When all your joists are in (Image 1), you can begin your decking. Composite decking is a great low-maintenance material (Image 2). Secure the first plank with screws. Special fasteners called Tiger Claws secure the remaining planks (Image 3). These are hidden under the planks. Tap the planks into place with a rubber mallet (Image 4) and then fasten. Stagger the boards as you work. When all the planks are in position, cut the boards strait with a circular saw (Image 5). Finish with stairs and railings.