castellated beam

16 LETTERS · STARTS WITH C

castellated beam is a valid 16-letter word worth 22 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3A1S1T1E1L1L1A1T1E1D2B3E1A1M3

3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 3 + 1 + 1 + 3 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does castellated beam mean?