building a backyard deck?

Question

I am getting started on a backyard deck project. I will install footers in the dirt. The deck will be 18-24 inches off the ground. It will be about 150 sf and not attached to a structure. How far apart should my footings be? I am in Nor Cal where it rarely freezes and rains some but is mostly sunny. What is best wood to use? Is pressure treated OK? And how deep into the ground should my footings be? Any other thoughts? Thanks.

Answer 1

ALL of your framing must be made of exterior #2 or better 2by material. Other words you must use pressure treated for the framing part of your deck. The rails and decking may be other type. CCA (an outlawed treated is toxic to) but AQC the present treated is not toxic to humans if burnt, but if I remember right burning in Calli is illegal anyhow. Your post are as per local code. And I would not bury the post in the dirt, the will rot and sink into the ground. Pour yourself a 12 inch wide by 2 ft. deep hole and fill it with some crete. Then anchor your post on top of that. 90% of all deck repair is sag. All ost will need a pad or footing. Every 8 ft is a good number, but can be extended by doubling your rails. Double your outside "rim" or boards and be sure to use joist hangers. I would estimate cost is around $6.75 a sq. ft.

Answer 2

Building a backyard deck is a good decision. For creating a beautiful deck, you must prepare a project which included all your requirements and the necessary changes that all you will do in the whole process. A number of options for selecting a wood are available, you choose according to your taste and requirement. But must apply a protective layer of wood oil coating which protect the deck from the sun. And of course, pressure treatment is good for the deck, it protects the deck from all the fungus and insects.

Answer 3

the span between posts will vary depending on the size of your joists, but generally not more than 8' from center to center. as far as type of wood, pressure treated is fine. if you decide to go with a different type of wood, such as redwood, cedar or one of the composites, you should still use the treated wood for the sub-structure to save some money and just use the expensive stuff for the deck surface and the trim details. as far as the footing depth, below the frost line is all that is required. you can check with your local building code agency to find out what that is in your area.
good luck.

Answer 4

Use pressure treated lumber. Contact the salesman at your local lumber yard he'll be able to help you with your questions. FYI, do not burn your scrap treated. It's poisonous.