Rebar Chairs

Rebar Chairs Collection: Top-Quality Concrete Spacers

Rebar Chairs are a time-tested solution for all your concrete reinforcement needs. They provide reliable support and spacing for your rebar, ensuring proper concrete cover and alignment…Read more.

Whether you're a professional contractor or a DIY enthusiast, Certified MTP is committed to providing high-quality concrete spacers designed to meet all your concrete project needs. 

Explore the features of our collection of the most popular, top-quality concrete spacers below or shop Certified Material Testing Products for other concrete support tools.

3in Rebar Spacer Wheels For 3-6 Bar (120/Ct)

Hercules 911, 1-1/2 In. Rebar Chair (50-Pack)

Rebar Impalement Safety Cover Protection For Rebar #3-#8 (100/Ct)

Dayton Superior HC Rebar Individual High Chair, 2" Plastic Dipped (Case Of 100) 

Hercules 924 Rebar Footer 3-Bar Chair (30-Pack)

Advantages of Rebar Chair 

The rebar chair or rebar holder helps keep the rebar in place when you're pouring concrete during construction. 

Some of the advantages of using a rebar chair, sometimes called rebar seats, includes:

  • It makes concrete more resistant to failure by several times.

  • It gives your project tensile strength, allowing it to last much longer.

  • It provides far better support to hold rebar and for structural concrete structures than any other conventional alternative, including reinforcing fiberglass, steel wires, or wire tying.

Rebar Chair And Other Concrete support Accessories

For all of your rebar projects, Certified MTP has support systems for many different concrete applications. Our 2-inch rebar chair is the most popular choice for construction projects. In addition, we offer every elite brand manufactured in the US, such as Deslauriers, Paragon Products, Dayton Superior, Hercules, Mako, Lotel, LTM Concrete, and Rebar Support Products.

Unibar Centralizer

A unibar centralizer supports cage alignment for concrete or steel reinforcement. Typically made of non-corrosive plastic, these durable tools are used to achieve proper design strength and ensure quality during construction.

Steel Plated Rebar Cap

Made to fit all rebar sizes, rebar caps are used to comply with safety requirements and local construction regulations. Plastic caps are placed on the end of vertical rebar and other exposed areas plastic construction, to protect workers from abrasions, cuts, and other injuries.

Rebar Spacer Wheel For Wire Mesh And Wire Tying

In concrete applications, where vertical concrete armchair is used, spacer wheels keep the rebar in the center of the area where the concrete will be poured. Rebar spacer wheels are often made from metal and are essential in keeping wire mesh and rebar in place for concrete wall reinforcement.

FAQs about Rebar Chairs:

Have questions about the right rebar chair and its usage? You're in the right place. Below, you'll find answers to some of the most asked questions professionals like you want to know.

What is rebar spacing used for when concreting?

The rebar is laid in a grid format, and spacing ensures the even distribution of reinforcing steel reinforcement, preventing cracks and structural weaknesses in your concrete project. This is why the rebar chair is sometimes called a concrete bar stool.

What material is used in making rebar spacers?

The materials used in making rebar spacers can be divided into three raw categories:

Concrete spacers
Plastic spacers
Metal spacers
Deck footing rebar

Plastic spacers are utilized more frequently because they are corrosion-resistant and more affordable.

What Are Rebar Chairs Used For?

The rebar chair, also known as rebar support and concrete bar, is specially designed components for securing the pouring and holding embedded reinforcement bars in place as fresh concrete is poured and cured.

They come in many shapes and sizes. They are commonly used in:

Roads and highways
Natural cement

Is a rebar chair really necessary?

The rebar chair is crucial for holding rebar above the ground during construction. They provide stability, ensure optimum concrete flow when it is poured in, and reduce the job time. This helps ensure the structural integrity and longevity of the concrete structure.

Are there different types of rebar chairs available, and how do I choose the right one?

Different types of commercially available rebar chairs exist, including the standard rebar chair, rebar chairs menards, bar stool, or concrete bar, tip or round cap, plastic rebar chair spacers, the multi-level rebar chair, etc. The right one for your project will depend on several factors, including the surface type underneath the concrete, the type of concrete formwork, and the project design specifications.

What number of chairs do I need for rebar?

The amount of rebar chairs needed will depend on the project. As a best practice, space them about 2 to 3 feet apart alongabout half the length of the rebar.

Does the rebar size or bar stools that I use matter?

Yes, rebar size matters as it influences the type and size of the rebar chair you need for your project. If you require more strength, you will need bigger pieces of rebar.

To learn more, read: How to Measure Rebar Diameters.

Does a rebar chair have a weight capacity limit for supporting rebar?

The rebar chairs has weight capacity limits based on their design and material. Exceeding these limits may compromise their effectiveness. Please read through our product specifications for guidance when making a selection.

How do I determine the appropriate size of a rebar chair for my project?

To determine the correct size of a rebar chair, you first need to determine the weight the chair bar will support from the upper reinforcement layer. Typically, the diameter of the reinforcement bars on a rebar chair is taken above 12mm. Refer to engineering guidelines and product information for proper sizing.

What is the appropriate rebar chair spacing?

The appropriate rebar chair spacing varies depending on your specific project specification, rebar size, and load requirement. Only laborers skilled in reinforcing steel placement should install rebar chairs. Nevertheless, on average, allow for one chair for each square meter.

To learn more, read: Concrete Testing: Rebar Spacing and Mesh Spacing.

Are there specific installation guidelines for rebar chairs?

There are specific guidelines to adhere to if you want to install rebar chairs properly. Hence, only workers skilled in rebar chair installation in concrete footings should install rebar chairs in order to achieve effective structure.

What are the advantages of using plastic rebar chairs over metal ones?

Industries all over are realizing the advantages of using plastic rebar chairs over metal bars for concrete reinforcement. There are many reasons to choose a plastic rebar chair over pouring concrete over metal ones, including:

Quick and convenient implementation
Low cost per unit
High strength
Secure footing
Counter stools

Keep your projects ahead of schedule and under budget with plastic rebar chairs. These rebar supports are stackable for deeper concrete slabs and strong enough for workers to stand on during pours. Discard metal rebar chairs for cost-saving durability with plastic rebar chair supports.