Understanding teak grade is one of the most important steps buyers can take before purchasing teak furniture. The term appears frequently in furniture catalogs and supplier descriptions, yet many buyers do not understand what each grade actually means, how grades are determined, or why the difference between grades matters for outdoor furniture performance.
This guide explains the teak grading system, what distinguishes each grade from the others, which grade suits which application, and why FSC-certified teak from Indonesia’s Perhutani plantations represents the benchmark for quality outdoor furniture production.
Why Teak Grading Matters
Teak is not a uniform material. Two planks cut from the same species, Tectona grandis, can perform very differently depending on which part of the tree they came from, how old the tree was, and how the timber was processed after felling.
The heartwood at the centre of a mature teak tree contains the highest concentration of natural oils and silica that give teak its moisture resistance, insect resistance, and structural durability. Sapwood, the younger outer wood closer to the bark, contains significantly less of these natural compounds. Consequently, sapwood performs far less well outdoors than heartwood, even though both come from the same species and the same tree.
Teak grading systems exist to communicate these quality differences to buyers. However, there is no single universal teak grading standard. Different suppliers, exporters, and markets use different grading terminology, which creates confusion. This guide explains the most widely used grading framework and what each level means in practical terms.
The Three Main Teak Grades
Grade A Teak
Grade A teak comes from the heartwood of mature teak trees, specifically from the inner core where the concentration of natural oils and silica is highest. This is the part of the tree that produces the most durable, most moisture-resistant, and most visually consistent timber.
Visually, Grade A teak is rich in colour, ranging from warm golden-honey to deep amber tones. The grain is tight and even. There are minimal knots, no sapwood (the pale cream-coloured wood visible at the edges of lower-grade planks), and no fissures or surface cracks. The surface is smooth and consistent across the full plank length.
In terms of performance, Grade A teak provides the full set of properties that make teak exceptional for outdoor use. The natural oil content is at its highest. Moisture resistance is at its best. Structural density is greatest. Insect resistance is strongest. Furthermore, Grade A teak weathers to a consistent silver-grey patina over time without the blotchy or uneven greying that lower-grade material can show.
The Grade A teak is the correct specification for outdoor furniture that faces direct weather exposure, particularly for pieces used in coastal environments, beside pools, or in consistently tropical climates like Bali’s.
Grade B Teak
Grade B teak comes from areas closer to the outer heartwood, where oil content is lower than in the pure inner core. It may include some mineral streaks, minor knots, and slight colour variation across the plank. Some Grade B teak includes very small amounts of sapwood at the edges, which suppliers either leave or remove depending on the final application.
Visually, Grade B teak shows more variation than Grade A. The colour tone is less uniform. Grain patterns may be slightly less tight. Minor natural markings appear more frequently.
In terms of performance, Grade B teak still performs well outdoors when it comes from a quality teak species and has been properly kiln-dried. However, sections of lower oil content within Grade B planks may weather less evenly than consistent Grade A material. Over time, colour variation between planks becomes more noticeable in furniture made from Grade B teak.
Grade B teak suits covered terraces, semi-outdoor settings, and indoor-outdoor spaces where the furniture faces less intense direct weather exposure than fully open outdoor settings. Additionally, some furniture manufacturers use Grade B teak for structural components that are not visually prominent, reserving Grade A material for visible surfaces.
Grade C Teak
Grade C teak comes from the outermost sections of the tree, including significant sapwood content and material from younger, smaller trees. The natural oil and silica content is lowest in this grade. It shows high colour variation, frequent knots, significant grain irregularity, and visible sapwood in pale cream or white tones alongside the darker heartwood.
In terms of outdoor performance, Grade C teak is not suitable for direct weather exposure without significant treatment. The low oil content makes it susceptible to moisture penetration, which leads to warping, cracking, and surface checking. The sapwood sections are particularly vulnerable to mould, staining, and insect activity in outdoor conditions.
Grade C teak suits indoor furniture in dry, climate-controlled environments where its natural oil content is less critical. It also appears in furniture with painted finishes that cover the colour variation and protect the lower-quality surface from exposure.
For outdoor use in any tropical or coastal climate, Grade C teak is not the appropriate specification, regardless of price.
Old Growth Teak vs Plantation Teak
Beyond the A, B, C grading framework, buyers often encounter a distinction between old growth teak and plantation teak. This distinction carries significant implications for both performance and sustainability.
Old Growth Teak
Old growth teak comes from trees that have grown for 60 to 100 years or more in natural forest environments. These trees develop dense, stable heartwood with extremely high oil content accumulated over their long growth period. Old growth teak represents the absolute peak of teak timber performance.
However, old growth teak is an increasingly scarce resource because most natural teak forests are now protected, logging quotas are tightly controlled, and old growth timber is heavily regulated in international trade. Furthermore, sourcing old growth teak raises significant environmental and legal concerns. Import of timber from unverified or illegally logged sources violates the US Lacey Act, the EU Timber Regulation, and Australia’s Illegal Logging Prohibition Act.
Plantation Teak
Plantation teak grows in managed, sustainably farmed environments over a growth cycle of typically 25 to 40 years. Indonesia’s Perhutani, the government-owned forestry enterprise, manages the world’s most established and certified teak plantation system. Perhutani’s plantations supply FSC-certified teak to Indonesia’s furniture export industry.
Plantation teak from mature Perhutani trees is Grade A quality in practice. The trees grow under managed conditions that optimise timber quality, and harvesting occurs at an age where the heartwood is fully developed and oil-rich. The FSC certification confirms that the timber is legally and sustainably sourced, which satisfies timber import compliance requirements in all major markets.
For buyers who want Grade A teak performance with full legal compliance for international import, FSC-certified plantation teak from Perhutani is the correct specification. It is the same material that Indonesia’s leading outdoor furniture exporters use for their international hospitality and retail projects.
How to Identify Teak Grade Visually
Buyers who visit showrooms or inspect timber before purchasing can use visual cues to assess teak grade without relying solely on a supplier’s grade claim.
Colour consistency. Grade A teak shows a rich, consistent honey-gold to amber tone across the full surface. Teak with Grade B shows more colour variation and occasional streaks. Grade C shows strong contrast between dark heartwood areas and pale sapwood sections.
Sapwood presence. The most immediate visual indicator of lower-grade teak is sapwood: the pale, almost cream-coloured wood that appears at plank edges or as pale streaks within the board. Grade A teak has no sapwood. Grade B may have minimal amounts at edges. and Grade C contains visible sapwood sections throughout.
Grain tightness. Hold a teak board up to a light source and look at the grain pattern. Tight, fine grain indicates slow, dense growth associated with high-quality heartwood. Wide, coarse grain indicates faster growth from outer or younger timber sections.
Knots. Grade A teak is essentially knot-free or carries only very minor pin knots. Frequent, larger knots indicate Grade B or C material. Knots in outdoor teak are not purely cosmetic issues: they represent areas of different wood density and oil content that may weather differently from the surrounding timber.
Surface feel. Grade A teak feels smooth and slightly oily when you run your hand along the grain. This surface oiliness is the natural teak oil coming through the surface. Lower-grade teak with less oil content feels drier and more like standard hardwood to the touch.
Weight. Grade A heartwood teak is dense and heavy. It should feel substantially heavier than most other furniture woods of equivalent dimension. Lightweight teak is usually either a lower-density species, young plantation timber without full heartwood development, or significantly sapwood-heavy material.
Teak Grade vs Teak Species: An Important Distinction
Not all timber sold as “teak” is Tectona grandis, the species that carries all of the properties described above. Several other species are sold as teak in different markets under names such as Burmese teak, Java teak, Central American teak, or African teak.
Some of these are genuine Tectona grandis grown in different regions. Others are entirely different species that share some visual characteristics with true teak but do not share its natural oil content, silica concentration, or outdoor performance properties.
Indonesian teak from Perhutani’s Java plantations is definitively Tectona grandis. The FSC certification and SVLK timber legality documentation provide traceability from the plantation through to the finished product. Therefore, buyers who specify FSC-certified Indonesian teak from an established exporter receive a verified material identity alongside a verified grade.
For buyers who cannot inspect timber directly, material certification from FSC or SVLK provides the most reliable guarantee of both species identity and legal sourcing.
Which Teak Grade Does Latif Living Use?
Latif Living sources FSC-certified teak from Perhutani’s sustainably managed Java plantations for all teak furniture in their production. Their teak is kiln-dried before use, which removes excess moisture from the timber and reduces the risk of warping or cracking as pieces acclimatise to their outdoor environment after delivery.
The FSC certification covers the full chain of custody from Perhutani’s plantation to Latif Living’s factory output. This certification satisfies timber import compliance requirements in the US under the Lacey Act, in the EU under the EU Timber Regulation, and in Australia under the Illegal Logging Prohibition Act.
Latif Living’s teak pieces span sofa sets, dining tables and chairs, coffee tables, sun loungers, daybeds, and bar furniture. All teak components in their pieces use heartwood-grade material from their certified supply chain. Furthermore, the teak is processed through their in-house teak production facility, which includes log storage, kiln drying, and KilnTeak finishing. This vertical integration means they control the full teak process from raw log to finished furniture component rather than sourcing pre-processed teak from external suppliers.
Visit either Latif Living showroom in Bali to inspect their teak furniture directly. Assess the grain consistency, surface quality, and colour evenness as described in the visual identification section above. Their team can provide FSC certification documentation on request.
Latif Living Sanur
Jl. By Pass Ngurah Rai No.125 X, Sanur, Denpasar Selatan, Bali
+62 811-3886-034
