Bar Dimensions

Selecting a bar size

The dimensions of reinforcement bars are stored in the Covermeter and include the following four standard bar series: Metric, US Bar, ASTM/Canadian and Japanese. Due to this wide selection of bar sizing, the Elcometer 331 Covermeters can be utilised worldwide with accurate results. When taking measurements for high tensile steel or Grades 304, 316 and Duplex Stainless Steel details for the Bar Grade and Bar size can be manually input into the Covermeter, or the gauge can be used in autosizing mode.

 

Autosizing and Orthogonal size function

Autosizing automatically calculates an estimate for the size of the rebar and the depth of cover. If this figure differs greatly from your expected rebar size, or you do not know the expected rebar size, the Orthogonal size function provides an accurate measurement of bar size. The step by step directions on the Covermeter make the accurate sizing of bars quick and easy.



Bar Size Dimensions
Metric US Bar ASTM/Canadian Japanese
Bar Size Diam. (mm) Bar Size Diam. (Inch) Bar Size Diam. (mm2) Bar Size Diam. (mm)
5 5 #2 0.250 10M 100 6 6
5.5 5.5 #3 0.375 15M 200 10 10
6 6 #4 0.500 20M 300 13 13
7 7 #5 0.625 25M 500 16 16
8 8 #6 0.750 30M 700 19 19
9 9 #7 0.875 35M 1000 22 22
10 10 #8 1.000 45M 1500 25 25
11 11 #9 1.125 55M 2500 29 29
12 12 #10 1.250 32 32
14 14 #11 1.375 35 35
16 16 #12 1.500 38 38
18 18 #13 1.625 41 41
20 20 #14 1.750 44 44
22 22 #15 1.875 48 48
25 25 #16 2.000 51 51
28 28 #18 2.250 57 57
32 32
36 36
40 40
44 44
50 50


Stainless Steal Bar Sizes

Bar sizes of stainless steel grades 304, 316 and Duplex can also be selected when using the THD model.