Choose between a security grille and a solid rolling door for a mixed-occupancy retail storefront opening.

Steps

1. Clarify the primary function needed: security grilles (open mesh/lattice) maintain visibility into the storefront for passive security/merchandising, while solid rolling doors provide full visual privacy, weather sealing, and typically higher physical security against forced entry.
2. Check whether the opening sits on a required means-of-egress path or in a fire-rated corridor/mall-front wall — if so, confirm the specific grille or door product is actually listed for that egress or fire-rated application (see the egress-conflicts and fire-shutter-testing routes) rather than assuming any commercial grille qualifies.
3. Confirm ADA/accessibility and visibility requirements for the storefront aren't compromised by whichever product is chosen, particularly in mixed-occupancy settings with shared common areas.
4. Evaluate operational needs — retail tenants often want daily open/close cycling (favoring durable, higher-cycle-rated hardware) versus occasional-use security applications.
5. Confirm the AHJ's specific requirement basis for the opening (life-safety, security, landlord lease terms) before finalizing, since 'mixed-occupancy' can trigger separation requirements that a grille alone does not satisfy.