Rebar Calculator
Slab length
ft
inch
m
Slab width
ft
inch
m
Grid spacing
inch
cm
18 in for a patio, 12 in for a drive, 6–8 in for a footing or a loaded slab.
Bar size
#3 — 3/8 in, 0.376 lb/ft
#4 — 1/2 in, 0.668 lb/ft
#5 — 5/8 in, 1.043 lb/ft
#6 — 3/4 in, 1.502 lb/ft
Clear cover at the edges
inch
cm
ACI 318 asks for 3 in where concrete is cast against ground.
Total bar length
464 ft
Show the work
Rebar Calculator
by Rule Calculator