Species this teak decking comes with side grooves so you can fit it with hidden decking fasteners teak decking originates from indonesia teak is an exotic hardwood with a golden colour dark markings and a straight grain over time it will take on a natural silver gray patina colour which will truly transform your garden and will yield an startling exotic look teak has unparalleled durability workability and resistance to every extreme of climate this is why it is used in the boat industry