Calculation No.  
CALCULATION SHEET Project No.  
            onlinestructuraldesign.com
Project Title:   Calc. By Date Rev.
                 
Subject/Feature:   Ckd. By Date  
                 
                       
Input  Output          
Number of reinforcement bars Total reinforcement area          
Bar size no. of rebar          
Required reinforcement area            
                       
Required area (in2)                  
                       
 Cross sectional area of number of bars (in2)  
BAR SIZE Number of bars  
1 2 3 4 5 6 7 8 9  
 
 
 
 
 
 
 
 
 
 
 
 
 
                       
 Cross sectional area of bars per feet (in2/ft)          
 BAR SIZE Bar spacing (in)          
2 3 4 6 12