How to Build Yourself Landscaping Walkways & Decks

Clear and level the ground in the area in the area where the deck will be constructed. Mark the area that the outside of the framework will cover with string, and measure the diagonals to ensure that the rectangle formed by the deck is properly squared.

Cut joists for the frame border and assemble the perimeter of the frame in place on the ground. Predrill and screw the ends together with galvanized screws. Measure and cut joists and screw them inside the frame border with galvanized screws. Joists should be set 16 inches apart and parallel to the house. If you plan to attach the deck to the house itself, you'll need to lag bolt a joist to the house as a ledger board at the height of the deck so you'll have something to attach the framework to. Caulk around the ledger board and over the lag screws to prevent water from pooling and soaking into the walls of the house.

Stiffen the joists by screwing 16-inch nogings (2-by-6 cross braces) every 16 inches between the joists to create a framework that is a series of squares. Use a speed square and level to insure the joists and nogings are level.

Measure and mark where the support posts will set within the frame. The posts should sit at corners of each square of the framework. Dig holes 2 1/2 feet deep at the corner of each frame square. Cut the posts long enough to support the framework at the desired height of deck. Set the posts in each hole and adjust the height at the top so they are level.

Mix concrete and pour it into the holes. Fill the holes to 3 inches below the surface of the dirt with concrete, straighten and level the posts. Allow the posts to set overnight.

Lift the framework and temporarily nail the frame in place against the posts. Predrill through the joists and into the posts. Screw half-inch lag screws through the joists into the posts.

Cut and lay the deck boards flat over the framework in the opposite direction of the frame-work joists. Push the deck boards tightly together. Do not space them. If the deck or walkway is against the house, the deck boards should run perpendicular to the house to carry rainwater away from the house.

Screw the deck boards to the joists and nogings with galvanized screws. Trim them to fit the framework. One or two screws will be sufficient. Too many screws will weaken the joists.

Sand and seal the deck if the lumber is not already treated. To make walkways, repeat the process, but with only two joists supported on posts. Lay the deck boards cross-wise across the joists.