this is a simple 12 foot x 16 foot deck design slightly elevated and includes a stair case. of course you can modify the height to suit your needs. it can be built as a stand-alone structure or set against a house or other building. our blueprints are detailed, almost to a fault. but then building a deck should be taken seriously and done right.
joist size. save your budget for the decking that will be seen. plan the space between the joists firsts. a deck about ground level will mean dealing with creating a structure that with require posts and beams to elevate the joists. if the deck is within six feet of the ground, then the support beams should be spaced by no more than one foot.
the answer depends on the size and shape of your deck, the size of your footings, and the size of your beams. the larger the beam and footing size the fewer footings that are required. for most situations you will want to place footings and posts less than 8' apart.
steps: run an 8-foot 2x8 down one side, from the corner to the first saddle. then do the opposite end the same way. cut the third 2x8 along the side to fit between the first two 8-foot 2x8s. you should have a 12-foot 2x8 on each end, and a run of three 2x8s up each side and the perimeter should be 12 by 24-feet.
i want to put a deck in my back yard. it would be 12 x 24 and attached to the back of the house. the sliding door on the back of the house is 19 inches off the ground and i would just want the basic deck. nothing too fancy. it would need railings and one set of stairs to the ground. the materials would just be plain pressure treated lumber.
for a 12-foot span beam at the edge of the deck , our base-case example of 2x10s at 24 inches on-center does not meet that standard. however, 2x10s at 16 inches on-center does; in fact, for an additional $100 in materials and labor, the closer spacing gives you a 28% safety margin compared with minimum residential loading requirements.
step 2. attach the ledger board to the posts along the 24 foot length with 3 inch decking screws or spiral shank nails first. use the 12 foot pressure-treated 2 x 8s on the outside to show fewer joints. the 8 foot pressure-treated 2 x 8s will go on the inside of the posts creating two lines of sandwiched posts.
12 dedicate the four 2 x 6 x 12 foot boards to become band boards so that there are two lengths of 24 feet. these band boards will act as a layout marker for the deck joists as well as an outside frame to hide joist ends.
the materials required to build this 364 sq. ft. deck cost at least $4,000, if you use pressure treated pine and as much as $10,000 for exotic hardwood. its important to note that in many cases it may be necessary to provide a site plan to obtain various home building permits from your city hall or township.
about this deck. this is a simple 12 foot x 16 foot deck design slightly elevated and includes a stair case. of course you can modify the height to suit your needs. it can be built as a stand-alone structure or set against a house or other building. our blueprints are detailed, almost to a fault.
a simple calculation. on the 8-foot sides, that makes a spacing of 4 feet between posts, and on the 12-foot sides, the post spacing is 6 feet, which is the upper limit of the code requirement. that's a total of 8 posts. symmetry considerations may motivate you to add an extra post on each of the 12-foot sides to create uniform 4-foot spacing between
decks consume nails by the pound. for every 40 square feet of deck, plan to use at least 1 pound of 16d common nails for joists and 2 pounds of galvanized spiral nails, which stay down better than regular nails. buy a few extra pounds for insurance. if you're not planning to seal your deck,