Grilage or Grillage: How To spell?
The word Grilage is misspelled against Grillage, a noun meaning "A framework of sleepers and crossbeams forming a foundation in marshy or treacherous soil."
Grillage has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings gri & age which should not be misspelled with single 'L'
Wrong Spelling:  gri-l-age  Correct Spelling:  gri-ll-age 
Find more wrongly spelled words of Grillage to spell it well.