There are 15 words that start with 'sled'.
| sled | sleds | 
| sledge | sledded | 
| sledder | sledged | 
| sledges | sledders | 
| sledding | sledging | 
| sleddings | sledgehammer | 
| sledgehammers | sledgehammered | 
| sledgehammering | |
Note: These 15 words that start with 'sled' are found from the USA & Canada version of the tournament Scrabble word list.