Slab Thickness Determination

After you input values in the design criteria tab. You will need to determine slab thickness using a separate tab in spreadsheet. A structural framing plan is required here. You will notice the rebar strength values from design criteria tab is linked here. Assume a beam width which is conservative to determine thickness. Remember that slab takes one of the most volume of concrete in building. Thus, it needs to be determine early on because having a large depth will cost a lot. Observe that just input type of span and a clear span will be determined and required thickness for one way slab. 

 

For two way slab, input long and short direction span then required thickness will be determined.