DORPRIME
DORPRIME MarkDORPRIME™
IS A UNIT OF
BSS LogoBIHARI STEEL SOLUTIONS PVT. LTD.
HEAVY-DUTY FIRE DOORS • CNC PRECISION • LASER CUTTING
DORPRIME MarkDORPRIME™
IS A UNIT OF
BSS LogoBIHARI STEEL SOLUTIONS PVT. LTD.
HEAVY-DUTY FIRE DOORS • CNC PRECISION • LASER CUTTING
DORPRIME MarkDORPRIME™
IS A UNIT OF
BSS LogoBIHARI STEEL SOLUTIONS PVT. LTD.
HEAVY-DUTY FIRE DOORS • CNC PRECISION • LASER CUTTING
DORPRIME Aerial Steel Manufacturing Plant in Greens
Bihari Steel Solutions Pvt. Ltd.|DORPRIME™

Engineered for Extreme Environments. Built for Life Safety.

STRONG DOORS. SAFE SPACES.

Precision-manufactured fire-rated steel doors, cleanroom systems, acoustic enclosures, and heavy architectural openings. Designed and tested to exceed stringent global fire safety and life protection standards.

Complete Certified Product Line

High-Performance Engineered Openings

Manufactured by Bihari Steel Solutions Pvt. Ltd. to rigorous international safety, acoustic, and structural benchmarks for commercial, industrial, and healthcare projects.

METAL FIRE DOORS
UL 10C / EN 1634

METAL FIRE DOORS

Heavy-duty galvanised steel fire doors engineered with perimeter intumescent seals, panic exit hardware, and reinforced structural frames.

Up to 240 Min Fire RatingView Details
WOODEN FIRE DOORS
FD30 / FD60 / FD120

WOODEN FIRE DOORS

Architectural natural timber fire doors combining aesthetic elegance with certified fire resistance for commercial offices, hotels, and institutional facilities.

Certified Mineral CoreView Details
ACOUSTIC DOORS
STC Sound Isolation

ACOUSTIC DOORS

Engineered high-density sound reduction doors with heavy mechanical perimeter drop seals for auditoriums, studios, and mechanical plant rooms.

Multi-Seal SoundproofingView Details
FIRE HOSE CABINETS
Emergency Access

FIRE HOSE CABINETS

Heavy-gauge galvanised steel emergency fire hose and extinguisher cabinets designed for quick emergency access in commercial and industrial complexes.

Recessed & Surface MountView Details
GLAZED FIRE DOORS
Clear Vision Glass

GLAZED FIRE DOORS

Precision steel framed fire barrier glass doors offering maximum natural light transmission while delivering certified fire integrity and heat insulation.

Thermal Radiation BarrierView Details
CLEAN ROOM DOORS
GMP / ISO 14644

CLEAN ROOM DOORS

Seamless flush pharmaceutical doors designed for zero air leakage, antimicrobial compliance, and high chemical resistance in sterile environments.

Hygienic Flush SurfaceView Details
LEAD LINED DOORS
Radiation Shield

LEAD LINED DOORS

Continuous lead-shielded doors engineered to block harmful radiation for hospital X-ray rooms, CT scan suites, and diagnostic medical facilities.

Certified Lead CoreView Details
SHAFT DOORS
Riser & Utility

SHAFT DOORS

Fire-rated steel access doors designed for vertical duct risers, electrical conduits, and plumbing shafts with secure latching systems.

Fire Rated Access PanelView Details
FLUSH DOOR
Commercial Grade

FLUSH DOOR

High-durability solid core flush doors built for high-traffic corridors, educational institutions, commercial offices, and utility spaces.

Solid Core ConstructionView Details
STEEL DOORS WITH WOODEN FINISH
Security + Luxury

STEEL DOORS WITH WOODEN FINISH

Uncompromising heavy steel structural strength with authentic architectural wood grain texture for executive entrances and luxury villas.

Decorative Wood GrainView Details
STEEL DOORS WITH WOODEN FINISH WITH EMBOSS
3D Embossed Steel

STEEL DOORS WITH WOODEN FINISH WITH EMBOSS

Heavy-gauge galvanised steel doors featuring deep 3D embossed geometric and traditional patterns fused with rich wood grain textures and multi-point locking.

Deep Architectural EmbossingView Details
UPVC DOOR
Weather Sealed

UPVC DOOR

High-performance multi-chamber UPVC door systems providing superior thermal insulation, sound dampening, and complete corrosion resistance.

Multi-Chamber ThermalView Details
UPVC WINDOW
Energy Efficient

UPVC WINDOW

Precision-extruded UPVC window frames engineered for multi-point locking security, acoustic comfort, and maximum weather resistance.

Casement & SlidingView Details
CABLE TRAY
Heavy Galvanised

CABLE TRAY

Industrial-grade cable management containment systems manufactured from heavy-gauge hot-dip galvanised steel for power and data distribution.

Perforated & Ladder TypesView Details
ALMIRAH
Heavy Storage

ALMIRAH

Heavy-gauge reinforced industrial steel storage almirahs and locker cabinets designed for secure tool, record, and document archiving.

Reinforced Cold-Rolled SteelView Details
Technical Consultation & Site Visits

Schedule a Consultation with Our Engineering Team

Connect directly with our senior structural and fire safety engineers. We review architectural door schedules, fire-rating certifications, hardware specifications, or arrange a scheduled visit to our manufacturing plant.

Quick 24-Hour Review

BOQ schedules and CAD submittals analyzed within one business day.

Factory Audits Welcome

In-person inspection of our CNC laser cutting, bending, and assembly bays.

Request an Appointment

Fill in your project requirements and our technical director will get in touch.

Manufacturing Pedigree

Why Industry Leaders Choose DORPRIME

Manufactured by Bihari Steel Solutions Pvt. Ltd., our steel openings combine two decades of precision fabrication with life-safety compliance trusted across commercial towers, industrial parks, and healthcare developments.

01DORPRIME Standard

UL 10C & Global Fire Certifications

Every fire-rated door is engineered and tested to internationally recognized fire endurance benchmarks (UL 10C, EN 1634-1, BS 476, and IS 3614) delivering up to 240 minutes of proven integrity and thermal insulation.

Certified 60, 120, and 240-minute fire ratings
Perimeter intumescent smoke and thermal seals
Panic hardware and automated closer compatibility
02DORPRIME Standard

In-House Automated CNC & Laser Plant

Manufactured inside Bihari Steel Solutions' advanced production facility using high-precision CNC fiber laser cutting, multi-axis bending, and automated assembly bays for zero-tolerance door and frame alignment.

High-speed fiber laser cutting with 0.1mm tolerance
Automated press-brake bending for rigid box frames
Reinforced hinge and lock reinforcement plates
03DORPRIME Standard

Custom Architectural Flexibility

We adapt to complex architectural specifications without compromising certification—including custom vision panels, lead lining for radiation suites, acoustic cores, and decorative wood finishes.

Single and double-leaf custom dimensional sizing
Powder-coated RAL finishes and luxury wood-grain lamination
Seamless cleanroom and acoustic perimeter drop seals
04DORPRIME Standard

Rigorous QA & Metallurgical Traceability

Backed by an ISO 9001:2015 certified quality management system. Every door leaf, frame profile, and hardware batch comes with factory test certificates, metallurgical mill reports, and warranty backed support.

Prime hot-dip galvanised and cold-rolled steel coils
Independent third-party laboratory test reports
Standardised warranty and lifetime technical service
Accreditations & Standards

Official Certifications

Audited and certified by accredited national and international authorities for quality, environmental safety, and structural manufacturing integrity.

ISO 9001:2015 - Quality Management System
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ISO 9001:2015
Quality Management System
ICS International Certification (IAF / NAF)
ISO 14001:2015 - Environmental Management System
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ISO 14001:2015
Environmental Management System
Universal Certification Services (IAF / NAF)
ISO 45001:2018 - Occupational Health & Safety
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ISO 45001:2018
Occupational Health & Safety
Universal Certification Services (IAF / NAF)
Startup India - Certificate of Recognition
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Startup India
Certificate of Recognition
DPIIT, Ministry of Commerce & Industry, Govt. of India
DGFT IEC Code - Importer-Exporter Authorization
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DGFT IEC Code
Importer-Exporter Authorization
Ministry of Commerce and Industry, Govt. of India
ISO 9001:2015 - Quality Management System
Enlarge
ISO 9001:2015
Quality Management System
ICS International Certification (IAF / NAF)
ISO 14001:2015 - Environmental Management System
Enlarge
ISO 14001:2015
Environmental Management System
Universal Certification Services (IAF / NAF)
ISO 45001:2018 - Occupational Health & Safety
Enlarge
ISO 45001:2018
Occupational Health & Safety
Universal Certification Services (IAF / NAF)
Startup India - Certificate of Recognition
Enlarge
Startup India
Certificate of Recognition
DPIIT, Ministry of Commerce & Industry, Govt. of India
DGFT IEC Code - Importer-Exporter Authorization
Enlarge
DGFT IEC Code
Importer-Exporter Authorization
Ministry of Commerce and Industry, Govt. of India
ISO 9001:2015 - Quality Management System
Enlarge
ISO 9001:2015
Quality Management System
ICS International Certification (IAF / NAF)
ISO 14001:2015 - Environmental Management System
Enlarge
ISO 14001:2015
Environmental Management System
Universal Certification Services (IAF / NAF)
ISO 45001:2018 - Occupational Health & Safety
Enlarge
ISO 45001:2018
Occupational Health & Safety
Universal Certification Services (IAF / NAF)
Startup India - Certificate of Recognition
Enlarge
Startup India
Certificate of Recognition
DPIIT, Ministry of Commerce & Industry, Govt. of India
DGFT IEC Code - Importer-Exporter Authorization
Enlarge
DGFT IEC Code
Importer-Exporter Authorization
Ministry of Commerce and Industry, Govt. of India
ISO 9001:2015 - Quality Management System
Enlarge
ISO 9001:2015
Quality Management System
ICS International Certification (IAF / NAF)
ISO 14001:2015 - Environmental Management System
Enlarge
ISO 14001:2015
Environmental Management System
Universal Certification Services (IAF / NAF)
ISO 45001:2018 - Occupational Health & Safety
Enlarge
ISO 45001:2018
Occupational Health & Safety
Universal Certification Services (IAF / NAF)
Startup India - Certificate of Recognition
Enlarge
Startup India
Certificate of Recognition
DPIIT, Ministry of Commerce & Industry, Govt. of India
DGFT IEC Code - Importer-Exporter Authorization
Enlarge
DGFT IEC Code
Importer-Exporter Authorization
Ministry of Commerce and Industry, Govt. of India