Special Doors

Special uPVC Doors for Wide, Corner and Dual-Function Openings e

Special uPVC doors are purpose-built door systems that pair a specific opening mechanism with a frame and hardware engineered to carry that movement. Griham builds them for wide, corner, and dual-function openings that a standard slider or casement cannot serve. A balcony may need full clearance, a corner may need to open without a post, or an entrance may need ventilation and security together, and each calls for a different door. This thinking runs through Griham's upvc door design: a 4-Chambered Profile engineered for strength and structural stability, along with fusion-welded joints, drainage paths, and reinforced frames with multi-point locking. Across seven configurations, Griham's modern upvc doors provide different combinations of opening patterns m.

Special Door Patterns and What Each One Serves 

Griham's special door range covers seven upvc door styles, and each one is built to serve a different kind of opening.
Slide and Fold Doors: These open up the space almost completely by folding panels to the side, which make them suitable for large balconies, patios, garden sit-outs, and cafes. This is Griham's widest-opening slide and fold door format, with ~85–95% opening.

Glass To Glass: These doors give a seamless glass-to-glass look for ultra-modern aesthetics and uninterrupted visibility, by joining two panes at a corner with no vertical mullion. They are suited to premium villas, showrooms, and commercial interiors.

Tilt And Slide Door: Griham's tilt and slide upvc door options, tilt for safe daily ventilation and slide for full access, giving roughly 10 to 15% opening in tilt mode and 50 to 66% opening in slide mode. These doors are suitable for balconies, bedrooms with balcony access, and high-rise apartments.

Casement Door With Georgian Bar: This door pattern offers classic Georgian styling and wide clear ~90–100% opening, suited to balconies, studies, offices, and heritage-style homes.

Corner Slider Door: This door pattern creates an open corner view with sliding shutters meeting at the corner. It had ~65–75% opening, which makes it suitable for living rooms, lounges, villas, and corner locations.

Villa Door: This pattern offers a premium villa-style openable door paired with an integrated mesh shutter for insect-free ventilation, with the main door opening around 90 to 100% and the mesh usable for ventilation while it stays closed.

Slim Line Door: This door pattern has a minimal frame with more glass and a modern look with ~50–66% opening, based on configuration, suited to luxury apartments, modern villas, showrooms, and designer spaces. 

Together, these seven patterns cover every configuration Griham offers for upvc special doors. 

Choosing the Right Special Door for Your Opening  

When selecting a special door, it is the opening that decides the look, since its width, position, and use determine which pattern will fit. For full clearance across a patio or living room, slide and fold doors let the panels fold neatly to one side, opening up roughly 85 to 95% of the space. g. For an unbroken corner view, a glass to glass upvc door removes the vertical mullion, while a corner slider gives villas similar openness on shutters meeting at the corner. For ventilation with security, a tilt and slide door tilts for safe ventilation at 10 to 15% opening, being a strong choice among upvc doors for balcony. This is the upvc door design logic that should guide the choice between sliding and hinged doors across every pattern that Griham offers. 

Threshold, Drainage and Monsoon Performance 

Wide sliding openings put the most stress on threshold and drainage design, which is exactly what Griham keeps in mind while engineering its special upvc doors. Every upvc door frame in Grihan’s range uses fusion-welded joints at each corner, which removes the mechanical joints where water usually finds its way in. Weather seals along the sash and frame close the remaining gaps, so upvc doors waterproof performance holds up on wide slide-and-fold and tilt-and-slide openings. Lastly, reinforced frames and multi-point locking keep these openings stable against wind-driven rain through the monsoon season. 

Glass, Finish and Hardware Options  

Every special door in the range is essentially a upvc glass door, with glass options like toughened, laminated, or double-glazed, depending on the opening. Glass to glass doors need toughened glass to handle wind pressure across an unsupported corner. Corner sliders and slide-and-fold doors are often specified with laminated glass instead, for added security and sound insulation. 

For the panel finish, Griham uses Supreme's Deco-Shield technology, creating wood grain, marble, and metallic textures with water-based inks instead of lamination foils, for better UV resistance and colour stability. 

Lastly, hardware options include multi-point locking and smart digital locks. So all these combinations provide homeowners an option to customize upvc doors and windows.