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The Daily Insight

How do you fill a sonotube

Author

Emily Dawson

Published Mar 31, 2026

Place the tube in the hole, filling around the outside to secure. If the tube extends more than 2 feet above the ground line, provide additional support with a collar or wooden frame and side braces. Fill: Be sure the Sonotube® Builder’s Tube® concrete form is dry before filling it with concrete.

How much concrete does it take to fill a 12 sonotube?

Diameter (in.)Height of Column10.061.32312.087.46614.119.63416.155.827

Do Sonotubes need to be removed?

Does the Sonotube form have to be stripped from the column after the concrete has cured? Removal of the form is general practice for exposed column surfaces. In applications below grade, there is no specific need to strip the form unless it is required by local building code.

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.

How deep should Sonotubes be?

When I reach our local frost depth of 48 inches, I add about 6 inches of stone to the bottom of the hole. This provides a good base for the footing, which consists of 6 inches of concrete to tie all the rock together and an additional 6 inches for anchoring the tube form.

How many bags of concrete do I need for a 8x10 slab?

Regarding this, “how many bags of concrete do I need for a 10×8 slab?”, at 4 inches thick, generally you will need approximately either 58 bags of 60lb or 45 bags of 80lb of premixed concrete for a 10×8 slab, at 5 inches thick slab, either 73 bags of 60lb or 56 bags of 80lb premixed concrete are required, while at 6 …

How many 80lb bags of concrete are in a yard?

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 bags of concrete is in a cubic yard?

Use the following yields per each bag size: 40 pound bag yields .011 cubic yards. 60 pound bag yields .017 cubic yards. 80 pound bag yields .022 cubic yards.

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.

What size do Sonotubes come in?

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. Sonotube concrete forms, Sonovoid®brand void forms and BlastMaster blasting tubes are available from dealers throughout North America.

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Do you put rebar in sonotube?

Q. To support a beam for a residential deck, does a Sonotube pier need any rebar? A. … 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.

Do you remove concrete tube forms?

Watch out: Never remove a concrete form before the concrete has cured enough to carry its load – else the pier will collapse. Concrete form tubes such as Sonotubes should in fact be removed where fire rating is important, as the form tubes themselves are not fire-rated.

How do you remove sakrete tubes?

If forms are to be removed, do so within 24 hours. Cut the QUIK- TUBE™ with a sharp knife or power saw set to the correct cutting depth. Simply peel the form away from the concrete.

What is the purpose of a sonotube?

Sonotube concrete forms stand strong as the most economical way to create round columns for buildings, entryways, structural columns, light posts and other commercial and residential structures.

How do I remove a sonotube form?

Strip: Sonotube Builders Tube concrete forms are designed to be left in place. Should you desire to strip the forms, be sure to use a reliable release agent before pouring the concrete. Remove the forms as soon as possible after a 24-hour curing period. Cut the forms vertically, using a knife or power saw.

What can I use as a release agent for concrete?

Castor oil, or petroleum jelly thinned with kerosene, also are good release agents. Concrete forms, even if they are ground, smoothed and polished, require a release agent to prevent sticking and enable easy stripping. Light colored petroleum oils or oil emulsions or various types have been used successfully.

How long do concrete piers need to cure?

Allow the concrete to cure for one day before constructing your deck or placing heavy weight on the footing (if standard concrete mix was used, wait about 3 days to begin construction).

How tall can a sonotube be?

If stripping above ground is desired, use a releasing agent before pouring the concrete and remove as soon as the concrete is set. Sonotube Builder’s Tube concrete forms should not be used with mechanical vibrators. Available in 6″, 8″, 10″ and 12″ diameters in standard lengths of 4′, 8′ and 12′.

How many yards of concrete do I need for a 24x24 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 many bags of concrete do I need for a 10x10 slab 4 inches thick?

At 4″ thick, your 10 x 10 slab will take 56 bags of concrete that weigh 80 lbs.

How many bags of concrete do I need for a 12x12 slab?

As per calculation, for a 12×12 slab at 4 inch thick, generally you will need approximately either 104 bags of 60lb or 80 bags of 80lb of premixed concrete, at 5 inches thick slab, either 131 bags of 60lb or 100 bags of 80lb premixed concrete are required, while at 6 inches thick slab, either 157 bags of 60lb or 121 …

How thick does a concrete slab need to be?

Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.

How do you get a square foot?

To calculate feet squared (or sq. ft. for short), determine the length and width of the area you are working with, measured in feet. Multiply the length by the width and you’ll have the square feet.

How much does a 24x30 concrete slab cost?

A 24×30-foot slab covers 720 square feet. With an average price of $6 per square foot, you may pay about $4,320 for a slab foundation. However, the price can range from $4 to $8 per square foot, resulting in a total cost between $2,880 and $5,760.

Do deck piers need footings?

Large decks that are attached to the house should always have footings because they act to spread the heavy load of the deck from the surface of a support post over a large surface of the soil so the ground can adequately support it. … The footings ensure that the deck will not fall, tip or rot away after a few years.

How big should a footing be for a 6x6 post?

3. 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”.

How do you build a deck without digging holes?

If you’re ready to start planning, there are two great options to build a deck without digging any holes: surface deck blocks and deck foot anchors. The cheapest foundations are deck blocks, which can be purchased for less than $12.00 a piece. Deck blocks sit on the ground, so proper planning is essential.

How many 50lb bags of concrete make a yard?

The number of bags you need will vary depending on the type of concrete mix you choose for your project. If you’re using 50lb bags of concrete, you’ll need 72 bags to make a yard.

How many 50lb bags of concrete are on a pallet?

You should also get familiar with working with some specialty mixes because they really come in handy. 64 bags of 50 lb. concrete come on a pallet. Check with your local store before ordering to confirm the amount of bags you’ll get per pallet.

How much does an 80 pound bag of quikrete cover?

30 cubic feet, 60 pounds of concrete mix yields . 45 cubic feet and an 80-pound bag yields . 60 cubic feet.

How much does a sonotube weigh?

Product No.DiameterWeightSPK SON 06X1446 in8.4 lbsSPK SON 08X1448 in12.0 lbsSPK SON 10X14410 in18.0 lbsSPK SON 12X14412 in21.6 lbs