Sapele Mahogany vs. Teak in Northern California Microclimates

Teak is a tropical hardwood from Southeast Asia with one of the highest natural oil contents of any commercial timber. The oils make it almost impervious to water, fungi, and marine borers, which is why it's been the dominant boat-decking wood for over a century. A piece of teak left outdoors with no finish will weather to a beautiful silver-gray and last for fifty years untouched.

Teak is also dense — about 41 pounds per cubic foot air-dry — and stiff, which gives a gate built from it a substantial, premium feel. The grain is straight and fine, and it machines cleanly with sharp tools.

For a low-humidity coastal climate where the wood is meant to weather naturally and never see a finish, teak is genuinely hard to beat. We've built a handful of teak gates over the years, mostly for clients who specifically requested it for stylistic reasons.

Northern California is not a single climate. A gate in Tiburon sees salt-laden marine air, regular fog, and humidity that rarely drops below 60%. A gate in Walnut Creek sees 105°F summer afternoons, 38°F winter nights, and humidity that swings from 15% to 95%. A gate in El Dorado Hills sees granite-foothill UV that's punishing eight months a year.

Teak handles the coastal climate beautifully. It struggles, however, with the dramatic humidity cycling we see inland. Its very high oil content makes it difficult to refinish reliably — the oils repel new finish and cause peeling within a season or two if you want the wood to retain its golden color. Most teak gate owners we know give up on finishing and let the wood weather to silver, which is fine if you wanted that look but heartbreaking if you didn't.

Teak also moves more than its reputation suggests when humidity swings exceed 60 percentage points seasonally. The movement isn't enough to destroy a well-built gate, but it can open small gaps at panel joints over years.

Sapele is a true mahogany from West and Central Africa — botanically related to Honduran mahogany but harder, denser, and more readily available from sustainable, FSC-certified sources. Janka hardness is about 1,410, marginally harder than teak. Decay resistance is rated moderate to high, with natural extractives that resist insects and fungi.

Where Sapele decisively beats teak for our climate is dimensional stability. It moves less across humidity swings, takes finish reliably and durably, and stains evenly to a deep, warm brown that develops character over years. The grain is interlocked, which gives Sapele its characteristic ribbon figure when quarter-sawn — a finished Sapele gate has visual depth that teak doesn't.

Sapele also accepts the Penofin marine oil finish we use on every gate beautifully. Refinishing is straightforward: clean, light sand, two coats of fresh oil. The wood looks new again.

As of 2026, FSC-certified Sapele runs roughly $14 to $18 per board foot for the 8/4 and 10/4 stock we use for gate frames. Teak in comparable grades runs $30 to $45 per board foot, and supply is constrained.

On a typical 8-foot wide automated driveway gate, the wood cost differential is $1,800 to $3,200 in favor of Sapele. On a single pedestrian gate, it's $400 to $900. The cost difference doesn't make Sapele the right choice on its own — but it does mean we can build a more elaborate Sapele gate with more handwork for the same budget as a simpler teak gate.

Sapele also has dramatically better supply reliability. Teak supply chains have tightened sharply as Burmese exports have been restricted, and lead times for premium teak can stretch to months. Sapele is reliably available in the grades and sizes we need, week to week.

For most of our Bay Area service area, Sapele is our default and we don't hesitate to recommend it. The clear exceptions where we'd discuss teak more seriously: properties directly on the Tiburon, Belvedere, or Sausalito waterfront where the gate is subjected to constant salt spray and the client has specifically asked for an unfinished, weathered look.

For Yountville and Napa Valley estates, where summers are dry and gates often live in full sun, Sapele's finish-holding capability is a real advantage — the gate stays the color the client paid for, instead of weathering to a silver that may or may not suit the architecture.

For inland Sacramento-region estates in El Dorado Hills, Granite Bay, and Folsom, Sapele's dimensional stability across the wide summer-winter humidity range is the deciding factor. We've never had a Sapele gate fail in those climates.

Both teak and Sapele can be sourced sustainably or not. We source 100% of our Sapele from FSC-certified suppliers with documented chain-of-custody — primarily plantations and managed concessions in Cameroon and Ghana. The FSC certification is verifiable and we provide documentation on request.

Teak sustainability is more complicated. Burmese teak is essentially unavailable in the US through legitimate channels following the 2021 import restrictions. The teak available now is primarily plantation-grown — usually in Central or South America — which is sustainable but tends to be less dense and have shorter heartwood than the legacy old-growth teak it replaced.

If you want plantation teak and a documented supply chain, we'll source it. But the modern plantation teak we'd be specifying is not the same material as the legendary Burmese teak from a half-century ago.

For a Tiburon waterfront gate where the client wants weathered, untreated wood with maximum salt and moisture resistance — teak. For everything else, including most of Tiburon, Mill Valley, Ross, Belvedere, San Rafael, and the broader Marin and East Bay corridor — Sapele.

We'll happily build in either. Our default recommendation is Sapele because it produces the most predictable long-term result across the widest range of microclimates, and it lets us put more of the project budget into joinery, hardware, and design rather than into raw material cost.

If you'd like to see Sapele and teak samples side by side, we keep both at the workshop. Request a visit through our contact page or read more about our material selection in our materials overview.

We're a 35-minute drive from Tiburon and most of central Marin, and we routinely install across the county. Site visits are free and typically scheduled within two weeks of first contact. See our Bay Area service area for current lead times.

For waterfront properties specifically, we'll evaluate the salt exposure, prevailing wind, and irrigation pattern around the gate location before recommending a wood and finish system. The wrong combination shortens gate life dramatically; the right one extends it past thirty years.

If you'd like to dig deeper, our next-best reads are Sapele vs. redwood and how these woods weather in Marin's salt air.