Toggle Filters Room Type AnyMeeting Room Library Branch All BranchesMain LibraryMastic Beach BranchMoriches BranchOff SiteOnline Program Mastic Beach Branch Adult Program Room Mastic Beach Branch Maximum Capacity: 16 Small private room with smartboard. Room Details Lobby Room 1L Mastic Beach Branch Maximum Capacity: 11 Glass-walled room in the lobby, directly across from the front desk. Room Details Lobby Room 2R Mastic Beach Branch Maximum Capacity: 11 Glass-walled room in the lobby, directly across from the front desk. Room Details Lobby Rooms Combined Mastic Beach Branch Maximum Capacity: 22 Glass-walled room in the lobby, directly across from the front desk. Room Details Moriches Branch Adult Room 1L Moriches Branch Maximum Capacity: 17 Glass-walled room in the back of the Adult Department. Room Details Adult Room 2R Moriches Branch Maximum Capacity: 18 Glass-walled room in the back of the Adult Department. Room Details Adult Rooms Combined Moriches Branch Maximum Capacity: 35 Full-sized room with one glass wall at the back of the Adult Department. Room Details Teen Room 1L Moriches Branch Maximum Capacity: 18 Divided room with glass wall at the back of the Teen Department. Room Details Teen Room 2R Moriches Branch Maximum Capacity: 18 Divided room with one glass wall at the back of the Teen Department. Room Details Teen Rooms Combined Moriches Branch Maximum Capacity: 36 Full-sized room with glass wall at the back of the Teen Department. Room Details