Job Size function
This function returns the value of the Job size field from the Main tab of the Estimate Information window.
Syntax
JOBSIZE
Example:
IF (JOBSIZE LT 1000, 800.00, JOBSIZE * .80)
This would return a flat rate for a job less than 1000 square feet or calculate 
 a per unit rate for larger jobs.
Tip: Sage Estimating (SQL) 
 cannot determine which estimate contains the job size when you test a 
 formula by starting from the Database