What exactly is builder''s sand? | BackYard Chickens
Jun 08, 2014· Home Forums > Raising BackYard Chickens > Coop Run Design, Construction, Maintenance > What exactly is builder''s sand? Discussion in ''Coop Run Design, Construction, Maintenance'' started by Carrie Lynn, Jun 21, 2011. Most Liked Posts. Jun 21, 2011 Post #1 of 9.