Estimate Rebar Concrete Slab

Interactive scaled diagrams inch.

Estimate rebar concrete slab.

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. Total length total width bar spacing exact spacing equal spacing adjusted edge clearance bar size. Multiply the steel per m2 x your slab area. Work out the steel per m2.

This calculator is to be used as an estimating tool only. Regardless of what the particular format might be the procedure is generally the equivalent. Subtract the clearance from the length and width to find the dimensions of the grid. This is needed to determine both the lengths of the rebar and how many rows and columns are needed.

Click the button to calculate the volume of concrete and man hours not including mixing needed for this job. Calculate optimal rebar spacing and weight for concrete slabs. Calculate rebar spacing layout and weight in a concrete slab. Say 15m x 20m for simplicity as an example.

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. Add in walls and columns. Rebar calculator slab driveway or patio calculate the amount of rebar reinforcement needed for slabs and drive ways. The grid is the horizontal and vertical spacing of your rebar.

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.