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post holes

Deck posts must be properly anchored to the footings to support a deck. Post holes must be dug deep enough so concrete footings are below the frost line.

3. Post Hole Excavation and Post Setting

Your post footings are the foundation of your deck and just like your house, the deck is only as strong as its foundation. Our deck plans are designed to be used with poured footings and posts set in brackets attached to the top of the footing.

The footings are constructed using a round cardboard tube form that is 8” in diameter (often called a sonotube, after a popular brand). You should check your local building codes to ensure this is adequate to pass inspection in your area.

2. Deck Layout and Footing Position Spacing

Before you dig your first footing, you will need to layout your deck in the correct position and dimensions to ensure that each footing is located in the right position. This is done by transferring the shape and dimensions of your scale deck plan to the construction area in full size.

Start from one corner and establish a straight line along one of the longest edges by driving an 18 to 24 inch tall wooden stake into the ground at each corner of that line. If one edge is against the house, or another structure, start with that and measure out to establish the outside edge.

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