There's no standard lifespan for a piece of teak furniture. The best published figure we found is for the wood itself: the Queensland Government rates teak above the ground as durability "Class 1 (life expectancy more than 40 years)" (Business Queensland, 2018). How long your own set lasts depends on how it's built, where it stands and how you look after it.
Day-to-day care is simple. Gray weathering is a color change, not damage, and a wash with mild detergent 2 or 3 times a year covers routine cleaning. This guide covers what the research says, cleaning, warning signs, winter and how much patio space a six-seat set needs. We sell Anderson Teak outdoor furniture, so we point out where advice comes from the maker rather than an independent source.
Key Takeaways
- No source we found gives a lifespan for teak furniture. Queensland rates the wood Class 1 above the ground (more than 40 years) and Class 2 in the ground (15 to 25 years).
- Gray teak is normal. Anderson Teak says graying doesn't affect durability, so oiling is a choice about color, not survival.
- Wash with mild detergent, water and a soft plastic brush 2 or 3 times a year. Skip steel wool and wire brushes, which can leave iron stains, and we advise against pressure washers.
- In winter, cover the set with a breathable cover or move it to shelter. Bring cushions indoors and keep the feet off bare soil and standing water.
In this article:
- How long teak lasts outdoors: what the research says
- What decides how long a teak set lasts
- Gray or golden: choosing your finish path
- How to clean teak outdoor furniture
- Signs your teak needs attention
- Teak in winter: leave it out, cover it, or store it
- Planning space for a teak dining set for six
- Frequently asked questions
- About this guide
- Sources
How long teak lasts outdoors: what the research says
Teak is a durable outdoor wood, but the published figures describe the timber, not finished furniture.
The USDA Forest Products Laboratory (FPL) says teak heartwood "has excellent dimensional stability and a very high degree of natural durability" (Wood Handbook, 2010). In plain terms, the wood holds its shape well as moisture changes, and it resists decay without treatment.
The Queensland Government's teak timber page, last updated December 12, 2018, adds numbers. It rates teak "Class 1 (life expectancy more than 40 years)" above the ground and Class 2, with a life expectancy of 15 to 25 years, in the ground. It lists teak as resistant to termites but notes that untreated sapwood is "susceptible to lyctid borer attack" (Business Queensland).
These are Australian durability ratings for teak timber, not a promise for any chair or table. The ratings do show that wood in soil is rated for a much shorter life than wood kept above it, so keep the feet of a teak set off bare soil and out of standing water.
What about longer lifespan claims?
You may see much longer lifespans quoted for teak furniture online. We looked for a published study or rating behind those figures and didn't find one, so we don't repeat them here. If a seller quotes a number, it's fair to ask for the source.
What decides how long a teak set lasts
The wood, the drying, the joinery, where the set stands and how you clean it all play a part. You lock in the first three when you buy; the last two are up to you.
- Heartwood or sapwood. The FPL's durability note describes teak heartwood, the inner wood of the log. Queensland flags untreated sapwood, the outer layer, as open to lyctid borer attack.
- Drying. Kiln drying brings timber down to a target moisture level before it's cut and joined. A spec that states the level shows the maker documents this step.
- Joinery. In a mortise-and-tenon joint, a shaped end (the tenon) fits into a matching slot (the mortise). Check the joints when you clean, and tighten any hardware that has worked loose.
- Ground contact and standing water. Teak in the ground is rated for a shorter life, so set the feet on a deck, patio or pavers where water doesn't pool.
- Cleaning habits. The FPL lists mildew growth as one reason wood turns gray outdoors. It also warns that steel wool and wire brushes can leave small iron deposits that stain wood. Gentle washing, covered below, avoids both problems.
Worked example: the Bahama Chicago set
The Anderson Teak Bahama Chicago oval dining set for six is one set we sell. Anderson's spec lists solid teak (Tectona grandis), kiln-dried to 8-12% moisture, with mortise-and-tenon joinery and non-marking feet. It's made in Indonesia.
That answers the drying and joinery questions in writing. If heartwood versus sapwood matters to you, it's a fair question for any teak seller, including us. The non-marking feet protect your deck or patio, but they don't lift the wood off wet ground, so keep the set out of soil and standing water.
Gray or golden: choosing your finish path
You can let teak weather to gray, or you can keep its honey tone with oil or a sealer. Anderson says the gray does no harm, so the choice comes down to looks and upkeep.
The FPL explains why wood changes color outside. According to its chapter on finishing wood, "all woods become gray because of the loss of colored components from the wood surface and the growth of mildew" (Wood Handbook, 1999). That chapter covers wood in general, not teak alone. It says weathering wears away only about 1/4 inch (6 mm) of wood in a century, and that this erosion is slower for most hardwoods.
Anderson Teak says graying "does not affect the durability of the teak furniture or the wood itself" (Care & Maintenance). Its care guide calls gray teak "perfectly normal" and says it "does not affect the strength or durability of the furniture" (How to Care for Teak Furniture).
| Path | What you do | How often |
|---|---|---|
| Let it weather | Wash with mild detergent, water and a soft-bristle plastic brush | 2 or 3 times a year (Anderson) |
| Keep the honey tone | Clean first, then apply teak oil or a teak sealer | Every 3 months if you choose oil (Anderson) |
If you choose oil, read the label before you buy. The FPL says drying oils such as linseed and tung "are not recommended for exterior use unless they are formulated with a mildewcide." It also gives water-repellent preservative finishes a life of only 1 to 2 years. Its notes cover wood in general, so follow each product's directions for how often to reapply.
We read these sources as saying oil is cosmetic upkeep, not protection teak needs to survive outdoors. Oil keeps the color, and Anderson says the gray it holds off doesn't weaken the wood.
How to clean teak outdoor furniture
Wash teak with mild detergent, water and a soft brush 2 or 3 times a year. That's Anderson's routine, and it applies whether you let the wood gray or keep it oiled.
- Clear the set. Take off the cushions and pull the chairs away from the table so you can reach every surface.
- Mix the wash. Anderson's care page calls for "a solution of mild detergent and water" (Care & Maintenance).
- Scrub gently along the grain. Use a "soft-bristle plastic brush," as Anderson suggests.
- Rinse well. A garden hose on a gentle spray setting does the job.
- Let it dry fully. Give the wood time in open air before you cover it or put the cushions back.
Leave the steel wool and wire brushes out of it. The FPL explains why: they can leave "small iron deposits" behind, and iron reacting with chemicals in the wood causes "an unsightly blue–black discoloration" (Wood Handbook, 1999).
Cleaning outdoor cushions
Check your cushion's care label and warranty first, since they govern your fabric. Per the product listing, Anderson offers Sunbrella cushions for this set as a made-to-order option. For Sunbrella upholstery, Sunbrella's cleaning instructions suggest:
- Routine cleaning: "1/4 cup mild soap per gallon of lukewarm water."
- Mildew: "1 cup of bleach and 1/4 cup mild soap per gallon of water," left to soak for 15 minutes, then rinsed.
- Drying: let the fabric air dry, as Sunbrella directs.
We suggest cleaning cushions off the frame and away from the teak, so the bleach mix stays off the wood.
Signs your teak needs attention
Most changes on outdoor teak are cosmetic. A few are worth a closer look, and the FPL's finishing chapter explains the common ones (Wood Handbook, 1999).
- Even silver-gray color. This is normal weathering. Anderson says it doesn't affect strength or durability.
- Dark spots or patches. These may be mildew or plain dirt. The FPL's simple test: put a drop or two of household bleach solution on the spot. "The dark color of mildew will usually bleach out in 1 or 2 min," and a spot that doesn't bleach "is probably dirt." Try it somewhere out of sight, then wash the set as described above.
- Blue-black stains. These often point to iron. The FPL links them to steel nails and to traces of iron left by steel wool or wire brushes. It says "Oxalic acid will remove the blue–black discoloration from iron," and notes that many commercial brighteners contain it. Follow the product label and test a hidden spot first.
- Loose joints or hardware. Check the joints when you clean and tighten any hardware that has worked loose.
- Wood that stays wet at the feet. Teak in contact with the ground is rated for a shorter life, so move the set if water pools under it.
- Soft wood, deep cracks or a split joint. These go beyond routine care. Stop using the piece and contact the seller or maker before you repair it yourself.
Teak in winter: leave it out, cover it, or store it
Anderson's winter advice is short: "During winter months, it's best to cover your teak furniture or move it to a sheltered area" (Care & Maintenance). Wash the set and let it dry fully first, then pick one of these options.
- Cover it. We suggest a breathable outdoor furniture cover rather than plastic sheeting or wrap, so moisture doesn't stay trapped against the wood. The FPL names mildew growth as one cause of graying, and trapped damp is the condition we'd rather avoid. Our wood furniture care guide covers more seasonal care.
- Store it. A garage, shed or covered porch gives the set shelter.
- Leave it out. If you can't cover or move it, the set can stay put, but Anderson calls covering or shelter the better choice. Keep the feet on a deck, patio or pavers, out of soil and standing water, and plan a wash in spring.
Bring cushions indoors for winter, clean and fully dry, whatever you do with the frame. If indoor space is tight, our deck boxes and outdoor storage give cushions a closed spot near the patio.
Planning space for a teak dining set for six
Where a set stands also shapes how long it lasts, so it pays to plan the spot before you order. By our arithmetic, the Bahama table needs a clear area of about 10.9 by 9.3 feet with the leaf down and 36 inches of room on every side. With the leaf up, plan for about 12.6 by 9.3 feet.
Anderson's spec puts the Bahama oval extension table at 59 inches long, 79 inches with the butterfly leaf raised, 39 inches wide and 29 inches high. The leaf "opens or closes within 15 seconds," according to Anderson. The two Chicago armchairs are 22 inches wide and the four Chicago chairs 18 inches wide, and all six are 19 inches deep and 40 inches high.
For walking room, we borrowed the NKBA Kitchen Planning Guidelines (Guideline 8). For clearance behind a seated diner, the NKBA calls for 32 inches where no traffic passes, at least 36 inches for someone to edge past and at least 44 inches for someone to walk past (NKBA). These are kitchen seating guidelines, and we apply them to a patio table as a planning rule of thumb.
We added each clearance to all four sides of the table, using its full length and width. The result is the clear rectangle you'd need in each case.
| Clearance on each side | Leaf down (59 x 39 in table) | Leaf up (79 x 39 in table) |
|---|---|---|
| 32 in (no one passes behind) | 123 x 103 in | 143 x 103 in |
| 36 in (someone can edge past) | 131 x 111 in (about 10.9 x 9.3 ft) | 151 x 111 in (about 12.6 x 9.3 ft) |
| 44 in (people can walk past) | 147 x 127 in (about 12.3 x 10.6 ft) | 167 x 127 in (about 13.9 x 10.6 ft) |
Measure to whatever stops a chair or a person: a wall, a railing, a step, a grill or a planter. Before you order, measure your patio or deck and mark the rectangle on the ground with tape or chalk.
The table also has a 2 in umbrella hole with a solid brass plug, per Anderson's spec, and an umbrella isn't included. If you plan to add one, check that its pole fits a 2 in hole.
Once you have your measurements, compare table sizes across our outdoor dining sets to find one that fits your space. Furnishing indoors too? Our guide to whether mango wood is good for furniture explains how it compares with teak.
Frequently asked questions
Can teak furniture stay outside in winter?
It can, but Anderson Teak says it's best to cover it or move it to a sheltered area in winter. Use a breathable cover, bring the cushions indoors and keep the feet out of soil and standing water.
Does outdoor teak need to be oiled?
Not for durability, according to Anderson Teak. Anderson says graying doesn't affect the wood's durability and suggests oil every 3 months only if you choose to use it. If you do oil, the FPL notes that linseed and tung oils need a mildewcide for outdoor use.
Is gray teak damaged or rotting?
No, graying on its own isn't damage. The FPL explains that all woods gray outdoors as colored components are lost from the surface and mildew grows. Anderson calls gray teak "perfectly normal" and says it doesn't affect strength or durability.
Can I pressure wash teak?
We advise against it. Our teak and wood care page notes that a pressure washer can raise and damage the grain. Anderson's own routine is mild detergent, water and a soft-bristle plastic brush, and that is what we recommend.
About this guide
The Woodenluxe team wrote this guide. We're an Anderson Teak retailer, and we sell the Bahama Chicago set shown here. The guide summarizes the published sources listed below, and we didn't run our own tests.
The footprint figures are our own arithmetic, based on Anderson's table dimensions and the NKBA clearances. We'll update this page when a source or a product spec changes.
Questions about caring for a teak piece or about an order? Contact us and we'll help. You can also read more about who we are and our return policy.
Sources
- USDA Forest Service, Forest Products Laboratory. Wood Handbook: Wood as an Engineering Material (FPL-GTR-190), chapter 2. 2010.
- USDA Forest Service, Forest Products Laboratory. Wood Handbook (FPL-GTR-113), chapter 15, "Finishing of Wood". 1999.
- Queensland Government, Business Queensland. Teak timber properties. Updated December 12, 2018.
- Anderson Teak. Care & Maintenance. Modified September 29, 2025.
- Anderson Teak. How to Care for Teak Furniture. Accessed October 2026.
- Sunbrella. Cleaning Sunbrella upholstery. Accessed October 2026.
- National Kitchen & Bath Association (NKBA). Kitchen Planning Guidelines, Guideline 8. Accessed October 2026.