Reinforced Concrete Wall Rebar Spacing Chart

2 5 clear to strength steel 5 12 rather than the designed 5 10 bending strength of the section has been reduced by about 16.

Reinforced concrete wall rebar spacing chart.

Exact spacing width 16 middle space 10 total bar length 416 9 ft including 10 waste lap. There are many variables that influence the decision of how much space to leave including the maximum load the slab is likely to have to support the bearing capacity of the soil the diameter of the reinforcing rebar the likelihood of frost heaving the slab and whether or not the slab is on a level grade. Somewhere we saw a picture of a wall chart showing rebars full size and giving handy reference information. There s no generally accepted rule of thumb as to how to space rebar in a concrete slab.

If your wall is over 40 feet long it will add 2x the amount of overlap required. If your wall is over 20 feet long it will add the amount of overlap required. The length of a lap splice varies with concrete strength type of concrete the yield strength grade of the reinforcing bars bar size bar spacing concrete cover and the amount of ties or stirrups. Calculate the amount of rebar needed for reinforcing a wall.

Where can we get one. The concrete reinforcing steel institute 180 north lasalle street chicago lilinois 60601 publishes such a chart 30 by 60 inches which they sell for 5 00 prepaid. This calculator assumes that you are using 20 foot long lengths of rebar.