LR-4500 Uninsulated Opening System
With wide glass surfaces and sleek profiles, LR-4500 creates a seamless connection between inside and outside, offering versatile window and door openings, economical use and a modern look.
LR-4500 is an uninsulated opening system with a larger section (55/63.7 mm frame, 62/74.3 mm sash) and thicker walls (1.6–2.0 mm) than LR-4100. Glazing up to 40 mm and 130 kg of glass per sash cover wide-glass doors and windows. The three-stage gasket strengthens sealing, and powder-coat and wood-effect finishes adapt to different architectural identities.
Key features
01 · Sleek profiles, wide glass
A clean profile appearance combines with generous glass surfaces to create a bright, visually continuous connection between spaces.
02 · Three-stage gasket
Three separate sealing levels give more reliable protection against air and water in an uninsulated profile.
03 · Glazing up to 40 mm
Single or double glazing support; large sashes with a 130 kg capacity.
04 · Distinctive finishes
Powder-coat and wood-effect alternatives suit interior design decisions.
Technical details
| Specification | Value |
| Frame Dimensions | 55 / 63.7 mm |
| Sash Dimensions | 62 / 74.3 mm |
| Glass Application | Up to 40 mm |
| Max. Glass Weight | 130 kg |
| Sealing | Three-stage gasket |
| Profile Wall Thickness | 1.6–2.0 mm |
LR-4500 adapts easily to contemporary interior and exterior layouts with its practical structure and versatile opening options for both window and door applications.
Glazing support up to 40 mm, a 130 kg glass capacity and a three-stage gasket system combine aesthetics, durability and functional performance in wide-glass applications.
Product visuals
Frequently asked questions
What is the difference between LR-4100 and LR-4500?
LR-4500 has a larger profile section, 40 mm glazing and a 130 kg sash capacity for wide openings; LR-4100 is the economical option for smaller windows and doors.
Is wood-look aluminium possible?
Yes; a wood-effect (sublimation) coating applies oak, walnut and similar patterns. The colour chart is shown at the dealer's survey.
Plan your project with Ferrini
Ferrini is the authorised manufacturer of LineaRossa aluminium systems. The LR-4500 is machined and glazed in our İzmir facilities and supplied as a knock-down system to our authorised dealers across Türkiye; measuring, glass, colour and hardware selection and installation are handled by your nearest Ferrini dealer.
Contact us for your nearest dealer and a quote
Technical files are in the dealer portal
Technical catalogues, DWG drawings, installation files and current price lists are in the Ferrini dealer portal. Not a dealer yet? Apply and we will open access.