ויטרינות פינה פתוחה — open corner glazing systems — are frameless corner window units where two glass panels meet at a corner with no vertical post between them, opening a room to a full panoramic view. In 2026 these systems cost roughly $150–$220per square foot, use ultra-slim 20–25 mm aluminum profiles, and can be configured with corner angles from 65° to 177°. They are the defining architectural feature of high-end minimal homes.
Euroline Israel, specializing in minimal aluminum window and door systems in luxury homes across Israel, engineers open corner solutions through its CORVISION line — two glass walls meeting at 90° without a vertical frame. Below is a complete, practical buyer's guide covering how they work, what they cost, glass and thermal choices, installation, and how to pick the right configuration for your project.
What Are ויטרינות פינה פתוחה and How Do They Work?
An open corner glazing system removes the structural corner post that traditional construction relies on. Instead of two window units butting against a mullion, two panels of glass meet edge-to-edge, held by hidden steel reinforcement inside slim aluminum tracks. The result is an uninterrupted 90° view that dissolves the boundary between inside and outside.
Two main mechanical approaches exist:
- Fixed glass-to-glass corner — two glass panels bonded at the corner with structural silicone, creating a seamless all-glass junction. Idealcombi's Futura+ system, for reference, achieves this with a slim 53 mm aluminium profile.
- Sliding open corner — the two corner panels slide away completely, physically removing the corner so the room opens directly to a terrace or garden. When closed, premium systems show ultra-slim sightlines around 21 mm and no frame at the head or base.
Euroline's CORVISION uses a 25 mm profile at a clean 90° corner, engineered with a galvanized steel core hidden inside the aluminum that can carry sashes weighing up to 500kg without deforming over decades.
How Much Do Open Corner Windows Cost in 2026?
Pricing is the question every buyer asks first, and open corner glazing sits at the premium end of the market. Frameless corner windows for residential installations run between $1,500 and $5,000 per window unit, or approximately $110 to $180 per square foot for the system alone.
To put that in context, frameless installations generally run 2–3× the cost of equivalent framed windows. A quality framed vinyl or fiberglass window costs $35–$65 per square foot installed, while frameless picture glazing lands at $80–$150 per square foot. A typical 4×6 ft frameless picture unit costs $1,920–$3,600.
| System type | Cost per sq ft (installed) |
|---|---|
| Standard framed vinyl/fiberglass | $35–$65 |
| Frameless picture window | $80–$150 |
| Open corner glazing system | $150–$220 |
The premium buys three things: structural engineering to eliminate the corner post, wider glass spans, and thermal performance that framed systems rarely match. For a single hero corner in a living room, most buyers should budget accordingly and treat it as an architectural investment rather than a commodity window.
What Configurations and Corner Angles Are Available?
Open corner systems are far more flexible than the standard 90° assumption. Depending on the manufacturer, corner angles can range from 65° to 177°, which lets architects follow the geometry of an existing plot or design an angular facade.
Key configuration decisions include:
- Fixed vs. sliding — Do you want an unbroken view (fixed) or the ability to open the corner entirely to a terrace (sliding)?
- Opening direction — Which way the sliding panels retract, and whether they stack behind a wall or a glass pocket.
- Panel height — Premium minimal systems support openings up to 6 meters wide without an intermediate post.
- Track type — Concealed floor tracks set flush with the flooring, level with the finish so there is no step and the interior floor continues outside.
Euroline plans these configurations as part of the whole building envelope. Because the company is an engineering-led builder — part of the Amit Mershansky construction group that built Israel's largest private home at 6,000 m² — the corner glazing is designed around structural loads, drainage, and thermal breaks from day one rather than added as an afterthought. You can see the CORVISION corner system among the full range on the Euroline minimal systems site.
Glass, Thermal Performance and Security: What to Specify
Because open corner units carry so much glass, the specification of that glass matters more than in a small window. Israel's climate — strong sun, coastal salt, temperature swings — demands careful thermal and structural choices.
Thermal efficiency
Double glazing with a Low-E coating and a polyamide thermal break is the baseline. For maximum efficiency, triple-glazed corner windows push U-values down to around 0.75 W/m²K, dramatically reducing heat gain in summer and heat loss in winter.
Structural glass thickness
Large corner spans require thicker, often laminated safety glass. The steel core inside the profile does the structural work, but the glass itself must resist wind load and, for sliding systems, repeated movement.
Security
Frameless does not mean fragile. High-end corner systems can reach top security ratings — swissFineLine, for example, achieves security class RC4 on its corner openings. Ask your supplier which resistance class the corner configuration can certify.
Euroline builds its profiles with a three-layer EPDM sealing system, concealed drainage, and a polyamide thermal break so the clean minimal look survives decades of sun, wind and sea air without condensation or leaks.
Why Open Corner Glazing Beats a Standard Living-Room Vitrine
The competitor market splits into two very different products that share the Hebrew word "ויטרינה." One is a furniture display cabinet with glass doors, priced from roughly ₪990 to ₪2,400. The other — the one covered here — is an architectural glazing system that forms part of the building itself. If you searched for ויטרינות פינה פתוחה expecting a panoramic glass corner, that is a construction system, not a cabinet.
The advantages of a true open corner system over standard corner windows:
- Uninterrupted view — No vertical mullion breaking a panorama across two facades.
- More natural light — Two glass walls flood a room from two directions.
- Seamless indoor–outdoor living — Sliding corners physically remove the boundary to a terrace or pool.
- Architectural value — Frameless corners are positioned as one of the most exciting design features of 2025 and 2026, adding measurable resale appeal to luxury homes.
The trade-off is cost and the need for correct engineering. This is where choosing a supplier that is an engineering and construction group — not only an aluminum fabricator — protects the property owner. Euroline sees the whole picture through its aluminum systems, coordinating the corner with structure, waterproofing and finish flooring.
How to Choose the Right Open Corner System for Your Home
Use this checklist when comparing quotes and suppliers:
- Profile width — Slimmer is more premium; Euroline works at 20–25 mm versus 50+ mm on many competitors.
- Maximum span — Confirm the widest opening the system carries without a post (up to 6 m on top systems).
- Thermal data — Ask for the Uf and Ug values and whether triple glazing (≈0.75 W/m²K) is available.
- Track detail — Insist on a concealed, level-threshold track for a true seamless floor line.
- Engineering support — Does the supplier design the corner into the structure, or just install a product?
- Warranty and service — Long-term hardware and sealing warranty matters most on load-bearing glass.
Frequently Asked Questions
What are ויטרינות פינה פתוחה?
They are open corner glazing systems — frameless corner windows where two glass panels meet at a corner with no vertical post between them. They create a continuous panoramic view across two facades and can be fixed or sliding.
How much do open corner windows cost in 2026?
Expect $1,500–$5,000 per unit, or about $110–$180 per square foot installed. That is roughly 2–3× the price of standard framed windows, reflecting the structural engineering and larger glass spans required.
Are frameless corner windows secure?
Yes. Premium systems reach high security classes — some certify RC4, the top residential resistance class — using laminated glass, hidden steel reinforcement and high-load hardware. Frameless refers to the look, not to reduced strength.
What corner angles are possible?
Standard is 90°, but flexible systems support angles from 65° up to 177°, letting the glazing follow angular plots or facades. Euroline's CORVISION corner works at a clean 90° with a 25 mm profile.
Do open corner systems perform well thermally in Israel's climate?
They can. With a polyamide thermal break, Low-E double glazing, and optional triple glazing reaching around 0.75 W/m²K, well-engineered corner systems reduce solar heat gain and prevent condensation even under strong coastal sun.
Can the whole corner slide open?
Yes. Sliding open corner systems retract both panels so the corner disappears entirely, opening the room to a terrace or garden. When closed they show ultra-slim sightlines around 21 mm with no frame at head or base.
Talk to Euroline About Your Open Corner Project
Open corner glazing rewards early planning and precise engineering. If you are building or renovating a luxury home in Israel and want a panoramic frameless corner done right, book a consultation with the Euroline team through the Euroline minimal systems site to design ויטרינות פינה פתוחה that fit your structure, climate and view.