SLATS is a playable word

slat Scrabble® Dictionary

verb
slatted, slatting, slats
to provide with slats (narrow strips of wood or metal)
25 Playable Words can be made from "SLATS"
   2-Letter Words (5 found)
   3-Letter Words (9 found)
   4-Letter Words (8 found)
   5-Letter Words (3 found)