First Floor Description Class A Office Space For Lease located in downtown Wausau over viewing the Wisconsin River. First Floor 20,120 SF. May be divisible into smaller suites. All office furniture and cubicles included. Security system, reserved municipal parking ramp. Additional office space available 22,656 SF on Third Floor. Third Floor Description Class A Office Space For Lease located in downtown Wausau over viewing the Wisconsin River. Third Floor 22,656 SF. May be divisible into smaller suites. All office furniture and cubicles included. Security system, reserved municipal parking ramp. Additional office space 20,120 SF on First Floor.