Whether you are planning a kitchen countertop, a boardroom table, or terrace furniture, the first question is always the same: Which wood should I choose?
Oak, walnut, and iroko are the three most sought-after hardwoods in both Turkish and international markets — each with distinct strengths. In this guide, we compare all three with hard technical data and help you match the right species to your specific project.
Meet the Three Species
Oak — The Durability Champion
Oak is one of the most valued hardwoods in European and Turkish forestry. With a Janka hardness rating of 1360 lbf, it delivers unmatched performance on kitchen countertops, stair treads, and high-traffic surfaces.
Its color range — from pale gold to deep brown — and prominent grain patterns make oak versatile for both rustic and contemporary designs. Natural tannin content gives it above-average moisture resistance among European hardwoods.
Key properties:
- Janka hardness: 1360 lbf (hardest in this comparison)
- Density: 720–760 kg/m³
- Natural tannin content for added moisture resistance
- Food-safe surface when finished with natural oils
- Excellent stain and color absorption
Walnut — Aesthetics and Prestige
Walnut is the world's most prestigious furniture wood, prized for its deep chocolate-brown tones and unique grain patterns. It is the first choice for executive desks, luxury dining tables, and decorative wall panels.
While its 1010 lbf Janka hardness is lower than oak, walnut comfortably handles medium-to-heavy daily use. Its real strength is visual: every panel carries a one-of-a-kind pattern that deepens and warms with age.
Key properties:
- Janka hardness: 1010 lbf
- Density: 640–680 kg/m³
- Rich chocolate-brown tones that deepen over time
- Every panel has a unique grain signature
- Silky, warm surface texture when oiled
- #1 choice for luxury furniture and interior design
Iroko — The Outdoor Queen
Iroko is a tropical hardwood from West Africa and one of the most durable species for outdoor use. Its natural oil and silica content make it virtually immune to decay, termites, and fungal growth.
With a Janka hardness of 1260 lbf, iroko matches oak in mechanical strength while far surpassing it in water resistance. Widely used as the economical alternative to teak for outdoor decking, terrace furniture, and yacht decks.
Key properties:
- Janka hardness: 1260 lbf
- Density: 660–690 kg/m³
- Natural oils provide immunity to decay and termites
- 30+ year lifespan outdoors with regular maintenance
- 30-40% more economical than teak
- High resistance to water, saltwater, and humidity
Technical Comparison Table
| Property | Oak | Walnut | Iroko |
|---|---|---|---|
| Janka Hardness | 1360 lbf | 1010 lbf | 1260 lbf |
| Density | 720–760 kg/m³ | 640–680 kg/m³ | 660–690 kg/m³ |
| Water Resistance | Medium-Good | Medium | Very Good |
| UV Resistance | Medium | Low-Medium | Good |
| Outdoor Suitability | Sheltered only | Indoor only | Full outdoor |
| Maintenance Frequency | Oil once/year | Oil once/year | Oil once/year |
| Aesthetic Character | Prominent grain, light tones | Dark, unique patterns | Golden, uniform |
| Price Segment | Domestic affordable → Import premium | Domestic affordable → American premium | Imported mid-upper |
| Indoor Lifespan | 50+ years | 50+ years | 50+ years |
| Outdoor Lifespan | 15-20 years (sheltered) | Not recommended | 30+ years |
Choosing by Application
Kitchen Countertops
Winner Oak
Kitchen countertops face knife impacts, hot pots, and water splashes daily. Oak's 1360 lbf hardness delivers the best resistance under these conditions. When treated with natural oils like Rubio Monocoat, it becomes water-resistant and food-safe.
Walnut can be used for kitchen countertops but its lower hardness makes it more prone to knife marks. Iroko's natural oil content is suitable for kitchens, but oak's aesthetic versatility makes it the more popular indoor choice.
Dining Tables and Conference Tables
Winner: Walnut
For dining and executive tables, aesthetics and prestige matter more than raw hardness. Walnut's deep, warm tones and unique grain patterns define a room's atmosphere. Live-edge walnut table tops are particularly striking.
Oak also excels in table tops — especially for rustic and modern-industrial designs. Iroko is the ideal choice for outdoor dining tables (restaurant terraces, for example).
Outdoor Furniture and Decking
Winner: Iroko
For outdoor projects, iroko is the definitive choice (with teak at the premium end). Oak can be used in sheltered outdoor areas (covered terraces) but cannot withstand direct rain and sun exposure long-term. Walnut is not suitable for outdoor use under any circumstances.
Iroko's natural oils make it durable for decades in poolside decking, garden furniture, and terrace flooring. Annual oiling preserves its golden color; left untreated, it develops a silver-gray patina without losing structural integrity.
Stair Treads
Winner Oak
Stair treads endure hundreds of footsteps daily, plus scratches and abrasion. Oak's 1360 lbf hardness provides the best performance under this intense mechanical stress. Beech is also common for stairs, but oak's aesthetic richness and superior hardness give it the edge.
Walnut stair treads are visually striking but carry higher wear risk in high-traffic commercial areas. In residential settings, walnut treads paired with oak handrails is a popular combination.
Maintenance and Longevity
All three species last decades when maintained with natural oils (Rubio Monocoat, tung oil, teak oil). However, maintenance needs differ:
Oak: Annual oil application is sufficient. Its light color makes stains more visible — regular wiping is important in kitchens. Darkens slightly under direct sunlight over time.
Walnut: Annual oiling recommended. Its dark color hides stains but prolonged UV exposure can lighten the tone. Curtains or UV-filtered glass are advisable for sun-facing rooms.
Iroko: Outdoors, oil 1-2 times per year with teak or iroko oil. Without oiling, it develops a silver-gray patina — a look some designers intentionally seek. Structural durability is maintained 20+ years even without surface treatment.
Price-Performance Assessment
In B2B wholesale, pricing varies significantly by species, origin, quality grade (A/B or B/C), thickness, and order volume. A simple "cheapest to most expensive" ranking can be misleading because each species has a wide price range within itself:
Oak: Price differs greatly by origin. Domestic Turkish oak is the most economical option. European oak (Croatia, Romania, Norway, Sweden) sits in the mid-upper segment. American white oak commands premium pricing. Within the same species, origin alone can shift the price by 2-3x.
Walnut: Has the widest price band of all three. Domestic Turkish walnut is relatively economical; European walnut is mid-range; American black walnut is among the most expensive solid wood panel materials available. Origin selection should match the project budget.
Iroko: As an imported tropical hardwood, pricing depends on exchange rates and supply chain conditions. Origin variation is less pronounced than oak or walnut, but quality grade (A/B vs B/C) and thickness directly impact price. When long-term outdoor durability is considered, the cost-performance ratio is excellent.
Bottom line: When comparing prices, look at species and origin and grade together — not species alone. Request origin-specific quotes from your supplier to find the best value for your project.
Summary: Which Wood for Which Project?
| Proje Tipi | 1. Tercih | 2. Tercih | Kaçınılacak |
|---|---|---|---|
| Kitchen countertop | Oak | Beech | Walnut |
| Dining table | Walnut | Oak | — |
| Executive desk | Walnut | Sapele | — |
| Outdoor decking | Iroko | Teak | Walnut, Pine |
| Garden furniture | Iroko | Teak | Oak, Walnut |
| Merdiven basamağı | Oak | Beech | Pine, Spruce |
| Duvar paneli / lambri | Oak | Walnut | Iroko |
| Banyo tezgahı | Iroko | Teak | Walnut |
| Restoran terası masası | Iroko | Thermowood | Oak, Walnut |
Frequently Asked Questions
Is oak or walnut better for kitchen countertops?
Mutfak tezgahı için meşe daha uygundur. Meşe’nin 1360 lbf Janka sertliği, cevizin 1010 lbf değerinden %35 daha yüksektir. Bu, mutfak ortamındaki bıçak darbeleri, sıcak tencere teması ve günlük aşınmaya karşı çok daha iyi direnç anlamına gelir. Meşe ayrıca doğal tanin içeriği sayesinde suya karşı da güçlü bir koruma sağlar.
How long does iroko last outdoors?
With regular maintenance (oiling 1-2 times per year), iroko lasts over 30 years outdoors. Its natural oils make it virtually immune to decay, termite attacks, and fungal growth. Even without maintenance, it retains structural integrity for 20+ years — only the surface color turns silver-gray.
Which solid wood panel type is most economical?
Among oak, walnut, and iroko, oak is generally the most economical option — particularly in Turkey due to domestic supply advantages. However, the decision should be project-specific: choosing oak for an outdoor project because it is cheaper may lead to replacement costs within 5-10 years. In that case, iroko's higher initial cost is more economical in the long run.
This guide was prepared by the Gavi Wood technical team. For detailed technical support in choosing the right wood species for your project, contact us or request a quote. bizimle iletişime geçin veya hızlı teklif alın.