Concrete Strengths
Rebar
Average Rebar Weights
Welded Wire Mesh
Pan Slabs
Slab Flatness and F-numbers
Average Reinforcing Bar Weights in Typical Concrete Applications
Caissons (belled or straight shaft)
12” diameter 40 lbs/lnft average with a range of 20 to 60 lbs/lnft
24” diameter 150 lbs/lnft average with a range of 90 to 210 lbs/lnft
36” diameter 350 lbs/lnft average with a range of 280 to 435 lbs/lnft
5’ diameter 1,000 lbs/lnft average with a range of 785 to 1,310 lbs/lnft
6’ diameter 1,500 lbs/lnft average with a range of 1,200 to 1,850 lbs/lnft
8’ diameter 2,500 lbs/lnft average with a range of 2,015 to 3,165 lbs/lnft
10’ diameter 4,000 lbs/lnft average with a range of 3,200 to 5,000 lbs/lnft
12’ diameter 5,650 lbs/lnft average with a range of 4,380 to 7,150 lbs/lnft
Ductbanks
25 to 110 lbs/cuyd
5 to 25 lbs/lnft (this varies widely depending on the size of the ductbank)
Paving
2 lbs/sqft (no. 4 rebar mat)
3 lbs/sqft (no. 5 rebar mat)
4.5 lbs/sqft (no. 6 rebar mat)
Exterior steps
40 to 80 lbs/cuyd
Cantilevered retaining walls
Non-cantilevered (straight) retaining walls use anywhere from 35 to 250 lbs/cuyd
Here’s an index to typical rebar use depending on cantilevered wall size
Walls with 1 face of rebar (1 layer)
8" thick walls
Walls up to 7' high 56 lbs/cuyd
Walls 7' to 8' high 60
Walls 8' to 9' high 62
Walls 9' to 10' high 72
Walls 10' to 12' high 96
Walls 12' to 14' high 145
Walls 14' to 16' high not applicable
Greater than 16' high not applicable
10" thick walls
Walls up to 7' high 54 lbs/cuyd
Walls 7' to 8' high 54
Walls 8’ to 9’ high 54
Walls 9' to 10' high 59
Walls 10' to 12' high 72
Walls 12' to 14' high 100
Walls 14' to 16' high not applicable
Greater than 16' high not applicable
12" thick walls
Walls up to 7' high 54 lbs/cuyd
Walls 7' to 8' high 54
Walls 8' to 9' high 54
Walls 9' to 10' high 54
Walls 10' to 12' high 62
Walls 12' to 14' high 78
Walls 14' to 16' high 96
Greater than 16' high 102
Greater than 12" thick
Walls up to 7' high 49 lbs/cuyd
Walls 7' to 8' high 49
Walls 8' to 9' high 49
Walls 9' to 10' high 49
Walls 10' to 12' high 49
Walls 12' to 14' high 56
Walls 14' to 16' high 67
Greater than 16' high 81
Walls with 2 faces of rebar (2 layers)
8" thick walls
Walls up to 7' high 115 lbs/cuyd
Walls 7' to 8' high 119
Walls 8' to 9' high 121
Walls 9' to 10' high 131
Walls 10' to 12' high 155
Walls 12' to 14' high 204
Walls 14' to 16' high not applicable
Greater than 16' high not applicable
10" thick walls
Walls up to 7' high 102 lbs/cuyd
Walls 7' to 8' high 102
Walls 8' to 9' high 102
Walls 9' to 10' high 107
Walls 10' to 12' high 120
Walls 12' to 14' high 149
Walls 14' to 16' high not applicable
Greater than 16' high not applicable
12" thick walls
Walls up to 7' high 94 lbs/cuyd
Walls 7' to 8' high 94
Walls 8' to 9' high 94
Walls 9' to 10' high 94
Walls 10' to 12' high 102
Walls 12' to 14' high 118
Walls 14' to 16' high 136
Greater than 16' high 142
Greater than 12" thick
Walls up to 7' high 81 lbs/cuyd
Walls 7' to 8' high 81
Walls 8' to 9' high 81
Walls 9' to 10' high 81
Walls 10' to 12' high 81
Walls 12' to 14' high 99
Walls 14' to 16' high 99
Greater than 16' high 113
Continuous footings, stepped footings and sloped footings
5 to 25 lbs/lnft
25 to 110 lbs/cuyd
Grade beams
7.5 to 35 lbs/lnft
5 to 26.75 lbs/sqft
40 to 132 lbs/cuyd
SOG
1.5 to 4.75 lbs/sqft
94 to 165 lbs/cuyd
Walls
0.5 to 4.5 lbs/sqft
35 to 250 lbs/cuyd
Beams
1’ to 10’ in length 170 to 200 lbs/cuyd
10’ to 16’ 210 to 240
16’ to 20’ 185 to 215
20’ to 26’ 200 to 230
longer than 26’ 185 to 220
Columns
210 to 530 lbs/cuyd
Supported slabs
2.25 to 6.75 lbs/sqft
85 to 155 lbs/cuyd
Slab over metal deck
2.08 to 4.15 lbs/sqft
98 to 140 lbs/cuyd
Pits and trenches
50 to 70 lbs/cuyd
Tiltup panels
1.5 lbs/sqft