Rebar Weight Calculator for Construction Projects
Accurate rebar weight calculations are essential for project planning, cost estimation, and logistics. Whether you're reinforcing a foundation, slab, or structural column, knowing the exact weight of your reinforcing steel helps with transportation planning, crane load calculations, and material budgeting.
Standard Rebar Sizes and Weights
Rebar comes in standard sizes designated by numbers (#3 through #11). The number corresponds to the diameter in eighths of an inch. For example, #4 rebar has a diameter of 4/8" (1/2 inch). Each size has a specific weight per linear foot that our calculator uses for precise calculations.
Common Rebar Applications
- #3 Rebar: Light duty, walkways, small slabs
- #4 Rebar: Residential foundations, slabs, driveways
- #5 Rebar: Commercial slabs, light structural
- #6 Rebar: Structural beams, columns, heavy foundations
- #8+ Rebar: Heavy structural, commercial buildings, bridges
Why Rebar Weight Matters
Understanding rebar weight is crucial for several reasons. First, shipping and handling costs are often based on weight. Second, crane capacity must be calculated for lifting rebar bundles to upper floors. Third, concrete pour planning requires knowing the total steel weight to ensure proper concrete coverage and structural capacity.
Rebar Spacing and Quantity
The amount of rebar needed depends on your project's structural requirements. Typical spacing ranges from 12 to 24 inches on center. Our calculator helps you determine the total linear footage and weight once you know your spacing pattern and slab dimensions.