The most common wood deck so far in Singapore is Chengal wood. It gives the outdoor decks a wood feeling and a beautiful outlook. However, most consumers are still not aware that Chengal wood today is considered a protected species by Forest Stewardship Council.
The heartwood is initially light brown in colour but darkens on exposure to a deep brown, becoming very dark brown or even black with age or over exposure. The grain is commonly straight, occasionally slightly interlocked. Texture is fine and even.
When freshly cut, the heartwood of merbau is a yellowish to orange-brown color, but then darkens to brown or red-brown. The grain of this coarse-textured wood varies from straight to interlocked or wavy.