After you have chosen the timber, you can get the timber pre-cut at selected Bunnings stores. You can always customise the bench to suit any size space. In this case our finished bench is 500mm high x 1890 long x 405mm wide. That means we need 10 x 1800mm lengths for the bench and 10 x 500mm and 10 x 410mm lengths for the legs.
TIP: Straight timber makes for a straight bench. When choosing your timber, look down the length for any cupping (side-to-side curve) or crowning (up-down curve). If you spot either of these, put those pieces back.