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sonotube

  1. General DIY Discussions
    I needed to replace a rotted porch column and took the chance to dig up the old leaning footing and put in a new one with a 12” wide sonotube below the frostline. Previously, the old concrete footing was just showing(hideous). Now, I want to wrap the bottom with something. I am basically...
  2. Building & Construction
    The Scenario: Holes, for footers, have been dug out with an auger to a depth of about 48 inches. The bottoms have been flared out an extra few inches. A few inches of crush stone was added and concrete was poured. Just before the holes were filled, a ~24 inch section of round form tube was...
  3. Building & Construction
    I want to increase existing footer thickness on 20" round footing that is about 3" to 4" thick now (best guess from outer edge). Problem is it is 16 years old, not flat , not smooth & is dirty. It also has a 2x6 imbedded in it that I can't remove as it is not rotten (nor was the post). This was...
  4. Landscaping & Lawn Care
    I am building a small retaining wall (2 feet tall) and have 2 questions. 1)Can I use large basic concrete block on the base (buried) course and my stackable finished concrete blocks on the second course? The 1st course will not be seen. They are cheaper and the concrete block is more...
  5. Building & Construction
    We are going to be building a 16x24 cabin with a loft and will be using sonotube concrete forms for the footings. How far apart should they be spaced, how far below the frost line (10 inches), and how far above the ground would you recommend? Also, we are plannig on renting either a bobcat...
  6. Building & Construction
    Hello everybody I was having a discussion with my boss and now I'm not too sure what to think, so thought I would try to find some other opinions, as I could not find a definitive answer via google. A few years ago whenever we would pour concrete for the purpose of laying flagstone we would...
  7. Building & Construction
    anybody ever heard of pouring a concrete slab over a sonotube enclosed area. Such as a 24 x24 garage. Place sonotubes around the perimeter and then pouring the concrete slab. The sonotubes would maybe act as a frost wall. Ok heres your chance to tell me im an idiot
  8. Building & Construction
    Hey guys I live in Massachusetts and have a 10x12 now that sits on blocks. It's pretty level actually and sits out back in a yard that abuts wetlands. I plan on extending the shed lengthwise to 10x24 and was thinking whether I should use blocks again or sonotubes. My main concern here is...
  9. Building & Construction
    Background My house sits on a hillside. The house is on stilts (6x6) which in turn sit on concrete piers. The piers are about 24" in dia. I was told by the builder that the concrete piers sit on and are pinned to ledge. The area around the house is all ledge and boulders. It is my...
  10. Building & Construction
    Hello, I am going to build a small cabin 26' X 40'. One story wood. cabin will have a center beam 3-2x12s(for floor). frost line is 12" and ground is rated 2000 psf. tallest pier will not be more than 8 feet. I would like to use sonotubes. Maybe someone can help me with the spacing and sizes...
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