Number 4 rebar, a common reinforcement bar used in concrete construction, has a specific diameter and corresponding weight. Understanding its dimensions is crucial for engineers, contractors, and anyone involved in building projects. This guide will clarify the size and other important characteristics of #4 rebar.
What is the Diameter of #4 Rebar?
The diameter of #4 rebar is ½ inch (0.5 inches or 12.7 mm). This seemingly small detail is fundamental in structural calculations and material ordering. This consistent size ensures predictable strength and structural integrity in reinforced concrete structures.
What is the Weight of #4 Rebar per Foot?
A #4 rebar weighs approximately 0.668 pounds per linear foot. This weight is important for estimating material costs and transportation needs on construction sites. Remember that this is an approximate weight and can vary slightly based on the manufacturer and steel alloy used.
How Much Does a #4 Rebar Weigh?
The weight of a #4 rebar depends on its length. Since it weighs 0.668 lbs per foot, a 20-foot length would weigh approximately 13.36 lbs (0.668 lbs/ft * 20 ft). Always double-check weights with your supplier, as slight variations may exist.
What are the Uses of #4 Rebar?
#4 rebar finds application in a variety of construction projects, including:
- Residential foundations: Providing reinforcement to slabs, footings, and walls.
- Driveways and patios: Enhancing the durability and crack resistance of concrete surfaces.
- Small retaining walls: Adding structural support and stability.
- Fence posts: Reinforcing the concrete base for increased strength and longevity.
Its relatively small diameter makes it suitable for applications where smaller reinforcement is needed, while still providing adequate strength for its intended purpose.
How Do I Identify #4 Rebar?
#4 rebar, like other rebar sizes, is usually marked with its size number (#4) along its length. This marking allows for easy identification on the construction site. If the markings are unclear or absent, use a caliper or measuring tape to verify the diameter.
What are the Different Sizes of Rebar?
Rebar comes in various sizes, numbered from #2 to #18, each with its own diameter and weight. The size number directly correlates with the diameter, meaning a larger number represents a larger diameter and, consequently, greater strength. #4 is one of the more commonly used sizes for various residential and smaller commercial projects due to its balance of strength and manageability.
Where Can I Buy #4 Rebar?
#4 rebar can be purchased at most building supply stores, construction material suppliers, and online retailers. Always check for quality certifications and ensure the rebar meets the required specifications for your project. Remember to accurately calculate the amount needed based on your project's plans to avoid over or under ordering.
This comprehensive guide aims to provide a thorough understanding of #4 rebar size, weight, and applications. While this information is generally accurate, always consult relevant building codes and specifications for your specific project location and requirements.
