This device is designed to create a cavity for a beam. Different sizes available.
1670 Islip Ave. Brentwood, NY11717 Phone: (631) 273-3323
28 Mill Road Riverhead, NY11901 Phone: (631) 208-1630
70 Comsewogue Rd SUITE 9 Setauket-East Setauket, NY 11733 Phone: (631) 928-4665