Available in 6″, 8″, 10″ and 12″ diameters in standard lengths of 4′. Sonotube® Tube Base® footing forms are used in conjunction with Sonotube concrete forms for added strength, increased stability and greater bearing capacity.

Do you need a footing under a sonotube?

Once adjustments have been made, your Sonotube should stand evenly on its own. However, if you are using an in-ground footing, your tube should sit evenly on top of it. In theory, your Sonotube should stay in place on its own.

How deep does my sonotube need to 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.

What can I use instead of sonotube?

Pro Post Foundations screw piles in return, should be considered as your best alternative to concrete sonotubes.

Do you put 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.

Can Sonotubes be left in the ground?

Absolutely NOT! Sonotubes are not designed to withstand the pressure and weight of collapsing soil and should never be used in this manner. Serious injury or death could result.

What is the largest Sono tube?

Forms are available in diameters ranging from 6″ to 36.” For diameters larger than 36,” Sonotube Commerical is available. Standard length is 12.” Custom lengths available upon request.

How high are Sonotubes above ground level?

The one-of-a- kind Sonotube Builders Tube concrete form is designed for below ground-line concrete placement, but can be used up to 3 feet above ground-line for extra support. Minimal bracing is required above 2 feet of ground-line.

Do post footings need rebar?

Plain concrete deck foundations without rebar are acceptable under the minimum standards of construction established in the International Residential Code. However, placing reinforcing steel within footings is a relatively easy and inexpensive practice that can provide increased performance.

What size footings do I need for a 6×6 post?

FOOTINGS: – Poured concrete footings should be a minimum of 8” wider than the posts (4×4 post – 12” min. width, 6×6 post – 14” min. width), a two level deck or deck with roof – 24”x24”. – The bottom of the footings must be a minimum of 36” below finish grade level.

How much cement does it take to fill 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.

What diameter sonotube for shed?

The decision as to whether to go for 10 or 12 inch diameter tubes will depend on the ground conditions where you intend to build your shed. If your site is on sandy or gravelly ground then 10” diameter would likely be sufficient, for a more clay soil then 12” diameter would more likely be adopted.

Can you cut a sonotube?

Cut around the sonotube with a keyhole saw. A keyhole saw has a pointy tip that you can press into the cardboard. This eliminates the need to drill a pilot hole for the saw. Keep the cut around the tube level with the strings.

What is cheaper screw piles or concrete piles?

Due to their easy installation and no-spoil-removal characteristics, screw piles tend to be the more cost-effective option for laying foundation too.