Sustainable Materials & Product Care
At SLH, we pride ourselves on the quality of every piece we sell, across Karpenter, Janish, Houe, Mindo and our own SLH range. Here’s what our furniture is made of, and how to look after it.
Keep on reading to explore what our funriture pieces are made of and how you can care for them.
Oak & Black Walnut
Our Oak and American Black Walnut are ethically sourced from managed forests and crafted into solid timber furniture built to last. Both are hard, durable woods with beautiful natural grain, finished with water-based sealants, natural oils or washes that let the timber show through.
Care - Clean regularly with a damp then dry cloth. For extra protection, a topcoat can be added — follow the instructions and test on an inconspicuous area first. Keep away from direct sunlight, high-use areas, and heat, air-conditioning, or moisture exposure, as these can cause yellowing and timber movement.
Teak
Our teak is reclaimed from old buildings or sourced from certified suppliers, then restored into furniture with real history. Dense, naturally oily and extremely durable, it works beautifully indoors and out. Our reclaimed teak is FSC certified.
Care - Clean regularly with a damp then dry cloth. For extra protection, a topcoat can be added — follow the instructions and test on an inconspicuous area first. Keep away from direct sunlight, high-use areas, and heat, air-conditioning, or moisture exposure, as these can cause discolouration and timber movement.
Rattan
Rattan is a rapidly renewable resource, a sustainable alternative to slower-growing woods. We weave it into breathable, lightweight seats and backs, often paired with solid teak or oak frames.
Care - Just like any other timber regular cleaning with damp or dry cloth is advised. Avoid areas in direct contact with sunlight, and areas exposed to direct air-conditioning,
Bamboo (Outdoor)
Bamboo is one of the most sustainable materials available. It grows over 1 m a day, matures in 5-6 years (versus about 50 for oak) and regrows from its roots without pesticides or fertilisers. It’s harder than oak, ash or beech, stays stable in humid conditions and absorbs more CO2 than ordinary wood.
Care - Oil before first use, again after about 4 weeks, then as needed. Avoid covers that trap moisture, and keep it clear of trees and debris.
Recycled Boat wood
Kleo purchases retired fishing boats (40-50 years old) from Indonesia's northern coast, freeing the shoreline of waste while giving fishermen extra income. The hardwood is stripped of metal, kiln-dried, and upcycled into furniture, sometimes keeping traces of the boats' original paint.
Care - Sturdy and low-maintenance. Avoid harsh chemicals; wipe with a lightly damp cloth to remove dust or debris.
Recycled Household Plastic
Houe chairs are made from 98% recycled household plastic, saved from landfill and the ocean and turned into comfortable, durable lamellas. Houe is certified with the EU Ecolabel, and every piece is designed in Denmark.
Care - Wipe with mild soapy water and a soft cloth. Avoid abrasive cleaners.
Powder-Coated Aluminium & Steel
Powder coating is solvent-free and releases little or no VOCs. It gives metal frames a thick, even finish that resists rust, so pieces last longer outdoors and need replacing less often.
Care - Rinse with fresh water and wipe with mild soapy water, especially near the coast. Touch up any chips promptly to protect the metal underneath.
The reclaimed wood used in our production is certified by the Forest Stewardship Council (FSC). The FSC stamp guarantees that our furniture is produced in compliance with standards of sustainable forests and plantation management. Solid wood is dynamic and adapts naturally to the environment. This makes it a durable material that will stand the test of time.
SUSTAINABLE CHOICE
Our upcycled hardwood comes from decommissioned fishing vessels in North Java, paired with powder-coated steel and other local materials to create unique, eclectic furniture with a lighter footprint. Our outdoor range turns household plastic waste into comfortable lamellas and pairs durable aluminium with certified teak and ceramic.
We also work with a single supplier who uses teak offcuts from a government-managed forest. Their head-to-tail approach celebrates natural flaws rather than hiding them, so offcuts are used rather than wasted.
We specialise in timber and outdoor furniture for homes and hospitality spaces, built to last. Join us on this journey.
Explore Our Materials
Indoor
Solid oak, reclaimed teak, walnut and boat wood, with care tips for each. Indoor materials
Outdoor
Recycled plastic, bamboo, teak, ceramic and powder-coated metal. Outdoor materials
Mamagreen
The materials behind our custom outdoor furniture. Mamagreen materials











