Why Spider Glazing Is the Ideal Choice for Office Buildings and Storefronts

Spider glazing turns a wall of glass into a frameless, almost invisible façade, that’s exactly why architects keep specifying it for offices and storefronts. If you’ve ever walked past a building where the glass panels seem to float with no metal frame in sight. Then, you’ve seen spider glazing at work. 

This guide covers what it is, how it holds up a wall of glass, and why it fits commercial buildings better than most other facade systems.

Quick Summary: Spider Glazing at a Glance

What Is Spider Glazing?

Spider glazing is a frameless glass facade system that uses steel fittings, called spiders. They are used to bolt glass panels directly onto a hidden support structure. That is, without holding them inside aluminum frames.

The result is a clean sheet of glass with no visible grid. From the street, all you see is glass and a scatter of slim steel arms holding each panel in place. Architects reach for it on lobbies, entrances, and storefronts where an unbroken view matters more than anything else.

It isn’t a new idea, point-fixed glass has been around since the 1980s. But better steel alloys and stronger sealants have made it far more reliable for everyday commercial use. That’s part of why it now shows up on mid-size office buildings and single-unit retail stores. Not just flagship towers.

The Main Parts of a Spider Glazing System

1. Tempered or laminated glass panels, usually 10mm to 19mm thick
2. Stainless steel spider fittings, 2-arm, 3-arm, or 4-arm depending on the panel layout
3. Structural mullions or tensioned steel cable trusses behind the glass
4. Silicone sealant and weatherproof gaskets at every joint

Why Spider Glazing Is the Ideal Choice for Office Buildings

It suits office buildings because it pulls more daylight into the floor plate. It signals a modern brand image, and keeps sightlines open across the lobby.

1. Daylight reaches deeper into the office, cutting reliance on artificial lighting
2. Frameless glass photographs better for company branding, signage, and lobby videos
3. Wide spans support open reception areas without a visual grid breaking up the space
4. Point-fixed glass can be engineered into curved, angled, or sloped facades 

For tenants and buyers, the payoff shows up in leasing conversations too. A frameless glass lobby reads as a higher-tier building. Landlords can use this to justify premium rents on ground-floor and top-floor space.

Why Spider Glazing Works So Well for Storefronts

Storefronts benefit from spider glazing because shoppers can see the entire display without a metal grid breaking up the view.

1. Full product visibility from the sidewalk, day and night
2. Tempered safety glass holds up to daily foot traffic and accidental impact
3. Frameless entrances make even a small retail unit feel larger and more upscale
4. Pairs easily with automatic sliding doors or pivot entrances for a seamless storefront

Retail landlords also like that because it is easy to reconfigure. There’s no continuous frame. So, swapping a damaged panel or resizing an entrance doesn’t mean rebuilding an entire wall section.

How Does Spider Glass Work?

Spider glass works by transferring the weight of each panel, plus wind pressure from outside. All that is done with bolted spider fittings into a hidden steel or aluminum structure behind the glass.

Each fitting grips the glass through a drilled hole. So the load runs straight from the pane into the frame without any surrounding metal. Panels are typically tempered safety glass tested to standards like ASTM C1048. 

This sets thickness and heat-treatment requirements for architectural glass. Sealant fills every gap so wind and rain can’t get past the joint.

What Are the Types of Glazing? Where Does Each Fit

Glazing falls into a few main categories, and spider glazing is the frameless, point-fixed version of structural glazing.

Most commercial buildings use one of four systems. And they trade off differently on cost, speed, and how much frame you actually see:

Spider Glazing vs Traditional Curtain Wall

Spider and traditional curtain wall both enclose a building in glass. But they differ in appearance, installation speed, and where they’re typically used.

2026 Trends Shaping Spider Glazing for Commercial Facades

Three trends are changing how architects specify this glazing in 2026. Smart glass, solar-integrated panels, and BIM-modeled fittings.

1. Smart Glass Integration

Electrochromic glass now tints on demand. Cutting solar heat gain without adding external shading or losing the frameless look.

2. Solar-Integrated Facades

Thin-film photovoltaic layers are being embedded directly into spider-glazed panels. Turning the facade into a small power source. It’s in line with DOE building-envelope efficiency guidance.

3. BIM-Modeled Spider Fittings

Engineers now model spider fitting loads in BIM software before fabrication. This cuts on-site fitting errors and speeds up approval.

What Does Spider Glazing Cost? Key Factors

It typically costs more than framed curtain wall. That’s because of the custom hardware and precision engineering each panel needs.

1. Glass thickness and type, tempered, laminated, or insulated
2. Spider fitting finish, stainless steel, powder-coated, or a custom coating
3. Panel size and structural span between fittings
4. Site installation complexity and shipping distance from the factory

Energy performance also affects the final spec. Panels are usually rated against NFRC standards and, where required. Also, against FGIA fenestration guidelines before they’re approved for a commercial permit.

Starveil has spent 28 years manufacturing aluminum and glass facade systems. That too, from a single 45,000 m² factory in Foshan, China. So your spider glazing project is built by the same team that designs it.

1. We’ve completed more than 1,500 projects across 118 countries
2. With certifications matched to each market 
3. NFRC and CSA for North America
4. CE marking for Europe and the Middle East
5. AS2047 for Australia and New Zealand
6. Every order is engineered in-house

So a spider glazing spec doesn’t get handed off to a subcontractor once production starts.

Apart from that, we manufacture full curtain wall systems and custom aluminum doors and windows. With free 3D drawings, DDP shipping, and on-site installation guidance included on every project. 

If structural glazing standards like those from AAMA matter for your permit. Then don’t worry, because our engineering team builds to them before the glass ever leaves the factory.

Get a Free Quote Now 

Spider glazing is one of the clearest ways to give an office building or storefront a frameless, modern glass façade. And getting the engineering right from the start saves time and cost later.

Whether you’re specifying one storefront or a full office tower lobby. It helps to price the glass, hardware, and installation together rather than piece by piece. That’s where most budget surprises come from. 

Send Starveil your project drawings. And get a free quote with 3D rendering within 24 hours. Contact our team to get started.

FAQs

What is spider glazing?

Spider glazing is a frameless glass facade system. One that bolts glass panels to a hidden structure using steel spider fittings instead of aluminum frames.

What are the types of glazing?

The main types are stick curtain wall, unitized curtain wall, structural silicone glazing, spider glazing. Each differing in how much frame is visible and how the glass is supported.

What is spider glass?

Spider glass is another name for the tempered or laminated glass panels. These are used in a spider glazing system. They are fitted with the bolted steel arms that give the system its name.

How does spider glass work?

Spider glass works by routing the glass panel’s weight and wind load through bolted spider fittings. All of that into a support structure hidden behind the glass. So no visible frame is needed.