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**Deck Builder Calculator** provides estimates for a simple rectangular deck project. Calculator functions include the following:

**Deck Board Count**: Computes the number of decking boards needed for your deck based on the size of the deck and the size of the decking boards.**Deck Boards Cost**: Computes the cost of deck board flooring based on a computed number of deck boards and the price per board.**Decking Cost Estimate**: Estimates the cost of wood board decking based on total area and unit pricing in dollars per square feet.**Subfloor 4x8 Sheets**: Computes the number of 4x8 sheets to cover floor/deck area.**Subfloor Cost**: Computes the cost of 4x8 sheets to cover fool/deck area.**Deck Joist Count**: Computes the number of floor joists needed for a deck. It returns the number of joists and plate boards, square feet of area and the length of the diagonal.**Joists on Beams**: Computes the number of joists (2x dimensional lumber or i-joists), number of beams, number of joist hangers, and length of plate boards needed for a floor or deck with a span that might require one or more beams.**Deck Joist Cost**: Computes the total cost of the floor joist boards.**Deck Stain and Sealer**: Computes the amount of stain and sealer needed for a deck.