How to Use a Concrete Form Tube

A concrete form tube is a cylindrical container made of heavy-duty paper or cardboard, used for pouring concrete in order to create a circular structure. To use the form tube, begin by measuring and cutting it to the desired length. Then dig a hole into the ground that is slightly larger than the circumference of your form tube.

Place the tube into the hole so that it stands upright on its own and then secure it with stakes or other materials if necessary. Next, fill up your form with sand until halfway full and tamp down firmly while ensuring there are no air pockets left behind; this will help prevent any shifting during the pour. Finally, add your wet concrete mix to the top of your form using either a bucket or some type of funneling device until it reaches capacity before tamping lightly one final time and allowing it to cure according to the manufacturer’s instructions.

  • Step 1: Purchase a concrete form tube from your local home improvement store
  • Make sure the size of the tube is appropriate for your project
  • Step 2: Place the form tube in an area that has been cleared and leveled
  • If necessary, use stakes to keep the tube in place while pouring concrete into it
  • Step 3: Cut open one end of the form tube with a saw or other cutting tool so you can pour concrete into it
  • Use safety equipment such as goggles and gloves when doing this step
  • Step 4: Mix up your desired amount of concrete according to package directions or hire professionals to do this for you if needed
  • Make sure you have enough material on hand before beginning this process since once mixed, it will need to be used quickly before hardening occurs
  • Step 5: Pour the wet mixture into the open end of the form tube until it is filled all way up to desired height (or make sure there are no air pockets)
  • You may want to tap along the sides of tubes with a rubber mallet during or after filling with a wet mix just in case any air pockets remain unaccounted for prior to the set time period elapses
  • Step 6: Smooth out the top portion of the newly poured mix using a flat trowel then give some finishing touches like adding decorative objects if required/desired by pressing them gently against a surface while still wet & spreadable (but not mushy)
  • Allow the entire structure 24 hours at least before attempting removal from its molding device – either slide off manually or use hammer-like tools cautiously depending on what type was used originally; always remember that fragile parts could easily break due to unnecessary force applied during the extraction process!
How to Use a Concrete Form Tube


Do You Leave Concrete Tube Forms in the Ground?

The answer to this question depends on the type of project that you are doing. If you are pouring a concrete slab, for example, it is generally recommended to leave the tube forms in place until after the slab has cured. This helps support the edges of the slab and prevents cracking or shifting during curing and drying.

However, if you are using concrete tubes as part of a retaining wall or other structure where they will be visible above ground when finished, it is usually best to remove them once their purpose is served so that they don’t detract from your overall landscaping design. Ultimately, leaving concrete tube forms in the ground should always be done with consideration given to both current and future needs; if removing them now may cause problems later down the line then it’s probably best not to do so.

How Do You Set a Concrete Tube Form?

Setting a concrete tube form is an important part of many construction projects, such as building foundations and retaining walls. To properly set a concrete tube form, you will need to start by preparing the area where the form needs to be placed. Make sure that the ground is level and free of debris so that no air pockets are present which can create unevenness in your finished product.

Once this has been done, it’s time to assemble your concrete tube forms. Start by placing them on their sides directly onto the prepared surface one at a time, making sure they fit tightly together like puzzle pieces before filling them with wet concrete mix. After all of your tubes have been filled up with mix, use a trowel or board screed tool to level off any lumps or bumps left behind from filling each individual tube section.

Finally, wait for 24-48 hours before removing the forms and exposing your beautiful new cement structure!

Do You Remove Sonotube After Concrete Sets?

When it comes to pouring concrete, sonotubes are an important tool. Sonotubes are essentially cardboard forms used to create a cylindrical shape in the ground before you pour concrete. But once the concrete has been poured and set, do you need to remove the sonotube?

The answer is yes! Removing the sonotube after your concrete sets is essential for many reasons. First of all, leaving a sonotube in place could cause water to pool around it and compromise the integrity of your foundation over time.

Secondly, leaving a tube behind can create an uneven surface which may prevent other building materials from fitting properly or being level with each other; this is especially true if you’re installing flooring or tile later on. Finally, removing a tube allows more oxygen into the soil beneath your foundation giving roots better access while also allowing any potential moisture build-up to dissipate more quickly than when confined by a tube wall. All in all, removing sonotubes after your concrete sets is key for keeping your project looking neat and professional as well as prolonging its lifespan!

How Far Should Sonotube Be Above Ground?

When it comes to determining how far a sonotube should be above ground, the most important factor is where and how the tube will be used. Generally speaking, if you are using a Sonotube for a concrete pier foundation, you want to make sure that the top of your tube is approximately 8 inches above grade. This ensures that water won’t pool around the base of your foundation and cause long-term stability issues.

If you plan on using a Sonotube as part of an outdoor seating arrangement or other permanent structure, then it’s best practice to leave at least 12 inches between the top of your tube and the finished grade level. Doing so gives enough space for air circulation during wet conditions or heavy rains when moisture can quickly become trapped underneath elevated structures like decks or seating areas. Ultimately, it’s important to consider what type of application you have in mind before selecting a height for your Sonotube project; doing so will help ensure long-term structural integrity and prevent potential damage from excessive moisture accumulation over time.

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6 Inch Concrete Form Tube

The 6-inch concrete form tube is an essential tool for any DIY home improvement project requiring the pouring of concrete. This form tube allows you to easily create a cylinder shape from your poured mixture, giving it a much more professional finish than free-form pours. The durable cardboard material makes it easy to work with and can be used multiple times if properly cared for, making this an economical choice for any homeowner looking to save money on their project.

Concrete Footing Tubes

Concrete footing tubes are pre-formed, cylindrical tubes that provide a solid foundation for construction projects such as decks and sheds. They are designed to be filled with concrete, creating an even base for the structure. The use of concrete footing tubes is becoming increasingly popular due to their ease of installation and cost savings compared to traditional poured footings.

Furthermore, they can help prevent soil erosion around your project since the walls of the tube act as a barrier between the surface area and any potential water runoff.

24″ Concrete Form Tube

The 24″ Concrete Form Tube is a great choice for creating round columns and other concrete forms. It can be used for footers, pillars, decks, and more. Made from heavy-duty cardboard material, it’s easy to cut and form into the desired shape.

The tube also features an internal steel ring that helps maintain its shape during the pouring process. This type of form tube is strong enough to support up to 3 feet of concrete in one pour!

Cardboard Concrete Form Tube

Cardboard concrete form tubes are cylindrical cardboard containers that provide a convenient and cost-effective way to create customized shapes for construction projects. These tubes can be filled with concrete, then removed once the concrete has set, leaving behind the desired shape. Cardboard form tubes are lightweight yet durable enough to keep their shape until ready for use, making them an ideal choice for any project requiring custom forms or molds.


Using a concrete form tube is an easy and cost-effective way to pour footings for posts, precast steps, and other types of structures. It is important to be aware that the quality of your results will depend largely on the proper use and placement of the form tube in order to ensure that it won’t collapse during the drying process. With a few simple tips and tricks, you can easily have a successful project that looks great when finished.

By following this guide, you should now have all the information necessary to get started with using concrete form tubes for your next project!

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