Safety Basketball Master Board (Framed). Available in 4 sizes: 24x36, 18x24, 11x17, 8 1/2x11. If you would like a custom board set up, please select custom board option and upload images, please provide specifications in comments section. Contact [email protected] for any questions, changes, or comments. Master board is used as communication to the employees: To view daily number, which game you're on, prize and date.