Answer: oaktag

AnswerCrossword Clue
OAKTAG

Sturdy paper

OAKTAG

School poster paper

OAKTAG

Strong cardboard

OAKTAG
Poster material, often
OAKTAG
School poster material
OAKTAGPoster cardboard
OAKTAGPoster material
OAKTAGPoster stock
OAKTAGArt supply store stock
OAKTAGPoster board