Glass Shopfronts

Glass shopfronts — also known as frameless shopfronts or structural glass facades — use minimal or no visible aluminium framing to create the most transparent possible retail entrance. Where a traditional aluminium shopfront uses mullions and transoms to support the glazing, a glass shopfront relies on the structural capacity of the toughened glass itself, supported by patch fittings, point fixings, or slender stainless-steel hardware that is visually unobtrusive.

The result is a shopfront with maximum transparency: an uninterrupted view of the retail interior from the street, maximum natural light penetration, and a contemporary, high-end aesthetic that communicates quality and openness to prospective customers.

Urban Shopfronts designs and installs glass shopfront systems for retail units, showrooms, restaurants, galleries, and any commercial premises where visual transparency is a primary design objective.

Frameless Glass Construction

In a frameless glass shopfront, each glass panel is a structural element. The glass is toughened to BS EN 12150-1 — typically 10 mm or 12 mm thick for shopfront applications — and is self-supporting within the limits of the panel size and wind load. Panels are joined at their edges by patch fittings (stainless-steel clamps fixed through holes drilled in the glass), by structural silicone bonding, or by channel fixings at head and sill that allow the glass to stand vertically without intermediate mullions.

The absence of aluminium mullions means that each glass panel must be sized to resist the full wind load on its area without deflecting beyond acceptable limits. Maximum panel sizes are determined by the glass thickness, aspect ratio, and the design wind pressure for the site. Typical maximum panel sizes for 12 mm toughened glass in a shopfront application are approximately 3.0 m in height by 2.0 m in width, although this varies with wind loading and support conditions.

Glass Door Options

Glass shopfront entrance doors can be frameless (using patch fittings and a floor spring or overhead pivot) or framed within a minimal stainless-steel or slim aluminium frame. Frameless glass doors use 10 mm or 12 mm toughened glass with top and bottom patch fittings, a floor-spring closer recessed into the threshold, and pull handles bolted through the glass.

For premises requiring automatic operation, we integrate automatic sliding or swing door operators within the glass shopfront design. Sliding systems use a slim overhead track with minimal visible hardware; swing systems use a concealed floor-spring or overhead operator. See our automatic doors service for full details.

Structural Glazing and Point Fixings

For larger glass facades or multi-storey applications, point-fixed structural glazing uses stainless-steel spider fittings or button fixings to connect the glass panels to a supporting structure — typically stainless-steel rods, cable trusses, or structural glass fins. This approach allows floor-to-ceiling glazing with no visible framing, creating the most transparent possible facade.

Point-fixed glazing requires specialist engineering: each fixing must be designed to transfer wind loads and dead loads through the glass without inducing unacceptable stress concentrations around the fixing holes. Our systems use countersunk stainless-steel fixings with nylon bushes that distribute the load across the glass thickness, and all fixing positions are verified by finite-element stress analysis.

Safety and Compliance

All glass in shopfront applications must comply with BS 6262 for glazing in buildings and must use safety glass — toughened to BS EN 12150-1 or laminated to BS EN ISO 12543 — in all critical locations as defined by the standard. For frameless glass doors, the glass must also comply with BS EN 12600 for impact classification.

Where the glass shopfront incorporates a DDA-compliant entrance, manifestation markings are applied to the glass at two height bands (850–1000 mm and 1400–1600 mm above floor level) to make the glazing visible to partially sighted people, as required by BS 8300 and Approved Document M.

Thermal Considerations

Single-pane frameless glass shopfronts do not achieve the U-values required by Building Regulations Part L for new-build or major refurbishment. Where Part L compliance is required, we can specify frameless double-glazed units using structural silicone edge bonding, or specify a hybrid system with minimal aluminium framing at head and sill to support a double-glazed sealed unit. The appropriate solution depends on the building control body's interpretation of Part L requirements for the specific project.

For existing shopfront replacements that do not trigger Part L requirements, single-pane toughened glass frameless systems remain a popular and visually striking option.