The footings sound more like a personal issue. It would depend
somewhat on how large this thing is and whether or not you're
planning on running it through code enforcement. It will be to
your strong advantage to get the thing leveled up for construction
purposes which can be done by several methods. Many portable
storage buildings are sleepered on some 4 x ?? skids. You may
have some strong interest in some form of tie downs so a strong
wind storm doesn't give your gazebo to a neighbor. This can be
handled by piers, footings, or even trailer tie down augers.
I'm glad you like the look of Thompson's on wood and I sure hope
it does something for you. My experience is that the wood is
going to turn gray whether it is pressure treated yellow pine,
white oak, heart grade red wood, or any of the cedars. 2 years, 2
winters, rain, and lawn sprinklers will establish their own shades
of gray. The one finish I feel that works or would recommend
would by Olympia semi transparent stain or equal. It will still
require reapplication, but it will give you a color of your choice
and still let some of the character of the wood show through..
Keep the whole world singing . . . .
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