Shetfuls or Sheetfuls: How To spell?
The word Shetfuls is misspelled against Sheetfuls, which is plural of "Sheetful"
Sheetfuls has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings Sh & tfuls which should not be misspelled with single 'E'
Wrong Spelling:  Sh-e-tfuls  Correct Spelling:  Sh-ee-tfuls 
Check more misspelled words of Sheetfuls to spell it correct.