Steel Doors
The Üstün Ahşap & Berilla Door “Steel Doors” series offers high-performance solutions that combine security, durability, and aesthetic design. From modern residences to commercial entrances, from villas to gated community access points — it promises superior protection with style across a wide range of applications.
Product Description & Material Structure
Main Door Leaf: Manufactured from 1.2–1.5 mm thick cold-rolled steel sheet
Frame Profile: Reinforced steel frame with galvanized, thermally broken profiles
Core Insulation: High-density polyurethane foam or rock wool filling for thermal and sound insulation
Surface Finish: Electrostatic powder coating (RAL chart) or wood-look foil veneer
Technical Specifications & Performance
Security: 6-point multi-locking system, steel bolt mechanisms, and safety features with Allen-key reinforced locks
Thermal Insulation: Polyurethane-filled door leaf and thermal break technology deliver a thermal transmittance (U-value) below 1.8 W/m²K
Acoustic Insulation: Soundproofing performance between 35–45 dB effectively blocks external noise pollution
Fire Resistance: Fire-rated for 30–60 minutes in compliance with TS EN 1634-1 standard
Burglary Resistance: Certified to TS 5074 with RC3 or higher intrusion resistance class options
Design & Customization Options
Color & Finish Options: Matte, semi-matte, or gloss powder coatings; wood-effect foil veneers in oak, walnut, or teak
Model Variants: Plain leaf, panel designs, sandblasted or laser-cut decorative patterns
Glass Integration: Options include double glazing or security glass panels, frosted, patterned, or sandwich-style inserts
Accessories: Stainless steel door handles, decorative escutcheons, matching thresholds and hinge finishes
Durability & Easy Maintenance
Corrosion Resistance: Galvanized internal structure and exterior powder coating provide high-level protection against rust
Weather Resistance: Long-lasting performance against sun, rain, and salt-laden air
Low Maintenance: Wipe clean with a damp cloth and mild detergent — no special cleaning agents required
Why Choose Üstün Ahşap & Berilla Door Steel Doors?
60+ Years of Experience: Ongoing R&D investments and internationally aligned quality processes
Certified Security: Independently lab-tested products in compliance with EN and TS standards
Tailor-Made Solutions: Full customization in size, color, accessories, and advanced security options
Fast Logistics & Support: Timely delivery and service via a wide dealership and service network across Turkey
