Does Red Rhino have pre-built assemblies?

Yes. Several thousand of them.

Categories of Rhino Assemblies for Residential

Assembly Catalog

100 - Residential - Romex & Plastic Boxes

30.10 - Receptacles

30.15 - Switches

30.20 - Lighting - Clng fan - Smoke Det - Bath fan

30.30 - Low Voltage - Doorbell

30.40 - Panels & Home Runs

30.50 - Dryer - Hot Water - Range - Oven - AC

Categories of Rhino Assemblies for Commercial

200 - Commercial / Industrial

10 - Fixtures

12 - Switches

13 - Dimmers

14 - Receptacles

15 - Twist Lock Receptacles

15.5 - 4 Inch Square Boxes

16 - 4-11/16 Inch Boxes

16.5 - Cut-In Boxes

17 - Surface Mount 4" Boxes W/Industrial Covers

18 - Safety Switch / Disconnect

19 - Motor Connections

20 - Risers From PVC Stubs to Bottom Of Panel

40 - Transformer

55 - Phone/ Data Stub up

60 - Floor Boxes

70 - Fire Alarm

Categories of Rhino Assemblies for Structured Cabling / Low Voltage

300 - Structured Cabling Systems

50.01 - Horizontal Stations

50.02 - Closet Build-outs

50.03 - Indoor Backbone/ Riser

50.04 - Outdoor Backbone/ OSP

50.05 - Misc Items