The grid is the horizontal and vertical spacing of your rebar.
Estimate rebar concrete slab.
First work out your slab area.
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 rebar spacing layout and weight in a concrete slab.
Calculate optimal rebar spacing and weight for concrete slabs.
Click the button to calculate the volume of concrete and man hours not including mixing needed for this job.
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.
Interactive scaled diagrams inch.
Add in walls and columns.
This calculator is to be used as an estimating tool only.
Say 15m x 20m for simplicity as an example.
Layout of rebar for concrete slabs to estimate the quantity of rebar in slab to strengthen concrete slabs you ll have to assess the required measure of rebar for your two dimensional shape.
Subtract the clearance from the length and width to find the dimensions of the grid.
Rebar calculator slab driveway or patio calculate the amount of rebar reinforcement needed for slabs and drive ways.
Input length width and depth of the 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.
Work out the steel per m2.
Regardless of what the particular format might be the procedure is generally the equivalent.