noun
artificial wood; faux wood
Refers to wood-like materials made from plastic, composite, or other synthetic substances, used in furniture, decking, and construction.
このデッキは人工木でできているので、腐りにくい。
This deck is made of artificial wood, so it doesn't rot easily.
人工木の家具は手入れが簡単だ。
Furniture made of faux wood is easy to maintain.
合成木材 is a more technical term for synthetic wood, often used interchangeably with 人工木.
Compound of 人工 (じんこう, 'artificial') and 木 (もく, 'wood'). A straightforward modern coinage.