Estimate Rebar Concrete Slab

This is needed to determine both the lengths of the rebar and how many rows and columns are needed.

Estimate rebar concrete slab.

Click the button to calculate the volume of concrete and man hours not including mixing needed for this job. Add in walls and columns. Rebar calculator slab driveway or patio calculate the amount of rebar reinforcement needed for slabs and drive ways. Work out the steel per m2.

First work out your slab area. Input length width and depth of the area. Calculate rebar spacing layout and weight in a concrete slab. Subtract the clearance from the length and width to find the dimensions of the grid.

Multiply the steel per m2 x your slab area. For example if the slab is 10 x 10 and the clearance is 3 the size of the rebar grid will be 9 6 x 9 6. Regardless of what the particular format might be the procedure is generally the equivalent. Start by multiplying each of those measurements by 12 to get your dimensions in inches which in this case would be 240 inches by 360.

Calculating what you need for the sake of easy examples assume you re pouring a slab that s a simple rectangle of 20 by 30 feet and you ve figured out that you ll need the rebar set at 14 inches on center. Calculate optimal rebar spacing and weight for concrete slabs. Interactive scaled diagrams inch. Total length total width bar spacing exact spacing equal spacing adjusted edge clearance bar size.

The grid is the horizontal and vertical spacing of your rebar.