The TWIN concept
Innovations in the field of sustainable materials, including biobased substances and composites made from residual waste, provide a wealth of opportunities to make the Streetlife Collection more sustainable. After many years of research and development, we have now introduced our TWIN concept, a series of materials that form a fully-fledged alternative to hardwood.
Sustainability & alternatives
Global awareness of growing waste streams, environmental pollution, rising CO² emissions and the depletion of natural resources has led to new ideas in sustainability, such as Cradle2Cradle (C2C) and the circular economy. These two concepts are aimed at improving the efficient and effective use of the natural resources available to us. Streetlife’s design philosophy dovetails well with these principles.
After many years of research and development, we have now introduced our TWIN concept, a series of materials that form a fully-fledged alternative to hardwood.
By adding this new identity to our product families, TWIN offers landscape designers and architects more freedom of choice.
Lava Grey
Lava Grey is made entirely from recycled household plastic waste, such as packaging, cups, bags and trays. It consists of around 75% recycled PE and 25% recycled PP. This new anthracite grey substance has a fairly rough texture. In certain places, the surface reveals how the material flowed into the mould during the casting process, like a lava stream. Pieces of coloured plastic are visible here and there in the grey mass, highlighting the origin of the recycled material. Colour and texture may vary in North America due to local production.
All Black
All Black is made from industrial and household waste plastic. This includes plastic bags, building and agricultural plastics, bottles, caps and beer crates. The material is essentially composed of two thermoplastics: PE and PP. All Black has a matt appearance and a rough texture and is black throughout due to the use of a natural dye (carbon). The colour is retained by UV stabilisers.
Cloudy Grey
Cloudy Grey is largely made from recycled household plastic waste. Cloudy Grey consists of around 90-95% recycled HDPE and glassfiber strands to strengthen the beam. This new anthracite grey substance has a fairly rough texture. In certain places, the surface reveals how the material flowed into the mould during the casting process. Pieces of coloured plastic are visible here and there in the grey mass, highlighting the origin of the recycled material.
Bamboo Brown
Bamboo Brown is made from an extremely fast-growing, giant bamboo species with a very high capacity to absorb carbon dioxide and produce oxygen. Its fast growth rate ensures that stems can be harvested after four to five years. The process of compressing the long bamboo fibres under high temperature and pressure give this material its deep brown colour. Over time, Bamboo Brown ages with exposure to light and air. The visible fibres give the smooth surface attractive variations in colour and structure. Bamboo Brown is carbon neutral, can be recycled into chipboard or used as fuel for bioenergy production in the end-of-life phase.
TWIN materials
TWIN materials

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All Black - RecycledMaterial Plastic recyclate, PP & PE Status 100% recycled Source Industrial plastic waste (PE) / Domestic plastic waste (PP) Beam size Rough&Ready 2.8"x 5.9" Max. length 97.5" Color Black Texture Rough and mat Years to grey Color stable Density 800 kg/m³ Lifespan 40-50 years Maintenance None Recyclable Yes
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Cloudy Grey - RecycledMaterial Plastic recyclate Status 100% recycled Source Pre-consumer waste Beam profile Solid 2.8"x 2.8" Max. length 118" Color Medium grey with clouds Texture Extra rough mat Years to grey Color stable Density 1060 kg/m³ Lifespan 20-30 years Maintenance None Recyclable Yes
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Lava Grey - RecycledMaterial Plastic recyclate Status 100% recycled Source Post consumer waste Beam profile Drifter 12"x12"
Heavy-Heavy 5,5"x8,3"Max. length 118" Colour Anthracite cool grey Texture Extra rough mat Years to grey Natural fade Density 1020 kg/m³ Lifespan 40-50 years Maintenance None Recyclable Yes
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