The word Scruboard is misspelled against Scrubboard, a noun meaning "A baseboard; a mopboard."
-->
Scrubboard has double "bb" is mispronounced as "b"
Remember double 'BB' in between the strings Scru & oard which should not be misspelled with single 'B'
Wrong Spelling:  Scru-b-oard 
Correct Spelling:  Scru-bb-oard 
Check more misspelled words of Scrubboard to spell it correct.