4 Sustainable Interior Design Materials Worth Knowing
Being sustainable isn't a yes-or-no decision — it's a multitude of choices that all add up to make a difference. Every "eco" material has trade-offs that have to be balanced against each other. The biggest factor in that balance is often location: even the most sustainable material in the world loses a lot of its shine once you factor in shipping it across the globe. The other classic consideration is reduce, reuse, recycle. Working with what you already have — or what's already sitting in your city — is always going to be more sustainable than purchasing new. But when the three R's aren't an option, that's when a sustainable mindset should guide what you buy new. So let's explore some options.
1. Cork
Cork is one of the most regenerative materials on the planet to build with. A single cork tree can be harvested for over 200 years, with harvests happening roughly every 9 years as the bark regrows. During those growing years, the tree actually absorbs more CO2 than an unharvested cork tree does — meaning the harvest cycle itself supports the tree's carbon-capturing ability rather than working against it. One trade-off: cork isn't grown domestically at any real scale, so nearly all of it travels a long way to reach a U.S. project. The upside is that it's lightweight, which keeps its shipping footprint smaller relative to its volume than a lot of denser materials.
Cork's uses in interior design are nearly endless:
-
Flooring — cork planks or tiles, prized for being soft underfoot, naturally insulating (both thermally and acoustically), and hypoallergenic since it naturally resists dust and mold.
-
Wall coverings & acoustic panels — cork's cellular structure (it's mostly trapped air) makes it a natural sound absorber, great for home offices, media rooms, or shared walls.
-
Furniture & accent pieces — cork stools, side tables, and shelving lean into its warm, tactile texture.
-
Countertops & backsplashes — less common but growing, often blended with resins for durability.
-
Bulletin boards, coasters, and small decor — the classic use, and still a low-waste way to use offcuts.
Our Barcelona Chair with a cork fabric made in Portugal.
2. Bamboo
Bamboo is a material like cork in that it's highly regenerative — but it grows even faster. It's technically a grass, not a tree, which is why it can be harvested on a cycle of roughly 5 years, compared to 40-80 years for hardwood. Because bamboo is cut like grass and its root system stays intact, it also helps prevent soil erosion between harvests. It's an incredibly flexible material and shows up in interiors in a lot more forms than most people expect — structural elements, decorative surfaces, and even weather-facing exterior applications.
Common uses of bamboo in interior design:
-
Flooring — the most familiar application, available in strand-woven (very hard-wearing), horizontal, and vertical grain styles.
-
Plywood & paneling — used for cabinetry, wall paneling, and furniture carcasses as an alternative to hardwood plywood.
-
Furniture — chairs, shelving, and tables that lean into bamboo's natural grain and flexibility.
-
Window treatments — bamboo shades and blinds are one of the most common "eco" swaps homeowners make.
-
Structural elements — in some builds, bamboo is used for beams and framing thanks to its high strength-to-weight ratio.
One honest caveat worth knowing: essentially no bamboo flooring or furniture sold in North America is manufactured domestically — it's grown and processed mainly in China and Southeast Asia, so it always carries a long-distance shipping footprint. That said, ocean freight is dramatically more fuel-efficient than trucking, so a bamboo product shipped by container ship can, in some cases, still have a smaller transportation footprint than a domestic hardwood product trucked cross-country. It's a genuinely debated point in the sustainability world rather than a settled one — worth knowing rather than worrying over. When shopping, look for FSC-certified bamboo and low-VOC or formaldehyde-free adhesives to make sure the rest of the supply chain matches the material's promise.
3. Urban Lumber
If cork and bamboo solve for regeneration, urban lumber solves for the other half of the sustainability equation: location. It's hard to beat wood that never had to travel far in the first place.
Urban lumber comes from trees that are already coming down in a city — because of storms, disease, age, or development — rather than being logged from a forest. Historically, almost all of that wood was destined for a landfill or a chipper the moment it hit the ground. Companies built around urban timber, like Birmingham-based Alabama Sawyer, exist to intercept that wood before it's wasted and mill it into furniture instead.
A few things that make urban lumber stand out as a sustainability story:
-
It's local by definition. Alabama Sawyer sources about 90% of its wood from within 50 miles of Birmingham — about as close to zero-shipping-footprint as furniture material gets.
-
It diverts real waste. The studio has milled and kiln-dried more than 60,000 board feet of wood, helping keep 500+ trees out of landfills.
-
It's genuinely diverse. Urban forests aren't planted in single-species rows the way commercial timber often is, so urban lumber comes in an unusually wide range of species — sweet gum, pecan, hackberry, walnut, white oak, cherry, longleaf pine, eastern red cedar, and more than 20 species of oak, in Alabama Sawyer's case.
-
It takes real time and craft. Because trees are roughly 70% water, urban timber has to cure for months (sometimes up to two years) before it's kiln-dried, or it will warp, shrink, or crack. That patience is part of what gives each piece its character.
-
The resource is bigger than people think. America's urban forests cover more than 141 million acres, including about 4 million acres in Alabama alone — a huge, underused supply of material sitting in plain sight.
Urban lumber also solves the "reuse before you buy new" principle from the intro in a unique way: it's new material, but it's material that was already going to exist in your city regardless — you're just keeping it out of the landfill instead of letting it replace a forest tree somewhere else.
4. Wool
Rounding out the list with a material that covers the textile side of a room, not just the hard surfaces: wool. It's one of the oldest materials in interior design and one of the most quietly sustainable, since it's renewable, biodegradable, and — when responsibly raised — produced without heavy chemical processing.
In interiors, wool shows up as:
-
Rugs — including hand-loomed wool rugs, which support traditional weaving communities as well as sustainability goals.
-
Carpet — wool carpet naturally resists flame without chemical treatment and holds up well under regular foot traffic.
-
Upholstery — a durable, natural alternative to synthetic fabric blends.
-
Throws and soft furnishings — an easy, lower-commitment way to bring a natural fiber into a room.
Beyond its renewability, wool has a functional sustainability bonus: its fibers naturally absorb and trap VOCs, humidity, and airborne particulates, which makes it a genuine contributor to indoor air quality — not just an aesthetic choice. Pair it with a reclaimed wood table or urban timber shelving, and you've got a room built on two very different but equally sustainable material stories.
We use wool felt on our wood and felt bench and storage.
What Does FSC Certified Mean?
You'll see the FSC label mentioned throughout this list, so it's worth a quick explainer. FSC stands for Forest Stewardship Council — an independent nonprofit that certifies wood and forest-derived products come from responsibly managed forests. Certification covers more than just "don't clear-cut the forest" — it also looks at biodiversity, water resources, and the rights of local and Indigenous communities.
Three labels to recognize when you're shopping:
-
FSC 100% — all material comes from FSC-certified forests.
-
FSC Mix — a blend of certified, recycled, and "controlled wood" sources.
-
FSC Recycled — made entirely from reclaimed or reused material.
The certification also tracks material through the entire chain of custody — forest, mill, manufacturer, final product — not just the harvest itself. That's why it's one of the fastest, most reliable ways to shop sustainably without having to independently research every supplier's practices yourself. It applies to more than just solid wood, too — cork and bamboo products can (and should) carry FSC certification as well.
How to Find Local Materials
The single biggest sustainability lever most people overlook is proximity. A "sustainable" material that crossed an ocean will almost always have a bigger footprint than a less-flashy material sourced down the road. A few ways to find what's local to you:
-
Search "architectural salvage" for your city, not just "reclaimed wood store." Salvage yards often carry doors, brick, and fixtures that a furniture-focused search won't surface. In Birmingham, that includes places like Evolutia, which repurposes historic building materials into flooring and beams, and Nomad Homestead Supply, which accepts and resells donated construction materials.
-
Ask local tree services and arborists what happens to the wood they remove. Most urban timber ends up in a chipper or landfill simply because no one asked — that's the exact gap companies like Alabama Sawyer are built to fill.
-
Check your local Habitat for Humanity ReStore for donated building materials at a fraction of new cost.
-
When buying new, buy close. A domestically milled, FSC-certified hardwood from your own region will almost always out-perform an imported "eco" material on total footprint, even before you factor in supporting a local business.
Closing Thought
Sustainability in interior design was never going to be one perfect material — it's cork's regeneration, bamboo's speed, wool's biodegradability, and urban lumber's proximity, all balanced against each other and against what's already sitting in your own city. The most sustainable choice you'll make in any room is usually the one that traveled the least distance to get there.
Explore Alabama Sawyer's urban wood furniture collection, or reach out about our Tree Concierge Service to find out what's growing — or falling — near you.