Concrete Reinforcement Areas - Metric


Reinforcement area in mm², for given number of metric bar sizes.
Number of Bars
Bar Dia. (mm)1234 5678910
628.356.584.8113141170198226254283
850.3101151201251302352402452503
1079157236314393471550628707785
1211322633945256567979290510181131
16201402603804100512061407160818102011
203146289421257157118852199251328273142
2549198214731963245429453436392744184909
32804160824133217402148255630643472388042
401257251337705027628375408796100531131012566


Reinforcement area in mm² per metre width, for given spacing of metric bar sizes.
Bar spacing (mm)
Bar Dia. (mm)75100125150 175200225250275300
6377283226.218816214112611310394.2
8670503402.1335287251223201183168
101047785628.3524449393349314286262
1215081131904.8754646565503452411377
16268120111608.5134011491005894804731670
20418931422513.32094179515711396125711421047
256545490939273272280524542182196317851636
3210723804264345362459640213574321729252681
40167551256610053.18378718162835585502745704189


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