat, for the next 20 years.

Looks, Heat, and Comfort Underfoot

On pure looks, freshly oiled IPE is hard to beat. The deep chocolate-brown color and tight, even grain read as premium in a way that is genuinely difficult to fake, and that prestige is part of what you pay for.

The honest follow-up is that the look does not hold itself. IPE fades without oil, and composite has its own version of the problem: many composite decking boards lose color over a few seasons, and although the better capped lines now hold color longer, a faded board still stands out the moment one gets swapped. 

ACRE uses a proprietary grain that mimics real wood, ships in its natural color, and takes stain in IPE-like tones without a primer. Its color fades gradually under years of UV, and an optional clear UV-resistant coat slows that to keep it looking newer for longer, with no oil cycle to keep up. Up close it reads as its own material rather than old-growth IPE, and it sidesteps the annual oiling and the fake-plastic look that send some buyers back to wood.

Then there is heat, which matters more than people expect. Every deck gets warm in direct sun, but synthetic composite traps and holds the most, enough that dark boards can be too hot for bare feet at midday in a Southern summer. Natural hardwoods like IPE stay the coolest of this group, a real point in their favor for a poolside or full-sun deck. ACRE lands between the two. Because it is splinter-free and slip-resistant, it suits the wet, barefoot, high-traffic spots, around pools and on busy family decks, where a slick or splintering surface is a safety issue, not just a cosmetic one.

Cost: Upfront Price vs Total Project Cost

Material price is the number everyone compares, and on that basis the order runs roughly like this. The per-square-foot figures below are typical market ranges for materials only; independent 2026 deck-cost data shows installed prices run far higher once labor is added.

IPE is so dense it dulls saw blades fast enough that carbide tooling is standard, every fastener hole has to be pre-drilled, and the boards are heavy enough that crews slow down. A hardwood deck can take noticeably longer to build than the same deck in composite or ACRE, and many builders charge accordingly or decline the job. That labor gap can rival the material cost, so compare total installed price, not the board’s sticker. ACRE, by contrast, works with standard woodworking tools, no pre-drilling ritual required.

The second is the substructure trap, which almost no seller mentions. A premium deck surface commonly cited at 40 to 75 years often sits on a pressure-treated pine frame that may rot in 15 to 20. When the frame fails, the whole deck comes apart, IPE boards and all, long before those boards were spent. If you are buying a decades-long surface, budget for a frame that lasts as long, whether that means steel framing, rot-resistant sleepers, or careful flashing and drainage. The board is only as permanent as what holds it up.

Sustainability: The Honest Version

This is the topic where bias runs deepest. IPE sellers call their wood a renewable resource that gives standing rainforest economic value. Composite makers call IPE a driver of rainforest deforestation and tout boards made from recycled plastic. Both are partly right.

Here is what is verifiable. IPE and several related “trumpet tree” species were added to CITES Appendix II, the international treaty governing trade in threatened species, at the 2022 conference, with the listing taking full effect in November 2024, when Brazil began requiring CITES export permits for newly harvested IPE.

One of the primary IPE species is endangered on the IUCN Red List. That does not make buying IPE wrong, but it does mean responsible sourcing is no longer optional. If you choose IPE or any tropical hardwood, insist on FSC-certified, legally documented stock, and expect tighter supply and higher prices as the rules bite.

Composite is not a clean escape. Premium boards can contain a high share of recycled content, which is real, but they are petroleum-based and blend wood and plastic into a hybrid that is difficult to recycle at the end of its life. It keeps some plastic out of a landfill now and usually becomes landfill later.

ACRE was sustainably engineered to site in a new space. It is made from upcycled rice hulls, an agricultural byproduct, so it is genuinely tree-free, it is recyclable, and it is manufactured in the USA rather than shipped from a rainforest. You can read how ACRE is made for the full picture. 

Which Decking Should You Choose?

There is no universally best decking material, only the right match for your priorities. Use these as quick decision rules:

• Choose IPE or a tropical hardwood if maximum hardness and the look of genuine old-growth wood matter most, you will actually keep up the annual oiling, and you can source it FSC-certified with a clear conscience about the price and supply.
• Choose cumaru or garapa if you want most of IPE’s performance and natural look for less money, and you accept the same maintenance.
• Choose composite or PVC if hands-off upkeep is the whole point and you can live with a board that gets hot, cannot be refinished, and reads as synthetic up close.
• Choose ACRE if you want a natural wood look and the workability of lumber, but with low maintenance, a splinter-free and slip-resistant surface, and tree-free sourcing.

And a few honest “walk away” signals: skip IPE if you know you will not oil it, because you are paying a premium for a finish you will let fade. Skip composite for a full-sun, barefoot deck in a hot climate. And whatever surface you pick, do not put it on a frame that will rot first.

If your shortlist keeps circling back to wanting wood’s warmth without wood’s chores, that gap is the reason ACRE exists. It is a different answer to the same question, built for low-maintenance, splinter-free, tree-free living rather than maximum surface hardness.

The decking debate is usually framed as IPE versus composite, natural versus synthetic. That leaves out a third path: a tree-free, low-maintenance, splinter-free board that works like wood and looks like it too. IPE will still be the right call for buyers who want the hardest, most prestigious natural surface and will maintain it. But if you have been talking yourself into a maintenance routine just to get the look you want, it is worth seeing the alternative in person before you commit.

Order a sample of ACRE decking and put it next to an IPE board and a composite board on your own deck. Modern Mill makes ACRE in Mississippi as a wood replacement for decking, siding, and trim, and the easiest way to judge whether it belongs on your shortlist is to hold it, scratch it, and see the grain in your own light. You can request samples here.

Frequently Asked Questions

What are the disadvantages of IPE decking?

The big three are cost, maintenance, and sourcing. IPE is among the most expensive decking woods and the hardest to install: the boards run about 65 pounds per cubic foot, and every fastener hole must be pre-drilled. It needs annual oiling to keep its color or it weathers to gray. And as a CITES-listed rainforest species, it carries supply limits and sustainability questions that other materials do not.

What is the downside of composite decking?

Composite stays low-maintenance but cannot be repaired: unlike wood or ACRE, the surface cannot be sanded back, so a deep scratch or set-in stain means swapping the board, and a new board rarely matches its sun-faded neighbors. It also traps more heat than wood in direct sun and, to some eyes, looks synthetic up close.

What wood is closest to IPE?

Cumaru, often sold as Brazilian teak, is the closest match. The Wood Database puts cumaru at 3,330 lbf on the Janka scale, less than five percent below IPE’s 3,490, and it shares the same dense, rot-resistant performance at a lower price. Once installed and oiled, the two are hard to tell apart.

Is IPE or composite decking more sustainable?

Neither is clearly the winner. IPE is a natural, biodegradable material but is harvested from threatened rainforest species now regulated under CITES, and newly harvested Brazilian IPE has needed an export permit since the listing took full effect in November 2024. Composite reuses plastic but is petroleum-based and hard to recycle later. A tree-free option like rice-hull composite helps to avoid both problems.

What is the best low-maintenance decking that still looks like wood?

This is exactly the gap rice-hull composite targets: a natural wood grain without the annual oiling of hardwood or the plastic look and feel of synthetic boards. Capped composite is the mainstream low-maintenance pick, but it cannot be sanded or refinished the way wood and ACRE can. If you want to judge the difference in person, get an ACRE.

Does ACRE decking get hot, splinter, or fade?

ACRE is splinter-free and slip-resistant by design. Its color fades gradually under years of UV, and an optional clear UV-resistant coat slows that to keep it looking newer for longer. Like every decking material, it warms in direct sun, but it does not trap heat the way synthetic composite does, and lighter finishes stay more comfortable underfoot.

Sources

https://www.wood-database.com/ipe/ – The Wood Database: Ipe – Janka hardness, density, decay resistance, and conservation status

https://www.wood-database.com/cumaru/ – The Wood Database: Cumaru – Janka hardness and CITES Appendix II status

https://www.wood-database.com/garapa/ – The Wood Database: Garapa – Janka hardness

https://cites.org/eng/app/appendices.php – CITES Appendices – Appendix II listing for Ipe and related species

https://fsc.org/en – Forest Stewardship Council – responsible forestry certification

https://www.consumerreports.org/home-garden/decking/best-decking-materials-from-consumer-reports-tests-a6751297873/ – Consumer Reports: Best Decking of 2026, Tested by Experts – independent multi-year decking tests

https://www.iucnredlist.org/ – IUCN Red List – conservation status of tropical hardwood species

https://www.nerdwallet.com/home-ownership/home-improvement/learn/cost-to-build-deck – NerdWallet: The Cost to Build a Deck in 2026 – independent decking material and installed-cost data