- Place a deck board at one corner of the deck. Position the board at the desired angle for the diagonal decking. The ends of the decking boards extend over the edges of the deck frame. Attach the decking in place with two 2-inch galvanized deck screws into each deck frame or joist the decking rests on.
- Add additional decking boards to the deck. Space each board about a quarter inch from the previous board. Allow the boards to extend beyond the frame enough so the entire deck frame is covered. Continue adding boards across the deck in this manner.
- Find the point of the edge of the deck frame at each end of the deck. Stretch a chalk line between the points and raise the line before allowing it to snap back, leaving a mark along the line directly above the edge of the deck.
- Cut along the chalk line using a circular saw. The decking material beyond the framework is waste.
Things You Will Need
- 2-inch galvanized deck screws
- Screw gun
- Chalk line
- Circular saw
- Adjust the depth of the cut of the circular saw so the blade does not cut or mark the edge of the frame.
- Because of the waste material from the edges, diagonal decking commonly requires more decking material than decks with a more standard construction.