Choose between raceway-mounted and direct channel-letter mounting based on code and landlord criteria

Steps

1. Confirm whether the local electrical/building code requires wiring to be enclosed (favoring a raceway) versus allowing direct-mount channel letters with concealed wiring run through the wall, since this affects which mounting method is even permitted
2. Check the landlord's or property manager's sign criteria package (common in shopping centers and multi-tenant buildings) for a stated preference or requirement — many require raceway mounting specifically to avoid wall penetrations and simplify future tenant sign changes
3. Confirm structural attachment requirements for the chosen method (fastener type/spacing into the specific wall substrate) meet both code and any landlord-specified minimums
4. Evaluate the aesthetic tradeoff with the landlord/architectural reviewer, since a visible raceway is often restricted or prohibited in more design-sensitive storefront criteria even where code would allow it
5. Confirm disconnect and dedicated-circuit wiring (NEC Article 600) can still be met cleanly with the chosen mounting method before finalizing the design