Pondering whether to use concrete in sono-tubes and augering 4-5 ft. down or just on the ground cement post holders.
Building a fairly large approx 18x16 wood deck. The earth is "pain in the butt, clay". Perhaps the deck will be 2 tier. The deck will not be attached to my brick home.
Thx for your advice.
Definitely dig! For a deck this size you need the support. But simply farm that job out to someone who does it for a living. You will be surprised how inexpensive it is. They have the right equipment and know how to address any surprises that may come up.
The company I use here in Burlington charges about $25 per post hole for fences and a bit more for deck footings. They get everything aligned perfectly every time. It is the BEST value for the money.
Good morning Rob,
Not so much the square footage size of the deck but the height. Make sure your deck meets Ontario Building Code and your local municipality requirements. Most likely you need a permit with the square footage you mentioned.
A low deck you can use dek blocks but if you want to ensure it never moves due to frost heave then you should install sono tubes. As you mentioned, If using dek blocks never attach the deck to your house. If there is deck movement, frost heave it will tear the deck right off your home.
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