While you do not have to lay this particular type of boards, there are some key things to remember if you do choose it. When learning how to lay Merbau decking boards, it is important to remember that a Merbau clip relies on its teeth locking into the board with a fixing tool. The uprights of the clip set the direction which indicates the direction you should lay your boards. Lay the first row with the uprights pointing towards the front and ensure the KlevaKlips sit squarely on the outside joists.