Self builder steel rebar sizes chart  

Steel rebar sizes

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Steel rebar sizes chart

 

U.S. rebar sizes:

Imperial bar designations represent the bar diameter in fractions of 1/8 inch, such that #8 = 8/8 inch = 1 inch diameter. Area = (bar size/9) 2 such that area of #8 = (8/9)2 = 0.79 inch. This applies to #8 bars and smaller. Larger bars have a slightly larger diameter than the one computed using the 1/8 inch convention.
steel rebar sizes
 
Imperial

Bar Size

"Soft"

Metric Size

Weight

(lb/ft)

Weight

(kg/m)

Nominal Diameter

(in)

Nominal Diameter

(mm)

Nominal Area

(in²)

Nominal Area

(mm²)

#3 #10 0.376 0.561 0.375 = 3/8 9.525 0.11 71
#4 #13 0.668 0.996 0.500 = 1/2 12.7 0.20 129
#5 #16 1.043 1.556 0.625 = 5/8 15.875 0.31 200
#6 #19 1.502 2.24 0.750 = 3/4 19.05 0.44 284
#7 #22 2.044 3.049 0.875 = 7/8 22.225 0.60 387
#8 #25 2.670 3.982 1.000 = 8/8 25.4 0.79 509
#9 #29 3.400 5.071 1.128 28.65 1.00 645
#10 #32 4.303 6.418 1.270 32.26 1.27 819
#11 #36 5.313 7.924 1.410 35.81 1.56 1006
#12 #40 6.424 9.619 1.50 38.1 1.76 1140
#14 #43 7.650 11.41 1.693 43 2.25 1452
#18 #57 13.60 20.284 2.257 57.33 4.00 2581
 
European steel rebar sizes: Metric bar designations represent the nominal rebar diameter in millimetres. Bars in Europe will be specified to comply with the standard EN 10080. Unit weights for rebar or reinforcing bar length 11,75 meters. Rebar weight table for reinforcing bars from 5, 5 mm to 32 mm.
 

  rebar size
(mm)

1 meter rebar weights (kg)

1 rebars weights 11,75 m (kg)

length for 1 tonn of steel rebars

5,5 0,187 2,19 5347
6,0 0,222 2,60 4504
8,0 0,395 4,64 2531`
10,0 0,617 7,25 1620
12,0 0,888 10,43 1126
14,0 1,210 14,21 826
16,0 1,580 18,56 633
18,0 2,000 23,50 500
20,0 2,470 29,00 405
22,0 2,980 35,00 335
25,0 3,850 45,23 260
28,0 4,830 56,75 207
32,0 6,310 74,14 158
 

Steel reinforced bar concrete beam formula

There are four main rules for steel reinforced concrete beams:
1. To count the height of the reinforced concrete beam devide the gap length by 20. For example: the gap is 4 meters. The minimum height of the concrete beam should be 4 / 20 = 0,2 meter

2. To count the width of the concrete beam: Multiply the height by 5 and devide by 7. For example: the beam height is 0,2 meter. 0,2 x 5 / 7 = 0,14 m.

3. The beam should be enforsed with at least 4 steel re bars d12-14 in two levels.

4. The concrete should be applied all volume at once without big waiting gaps.

Dicslaimer: all re bar information provided at that page are for private use only and should be verified by the certified engineer in each case of construction.

 
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