There are 14 words that start with 'sheet'.
sheet | sheets | sheeted |
sheeter | sheeters | sheetfed |
sheeting | sheetings | sheetless |
sheetlike | sheetrock | sheetrocks |
sheetrocked | sheetrocking | |
Note: These 14 words that start with 'sheet' are found from the USA & Canada version of the tournament Scrabble word list.