The rule-of-thumb is to use a tube diameter 3 times the post width, therefore use a 12” diameter Sonotube for a 4×4” post.

How do you calculate concrete for a tube?

To figure out how much concrete you need to buy you simply need to multiply your tubes volume by its density which will determine its weight.

How many cubic yards are in a sonotube?

Based on the fixed diameter and depth (or height) of the sono tubes for a project, our customers can get an accurate calculation of the amount of ready-mix concrete needed to fill that sono tube. For example, a sono tube with a 10″ diameter and a 4′ depth requires 0.08 cubic yards of concrete.

How deep should Sonotubes be?

Determine how deep you want your tubes. Dig down to the frost line before pouring the concrete. Frost lines vary depending on your region. Start by assuming you want a 10-inch diameter Sonotube that is about 3 feet deep.

Do I need rebar in sonotube?

We usually recommend that a minimum of two pieces of #4 rebar be placed vertically in an 8-inch-diameter concrete pier supporting a structure. A larger-diameter pier should have four or more pieces of vertical rebar.

How many cubic feet is an 80 lb bag of concrete?

80 lb bag of concrete cubic feet

80 lb bag of concrete yields 0.60 cubic feet which is approximately around 0.0222 cubic yards that will cover around 3.6 sq ft area up to standard depth of 2 inch excavation or backfills, and for 1 cubic feet of landfill you will need 1.66 bags of 80 lb concrete.

How many 50lb bags of concrete make a yard?

If you’re using 50lb bags of concrete, you’ll need 72 bags to make a yard. If you’re using 60lb bags of concrete, you’ll need 60 bags to make a yard. If you’re using 80lb bags of concrete, you’ll need 45 bags to make a yard.

How many yards of concrete do I need for a 24×24 slab?

For example, for a concrete slab that is 24′ X 24′ X 4”, simply enter 4 in the Thickness/Depth field, 24 in the Width field, and 24 in the Length field. Click “Calculate”. Your answer should be 7.11 yards. Note: The Concrete Volume Calculator can also be used to determine yardage for aggregate products.

How do you calculate concrete for a round hole?

Calculator Use
Choose Round Column (or Round Slab) on the calculator.Enter Height 4 ft (or 48 in)Enter Diameter 10 in.Calculate and the answer is 0.08 cubic yards for one concrete tube.Multiply 0.08 x 50 = 4 total cubic yards of concrete for 50 tubes.

How many yards of concrete do I need for a 10×10 slab?

The amount you will need for a 10 x 10 slab is 1.3 cubic yards, we always add an extra 10% to allow for any slab depth variations or spills that may occur.

What size sonotube for a deck?

A good size for a common backyard deck is a 10″ or 12″ diameter for the sonotube and a 20″ base diameter. Of course, you can get a 24″ base size and it will spread weight over an even greater surface area. The one down side to this is the extra digging involved.

How many yards are in a bag of Sakrete?

One 80lbs bag of Quikrete Concrete Mix will yield approximately . 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete. If you have a project over a 1/2 a cubic yard you should consider our Mix On-site Concrete especially if you are hand mixing.

How many yards are in a 60 pound bag of concrete?

60 pound bag yields .017 cubic yards.

How many bags of cement do I need for a 10×10 slab?

At 4″ thick, for a 10×10 slab, generally, you will need 1.23 cubic yards or 33 cubic feet or either 74- 60lb or 56-80lb bags of premixed concrete.

How many cubic feet are in a 60 pound bag of concrete?

A: Each 60-pound bag of QUIKRETE Concrete Mix yields approximately 0.45 cubic feet of concrete when mixed, so a cubic yard will require sixty 60-pound bags.