Hollow Metal Doors

Doors made of hollow metal consist of a metal frame and a metal skin or infill. Because they are strong, long-lasting, and fireproof, commercial and industrial buildings frequently employ them. Hollow metal doors can be single or double-leaf, depending on the width of the opening they are meant to fit, and they are typically made of steel or aluminum. In order to boost their energy efficiency, they may also have a choice of insulation materials, such as honeycomb or polystyrene cores. Most of the time, hollow metal doors are used on the outside, but they can also be used inside if you need a strong, long-lasting door. To complete the door assembly, they are frequently paired with a metal frame and hardware like locks, hinges, and handles.


What kinds of hollow metal doors are there?

There are a few different kinds of hollow metal doors that are frequently found in industrial and commercial structures:

Doors with Standard Duty: These are the most prevalent variety of hollow metal doors. They are suitable for the majority of standard commercial and industrial buildings and are typically used in interior applications.
Doors Built to Last: These doors are typically used in exterior applications or high-traffic areas because they are stronger and last longer than standard-duty doors.
Fire-Rated Doors: The purpose of these doors is to stop the spread of fire for a certain amount of time. In particular kinds of buildings or at specific points within a building, they are frequently required by building codes.
Doors with Sound: The purpose of these doors is to prevent sound from passing through them. They are often used in hospitals, schools, and office buildings where noise control is important.
Doors with Lead Lines: To protect against radiation, these doors have a layer of lead on one or both sides. In laboratories and medical facilities, they are frequently used.
Doors that resist blasts: The purpose of these doors is to withstand an explosion's effects. They are frequently utilized in buildings that are susceptible to explosions caused by terrorists or other types.


What functions do hollow metal doors serve?

Numerous commercial and industrial buildings use hollow metal doors, such as:

Offices: Because they provide privacy and noise control, hollow metal doors are frequently utilized as interior office doors.
Schools: As classroom doors and in other locations where fire resistance and durability are crucial, hollow metal doors are utilized in schools.
Hospitals: In hospitals, hollow metal doors are used for a variety of things, like room dividers, entrance doors, doors to laboratories, and doors to other areas where hygiene is important.
Retail outlets: In retail establishments, hollow metal doors are utilized as storage doors and entrance doors.
Manufacturing facilities: In industrial facilities, hollow metal doors are used as exterior doors, doors to warehouses and storage areas, and doors to hazardous areas.
Public spaces: In public buildings like courts, libraries, and government offices, hollow metal doors are used.
Residential structures: Exterior doors made of hollow metal are sometimes used in residential buildings, especially condominiums and apartment buildings.


What makes hollow metal doors superior?

Hollow metal doors are a popular choice for commercial and industrial buildings due to their numerous advantages:

Durability and toughness: Steel is used to make hollow metal doors, which are strong and last a long time. They are resistant to damage from impacts and can withstand heavy use and wear.
Resistance to fire: Hollow metal doors are a good option for buildings where fire safety is a concern because they typically resist fire.
Soundproofing: Because some hollow metal doors are made to block out sound, they are a good choice for buildings like schools and hospitals where noise control is important.
Versatility: Hollow metal doors can be used for a lot of different things and can be made to fit the needs of a building with a variety of finishes and hardware options.
Easy to maintain: Hollow metal doors are a convenient option for busy commercial and industrial buildings because they require little upkeep and are simple to clean.


Why is Synergy Thrislington the best option for hollow metal doors?

Synergy Thrislington is the best company for hollow metal doors due to a number of factors. The following are some factors:

Construction and material quality: Synergy Thrislington is known for producing high-quality hollow metal doors that meet the needs of its clients.
Variety of choices: Hollow metal doors in a variety of sizes, styles, and configurations are available from Synergy Thrislington to meet the specific requirements of a wider range of customers.
Capabilities for personalization: Hollow metal doors from Synergy Thrislington can be made to fit the specific requirements and preferences of its clients.
Affordable pricing: Customers who are concerned about their budgets can take advantage of Synergy Thrislington's competitive pricing on hollow metal doors.
Excellent service to customers: Synergy Thrislington is known for offering flexible payment options, prompt response times, and excellent customer service.
Strong standing: Synergy Thrislington has a strong reputation in the hollow metal door industry due to the quality of its products and excellent customer service.


Hollow Metal Doors that Synergy Thrislington provides:

Synergy Thrislington doors are designed to serve different market segments such as pharmaceutical clean rooms, operation theaters, cold rooms, cold stores, offices, hotels, and commercial complexes. Synergy Thrislington's design and application team are capable of providing tailored made solutions beyond generic requirements as well.

The material used for door skins is chosen to meet application requirements through it is galvanized iron in most cases. Stainless steel or wood can also be used depending on the application's need. Infill material is selected as needed, it can be kraft with a honeycomb structure, mineral wool, or PUF. Additional design features such as dust seals make Synergy Thrislington doors a popular choice with end users, specifiers,s and contractors.


Metal Doors

Synergy Doors are specifically tailored to fulfill each and every requirement of the market with the use of galvanized/stainless steel. Sunergy Doors are available in different specifications to achieve various requirements of our clients The single/double leaves can provide DOP( Door Ovre Panels). The final finish can be of the required RAL  shade or with a wood veneer of the desired colour.


Fire Rated Doors

Fire Rated doors with the fire-resistance rating are used as part of a passive fire protection system to reduce the spread of fire between compartments and to enable safe egress from a building or structure. Synergy offers fire-rated doors with seamless joints having fire-rated infill materials & fire resistant levels from 60 minutes to 4 hours all tested to BS 476 Part 22, ( CBRI & Warrington). These doors can be made in single or double doors with a fire-rated glazing option and with desired pure polyester powder coating (60-80 microns) RAL shade.


Clean Room Doors

Clean Room Door is manufactured from galvanized/stainless steel sheets with lock-formed edges. Insulated and bonded with honeycomb paper, mineral wool, or polyurethane foam forming a rigid flush fitting with; innovative flush double-glazed finished with pure polyester powder coating of 60-80 microns forming a smooth surface finish.


Glass Glazed Doors

Heavy-duty industrial metal doors are available in sizes up to 3000 mm wide, and 3000 mm in high. Doors are capable of accepting glazing in many configurations with air vents, louvers, and a wide range of hardware. Doors are pure polyester coated achieving a coating thickness of 60-80 microns forming a smooth surface finish.


Acoustic Doors

Acoustic Door is designed to reduce sound transmission between rooms and to provide sound privacy in any architectural environment. Synergy offers acoustic doors with special linings, seals, and structurally bonded cores to achieve a high level of sound reduction (40DB).


Synergy Thrislington's Door Specifications


Fire Rated Door Specification

Test Standard: 2hrs and 4hrs fire-rated metal doors are tested to BS  476 part 22 from Warrington (UK) and CBRI, Roorkee (Indian Fire Test Agency)
Type: Single/Double Leaf 4 Leaf Folding / Sliding Doors 
Leaf thickness: 44 mm thick (different thicknesses available as per specific requirement)
Leaf and Frame: Galvanized Steel, Stainless Steel Material
Door Leaf: 44 mm thick with sheet thickness of 1.0 mm (different thickness available as per specific requirement)
Door Frame: Frame Jamb Thickness 125 x 45 mm with 1.5 mm sheet thickness (Single rebate or double rebate)
Infill: Rockwool / Honeycomb
Reinforcement: As per fire-rated door norms
Fixing: With steel fastener bolt (concrete filling not required as per our design)
Finish: Doors are coated with pure polyester / epoxy-polyester powder achieving a coating thickness of 60-80 microns. (Powder coat in standard RAL colors)
Glazing: 6 mm thick clear fire-rated glass/wired glass
Ironmongery:  SS ball bearing Hinges, Latch Lock, Door Closer, Panic Bar, etc
Handling: Left or right as needed. ( Construction can be tailored to meet specific requirements.)


Non-Fire Rated Door Specification

Type: Single/Double Leaf
Leaf thickness: 44 mm thick ( as per specific requirement)
Leaf and Frame: Galvanized Steel, Stainless Steel Material
Door Leaf: 44 mm thick, Shutter standard sheet thickness 0.6 mm to 0.8 mm thick, and sheet thickness up to 3 mm (Seamless type) for specific requirements. 
Door Frame:  Frame size 125X45 mm, Single rebate (Double rebate available on request) Sheet Thickness 1.0 mm to 1.2 mm.
Infill: Honeycomb / PUF
Reinforcement:  At hinges. door closer and lock case fitments.
Finish: Doors are coated with either pure polyester or epoxy-polyester powder achieving a coating thickness of 60-80 microns.
(Powder coat in standard RAL colours)
Glazing: 6 mm toughened glass/float glass
Ironmongery:  SS ball bearing Hinges, Latch Lock, Door Closer, D Handle, etc.
Handling: Left or right as needed. ( Construction can be tailored to meet specific requirements.)




following are some frequently asked inquiries regarding hollow metal doors:

What materials comprise hollow metal doors?
Steel is the most common material for hollow metal doors, but it can also be made of aluminum or other metals.

Can hollow metal doors withstand fire?
Yes, numerous hollow metal doors are constructed to resist fire and can withstand the effects of a fire for a predetermined amount of time.

Can hollow metal doors be painted?
A wide range of finishes, such as enamel or epoxy, can be used to paint hollow metal doors.

Are hollow metal doors insulated?
Although some hollow metal doors are made to be insulating, they generally do not perform as well as doors made of solid wood or with foam insulation.

Are wood doors more expensive than hollow metal doors?
Wood doors typically cost more, but hollow metal doors are more durable and require less upkeep, which may make up for the initial higher price.

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