Hardware is the highest-failure-frequency component on a commercial storefront system. The frame and glass typically outlast the first hardware set by years. Getting hardware selection right at design — correct exit device type, closer power size, pivot model, ADA compliance — prevents premature replacement, failed inspections, and occupant complaints. This guide covers the Allegion hardware families ACG specifies on commercial storefront, applicable ANSI standards, ADA requirements, and automatic operator integration.
Commercial storefront hardware must comply with several overlapping code and standard requirements. Understanding which standards apply helps architects and GCs write complete hardware specifications and avoids code-review comments during permit.
| Standard | Scope | Key Requirements |
|---|---|---|
| ANSI A156.3 | Exit devices (panic hardware) | Grade 1 commercial duty, minimum cycle life, force to activate, UL listing for fire-rated applications |
| ANSI A156.4 | Door closers | Grade 1 duty, closing force, power size range, backcheck and latching |
| ANSI A156.10 | Power-operated swing doors (automatic operators) | Activation sensor types, safety stop force, manual operation fallback |
| ANSI A156.19 | Power-operated pedestrian doors (auto sliding) | Obstruction detection, kinetic energy limits at door edge, access control integration |
| ADA Standards 2010 §404 | Accessible doors and doorways | 5 lbs max opening force (interior), 1/2" max threshold height, lever or push/pull hardware (no tight grasping), 32" clear opening minimum |
| FBC / IBC Chapter 10 | Means of egress | Panic hardware required on assembly occupancies (50+ persons), unlatching force limits, egress path clear width |
Von Duprin, an Allegion brand, is the standard exit device specification on ACG commercial storefront projects. Von Duprin panic exit devices are required on egress doors in occupancies where panic hardware is mandated by code (assembly, educational, and high-occupancy retail and commercial), and may be specified in other occupancies as a design choice for their ease of egress use.
The most common exit device for commercial storefront glass door applications. Surface-mounted rim configuration. Available in a range of trim functions (outside key cylinder, lever trim, or no outside trim). The 99 series is the standard commercial grade; the 98 series is the heavy-duty version for high-use entries. Both meet ANSI A156.3 Grade 1 and are UL-listed for fire-rated door assemblies.
Used on pairs of glass doors where a rim device is not appropriate. The concealed vertical rod device engages top and bottom of the door at the frame, providing a clean exterior appearance. Requires coordination with the door frame design for top rod clearance at the header. Available with electric latch retraction for access control integration.
A fully concealed exit device integrated into the top rail of a narrow-stile glass door. Provides the minimum visual profile on glass storefront entries where hardware visibility must be minimized. Used on hospitality, retail, and high-end commercial entries. Requires specific door stile width to accommodate the device chassis.
Exit device selection depends on door configuration (single, pair, leaf width), occupancy (panic hardware required or optional), glass door rail size, access control requirements, and finish coordination with the storefront system.
LCN, also an Allegion brand, is the standard door closer specification on ACG commercial storefront projects. Door closer selection involves choosing the correct power size, mounting configuration, and arm type for the door's dimensions, weight, and exposure conditions.
The standard commercial storefront closer for most applications. Adjustable power sizes 1–6 from a single unit; this allows field adjustment to match actual door conditions. Available in surface-mounted, parallel arm, and top jamb mounting configurations. The 4040XP includes a separate backcheck adjustment, three independent speed adjustments (sweep, latch, backcheck), and is available with hold-open features. The 4041XP variant is the barrier-free (low opening force) model for ADA-sensitive applications.
A concealed closer installed into the door head or frame header, completely hidden when the door is open. Used on glass storefront doors where surface-mounted hardware would disrupt the aesthetic. Requires a routed recess in the frame header and coordination during frame fabrication — this cannot be field-added. Available with delayed action for ADA compliance at accessible entries.
Florida's wind conditions create pressure differentials across exterior storefront doors that require closers sized to overcome these forces while still meeting ADA opening force limits at accessible entries. A door in a high-wind-exposure location may require a Power Size 5 or 6 to close reliably in wind, but this same closer may produce opening forces above ADA limits. The solution at accessible exterior entries is typically an automatic operator — the operator handles both opening and closing, and the manual closer can be adjusted to minimum opening resistance as a backup.
Schlage commercial locksets, another Allegion brand, are specified on ACG storefront projects for primary access control (non-panic applications) and as trim on exit devices. Commercial-grade specifications use Schlage L-series (mortise) or D-series (cylindrical) hardware depending on door construction and security requirements.
The L-series mortise lockset is the heavy-duty commercial standard for high-use entries. It combines latch bolt, deadbolt, and sometimes an auxiliary function (hotel indicator, privacy) in a single chassis. For storefront, mortise locks are used on heavy-duty commercial entries and any door where both passage and deadbolt security are required. The mortise lock chassis is let into the door stile; this requires coordination with the door stile dimension and configuration during manufacturing.
The D-series cylindrical lock is the standard commercial grade for less demanding access points — secondary entries, utility access, and applications where a mortise lock is not required. It is surface-bored into the door stile. For glass storefront narrow-stile doors, cylindrical locks are typically the standard option as the mortise chassis may not fit in the stile width.
Commercial glass storefront doors are typically hung on pivots rather than hinges. Pivot sets provide a cleaner appearance on glass doors and accommodate heavier door weights than standard hinge sets. The standard commercial pivot set consists of a top pivot (center-hung or offset), a floor closer or bottom pivot, and an intermediate pivot for tall or heavy doors.
Offset pivots position the door rotation point set back from the face of the frame, allowing the door to swing past the frame edge without binding. This is the most common configuration for commercial glass storefront doors. Offset distance is typically 3/4" or 1" from the door face; confirm offset with the frame manufacturer to ensure the door clears the frame stile at full open.
Center-hung pivots position the rotation axis at the centerline of the door stile. Used for balanced doors or vestibule entries where the door swings in both directions. Center-hung floor closers (Rixson and similar) provide controlled swing in both directions and can be adjusted for hold-open positions. Center-hung doors require careful coordination of the floor closer location in the finished floor elevation — the floor closer housing must be set flush before flooring is installed.
Door bottom sweeps, automatic door bottoms, and threshold seals are critical for air infiltration, water resistance, and acoustic performance at commercial storefront entries.
Surface-mounted door bottom sweeps are attached to the bottom rail of the glass door and provide a continuous seal against the threshold when the door is closed. For high-traffic commercial entries, a replaceable insert sweep design is preferred — the insert can be replaced without removing the sweep housing from the door.
Automatic door bottoms deploy a sweep seal when the door closes (triggered by contact with the door stop or jamb) and retract when the door opens, keeping the sweep off the floor during the door's swing arc. This reduces sweep wear significantly on high-use entries. Mortise automatic door bottoms are let into the door bottom rail during manufacturing; surface-mount versions can be field-applied.
Head and jamb weatherstripping seals the door-to-frame interface on three sides. Commercial-grade weatherstripping uses replaceable bulb or fin seal inserts in aluminum housings that are surface-mounted or recessed into the frame. Florida's humidity and thermal cycling requires weatherstripping products rated for outdoor exposure — interior-grade products degrade rapidly on exterior storefront applications.
Automatic sliding and swing door operators are integrated with commercial storefront at entries requiring ADA compliance, high-volume pedestrian traffic, or touchless access. Allegion automatic operators are ACG's preferred product for integration with Allegion hardware families.
Automatic sliding door operators (Allegion Dor-O-Matic and similar) mount in a header unit above the storefront opening. The operator drives sliding door panels on an overhead track. Activation is by motion detector, push plate, access control reader, or remote. The operator must be powered by the electrical contractor — coordinate low-voltage power routing with the MEP team before frame installation. Per ANSI A156.19, the operator must include an obstruction detection system that stops and reverses the door on contact with an obstacle.
Low-energy automatic swing door operators (ANSI A156.10) are used on existing or new swing door configurations where full-speed automatic operation is not required. The operator assists door opening with motorized push, typically activated by a push-plate sensor or motion detector. Per ANSI A156.10, low-energy operators must limit door kinetic energy at the fully open position to prevent injury. These are commonly used on accessible side entries where full sliding door infrastructure is not warranted.
ACG includes a hardware schedule in the shop drawing submittal package for every storefront project involving doors with hardware. The hardware schedule itemizes, by door number:
The hardware schedule is reviewed and approved by the architect or hardware consultant as part of the Division 08 submittal review. ACG does not proceed with hardware procurement until the hardware schedule has received written approval.
ANSI A156.3 (exit devices), ANSI A156.4 (door closers), ANSI A156.10 (power-operated swing doors), ANSI A156.19 (power-operated pedestrian/sliding doors), ADA 2010 Standards §404 (accessible door force, clearance, hardware operability), and FBC/IBC Chapter 10 (egress requirements).
Allegion Von Duprin exit devices: the 98/99 series for rim applications on single glass doors, the 35 series concealed vertical rod for pairs, and the CD series concealed device for narrow-stile glass doors where hardware visibility must be minimized.
LCN 4040XP series for most applications — adjustable power size 1–6 in surface, parallel arm, or top jamb configurations. LCN 1460 concealed for aesthetic-sensitive applications requiring hardware hidden in the frame header.
ADA 2010 §404.2.9 requires interior accessible doors to open with no more than 5 lbs of force. Exterior doors are exempt under ADA due to wind load, but Florida Building Code may impose limits on accessible route doors. At accessible exterior storefront entries with significant wind exposure, an automatic operator is typically the solution.
The operator header unit mounts above the storefront frame opening, driving sliding panels on an overhead track. It requires electrical power from the MEP contractor. Activation sensors (motion, push plate, access control) are specified in coordination with the security and electrical design. Per ANSI A156.19, obstruction detection is mandatory.
Yes. ACG furnishes and installs door hardware as part of the storefront scope, with a hardware schedule reviewed and approved by the architect before procurement. ACG's standard is Allegion products for their code compliance, commercial duty rating, and service network availability in Florida.