to calculate the load, you should use 40lbs per square foot for live loads these are variable loads that are dynamic such as the weight of people and furniture and 15 lbs per square foot for dead loads this is the weight of the materials used for the construction of the deck for a total load weight of 55 lbs per square foot.
total square footage; length x width in feet and inches total length of your decks perimeter board size; the angle of your decking 90 to the joist giving a horizontal, strht-across look 45 to the joist giving a diagonal, slanted look to your floor boards
precast decking costs $5 to $12 per square foot, without installation. consider this a compromise between pavers and poured concrete. consider this a compromise between pavers and poured concrete. the builder will pour and cure fresh materials into an existing mold.
once you have the square footage of the deck, you need to find the square footage of the board youve selected in feet. to find this multiply the width of the floor-board in feet times the length in feet. you can use our feet and inches calculator to convert the board width in inches to feet.
pressure-treated wood is another option for deck builders looking for long-term decking with a lower cost. on average, you can expect to pay between $8 and $10 per square foot, which makes it more than soft woods and less expensive than specialty hardwoods. however, the maintenance is lower, requiring only a reapplication of a sealant annually.
redwood decking is generally available in the west but can be harder to come by east of the rockies. $6 to $8 per square foot. composite and other synthetic decking has the advantage of being virtually maintenance-free.