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.