Larnec

Our 35mm - 37mm Depth Doors

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Easy installation

Easy door installation

Manufactured in Australia

Doors manufactured in Australia

Custom Options

Custom door design options

High quality materials and construction

Quality materials & construction

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Shop Our 35mm - 37mm Door Depth Range

Explore our 35mm to 37mm range and custom door depth options, ideal for industrial and commercial settings and various wall types. From durable and practical designs, our carefully crafted doors cater to the required door depths for stud walls, pre-cast concrete walls and steel frames. No matter your needs, we can manufacture the perfect doors for your project.

Sentry 650.37

Most popular

Sentry 650.37

Or

Sentry 200.47

Sentry 200.47

Pre-hung, dual-skin, fully metal-clad industrial personal access door for a secure solution.

Or

Sentry 200.80 Internal Door with Door Closer

Sentry 200.80

Dual-skin, 3-sided frame, fully metal-clad industrial door.

Or

Sentry 200.BF

Sentry 200.BF

Dual-skin, heavy-duty metal-clad container door system.

Or

Sentry 200.TP

Sentry 200.TP

Or

Sentry 200.PB

Sentry 200.PB

Or

Sentry 200.CD

Sentry 200.CD

Or

Sentry 250.PBRJ

Sentry 250.PBRJ

Or

Sentry 100.47-3S

Sentry 100.47-3S

3-sided frame, solid core, metal clad, pre-hung external industrial door.

Or

Sentry 200.47.3S

Sentry 200.47-3S

Or

Sentry 100.TP

Sentry 100.TP

Or

Sentry 100.80

Sentry 100.80

Or

Sentry 801.47

Sentry 801.47

Or

Sentry 650.37-3S

Sentry 650.37-3S

Or

Sentry 650.37.D

Sentry 650.37.D

Or

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Download Brochures & Specs

35mm - 40mm Custom Door Depths

Stud Wall Opening for 820mm Door

35mm Door Depths

We have a range of doors of 35mm depth, providing sleek and space-saving solutions suitable for various commercial and industrial settings.

Precast Concrete for 820mm Door

37mm Door Depths

Explore our range of 37mm door depth options, offering versatile choices for durability and style in commercial and industrial applications.

Steel Frames for 820mm Door

Custom 40mm Door Depths

We can create custom 40mm door depths catering to commercial and industrial needs, combining functionality and aesthetics for a reliable entrance solution.

Why Choose Larnec?

Choosing Larnec for personal access doors in industrial and commercial industries guarantees top-quality solutions tailored to your needs. Our expertise in crafting durable and reliable doors ensures that our doors meet your specs and the rigorous demands of industrial environments while enhancing functionality and security. 

Our commitment to precision craftsmanship, extensive range of materials, and personalised service sets us apart, providing you with the ideal doors to elevate your industrial or commercial space and deliver lasting value for your investment. Trust Larnec for unmatched excellence in personal access door solutions for industrial and commercial applications.

Solid Construction Of Our Doors

Standard Door Depths For Different Applications

Our standard door depths cater to diverse applications and wall types, offering versatility and functionality. Whether for commercial buildings or industrial facilities, our doors are tailored to meet unique needs, ensuring a perfect fit and enhancing accessibility while complementing the space’s design. At Larnec, we prioritise customer satisfaction through personalised solutions.

Stud Wall Opening for 820mm Door
920mm Solid Core Doors

35mm Depth External Doors

Our 35mm depth external doors provide sleek and space-saving solutions for commercial and industrial applications.

820mm Wide Solid Core Doors

35mm Depth Solid Core Doors

Experience the durability of our 35mm depth solid core doors, perfect for heavy-duty commercial and industrial facilities.

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Easy installation
Easy installation

We prioritise easy installation, providing doors designed for a straightforward and hassle-free setup, saving you time and effort during the installation process.

Manufactured in Australia
Australian Made

Larnec takes pride in being Australian-made, ensuring superior quality and craftsmanship while supporting local manufacturing and industry.

High quality materials and construction
Unrivalled Manufacturing Standards

We uphold unrivalled manufacturing standards, ensuring that every door we produce meets the highest levels of craftsmanship, providing customers with products that stand the test of time.

Custom Options
Industry-Specific Custom Options

We offer to tailor our doors to meet various industries’ unique needs and requirements, ensuring a perfect fit and functionality for specialised applications.

Door Sizes in 4 Steps

1

Get free advice

Talk to our team about your business needs, and we’ll recommend the right door solutions.

2

Order confirmation

We organise the contracts for your order and schedule your doors for production.

3

Manufacturing

We manufacture your doors in our Australian facilities using the Toyota Production System.

4

Delivery

Our national network will deliver to site, store, or consolidation centres nationwide.

TDS sample preview

Download brochures and specifications for all our doors

Get all the details you need to specify Larnec for your next project.

Post Entry Quarantine
CPB contractors

Post Entry Quarantine Facility

The Mickleham Post Entry Quarantine Facility is a consolidation of Australia’s PEQ operations where all imported animals and plants now complete their post entry quarantine.

Larnec and associated company Champion Stables were commissioned due to our ability to manufacture and project manage multiple custom elements of this Federal Government project

Frequently asked questions

What does a 35mm thick door mean?

A 35mm thick door refers to the thickness of the door lead and is Larnec’s standard specification for strength, durability, and performance.

Why choose a 35mm thick door?

35mm thickness provides a solid, rigid door that resists flexing and impact while remaining practical to install and operate.

Are 35mm doors suitable for sheds and garages?

Yes. 35mm thick doors are ideal for sheds and garages, where durability, frequent use, and environmental exposure are key considerations.

Are 35mm doors suitable for commercial applications?

Yes. When paired with appropriate frames and hardware, 35mm thick doors are well suited to many commercial and light industrial applications.

Does a 35mm door improve security?

Yes. 35mm thickness supports secure fixing of locks, hinges, and anti-burglary hardware, improving overall resistance to forced entry.

Is the frame depth also reduced?

Yes. Larnec 35mm doors are supplied pre-hung, with the door leaf factory-fitted into the frame for correct alignment and faster installation.

Can 35mm doors be customised?

Yes. 35mm doors can be customised with different width, heights, colours, hardware options to suit your application.

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Sentry 650.37 main
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Most popular

Sentry 650.37

Single-skin, metal-clad shed and garage personal access door.

Ideal for all types of sheds and garages

This single-skin, metal clad door is the perfect personal access shed door. With its steel facing, multi-fold profile and steel door jamb, the 650.37 metal shed door is quick and easy to install with no drilling on site required.

Our Sentry 650.37 personal access door for sheds and garages is durable, built to last and wind rated certified, making it the market leader in the shed and garage industry. Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm x 820mm, with 920mm and 1100mm available.

Applications

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Sentry 650.37 3 Sided
Sentry 650.37 3 Sided 1
Sentry 650.37 3 Sided 2
Sentry 650.37 3 Sided 3
Sentry 200.47 Main
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Sentry 200.47

Pre-hung, dual-skin, fully metal-clad industrial personal access door for a secure solution.

Australia’s leading cyclone-rated industrial door

When it comes to the Sentry™ 200.47, you’ll be hard pressed to find a competing product that matches the specification and quality of this high-security PA door. Our fully metal clad personal access door can be used for sheds and garages that need a durable, reliable PA door for increased security.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with a standard door size of 2040mm x 820mm, with 920mm and 1100mm available. We can also manufacture inwards opening doors when external clearance is tight and your structure need another solution.

Applications

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Sentry 200.47 Food Processing Plant
Sentry 200.80 Internal Door with Door Closer
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Sentry 200.80

Dual-skin, 3-sided frame, fully metal-clad industrial door.

A versatile, heavy-duty door solution for industrial settings

Our 3 sided frame, fully metal-clad door is the perfect personal access (PA) door for the industrial/commercial sector. This industrial door can be used within brickwork, steel and timber stud and concrete panel structures.

On request, we can accessories this door with perimeter door seals and threshold plates to effectively contain issues with weather and dust penetration. The low profile ensures accessibility for people with disabilities.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with a standard door size of 2040mm x 820mm, with 920mm and 1100mm available. Custom sizing is available.

Applications

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Sentry 200.80 Internal Door with Door Closer 1
Sentry 200.80 Custom Door with Air Relief Grilles Toilet Block
Sentry 200.BF Portable Toilet Block Woodland Grey
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Sentry 200.BF

Dual-skin, heavy-duty metal-clad container door system.

An excellent access solution for upcycled shipping containers

The Sentry™ 200.BF is a fit for purpose PA door manufactured for fast and easy installation to meet the needs of installers when modifying shipping containers for industrial and commercial use, which is what makes it our most popular product in the shipping container range. 

Our Box Frame design has been engineered to protect the door jamb from distortion during the welding process or can be screw fixed to the container according to your installation needs. With a medium density polystyrene core, this pre-hung door can be fully customised with options such as viewing panels and air relief grilles and be immediately installed.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm(h) x 820mm(w), with 920mm(w) and 1100mm(w) available as standard, and high sizes or custom sizing available.

Applications

Image Gallery

Sentry 200.BF Portable Toilet Block
Sentry 200.BF Portable Toilet Block 1
Sentry 200.BF Portable Toilet Block 2
Sentry 200.BF Larnec Container
Sentry 200.BF Larnec Container 1
Sentry 200.TP Outward Opening
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Sentry 200.TP

Dual-skin, metal-clad and pre-cast tilt panel door system.

Ideal for industrial and commercial pre-cast building

The market-leading Industrial P.A door for garages, warehouses and all industrial buildings. With a 4-sided external door jamb and 3-sided internal trim, the door leaf is fully metal wrapped and sealed for a clean, durable finish..

These industrial doors are prepped for locks and have our own dual quad fastening system. They can also be retrofitted for easy installation. There will be no need to pre-cast the jamb, and no external fixings or internal finishings are required.

Applications

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Sentry 200.TP Industrial Facility
Sentry 200.TP View Panel
Sentry 200.PB.1
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Sentry 200.PB

Dual-skin, fully metal-clad industrial personal access door.

The market’s leading fully metal-clad industrial door for portable buildings

These doors have been designed and engineered to meet the strenuous demands that are associated with transportable and modular buildings.

Fully metal clad and semi-solid, these steel facing doors are pre-hung into one of 4 door frame options, and are powder coated to suit. Fitted with perimeter doorframe seals to counter the most violent dust storms and unfavourable weather, these doors are also supplied with a quality knob/lever (egress) exit set and three industrial-grade hinges.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm(h) x 820mm(w), with 920mm(w) and 1100mm(w) available as standard, with high and custom sizes available.

Applications

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Sentry 200.PB.5
Sentry 200.PB.1
Sentry 200.CD
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Sentry 200.CD

Dual-skin, fully metal-clad container personal access door.

The ideal personal access door for modified shipping containers

A simple retrofitted external door solution for shipping containers. These metal clad, pre-hung doors require an RHS framework within the container wall. 

Externally fitted, these shipping container doors also come with a quality flush lock as standard. This door can be fitted anywhere on your container and has universal/reversible handling.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm(h) x 820mm(w), with 920mm(w) and 1100mm(w) available as standard.

Applications

Sentry 250.PBRJ
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Sentry 250.PBRJ

Fully metal-clad, dual-skin, industrial personal access door.

A superior fully metal-clad industrial door for portable buildings

These doors are the product of special engineering for the exacting demands of modular and transportable buildings.

Semi-solid and fully clad in metal, these steel doors are pre-hung for 4 door frame options, with powder coating to suit. Featuring a doorframe seal to counteract the most arduous weather, these doors also include a high-calibre knob/lever exit set plus industrial-grade hinges.

Applications

Sentry 100.47-3S
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Sentry 100.47-3S

3-sided frame, solid core, metal clad, pre-hung external industrial door.

Australia’s best industrial door

This is our highly popular fully metal-clad industrial door for factories, industrial sheds, steel buildings, and warehouses. 

The 100.47 (3S) incorporates a solid core with 3-sided door jamb. It comes pre-hung and is ready for door closers, locksets, and installation. Fabricated according to the most rigorous safety standards, the door is in full compliance with escape functions.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm(h) x 820mm(w), with 920mm(w), 1100mm(w) and high sizes available.

Applications

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Industrial Springchain Retainer
100.47 Double Lever Lockset
100.47 Knob Lever Lockset
100.47.3SF View Panel Shale Grey
Sentry 200.47.3S thumbnail
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Sentry 200.47-3S

Fully metal-clad, dual-skin industrial personal access door.

Australia’s premier industrial personal access door

The Sentry™ 200.47-3S is the paramount Industrial PA door for warehouses, industrial sheds, factories, and steel buildings.

Our fully metal-clad PA door can be used for industrial applications that require a durable and dependable door that is highly secure.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with a standard door size of 2040mm x 820mm, with 920mm and 1100mm available. We can also construct inwards opening doors if external clearance space is tight.

Applications

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Sentry 200.47 3 Sided
Sentry 200.47 820 3SF - Walkway Access Door 920
sentry 100.TP Industrial Tilt Panel Door Warehouse
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Sentry 100.TP

Solid core, pre-hung, retrofit metal clad tilt panel door system

Australia's high-calibre tilt panel door of choice

This tilt panel door is a fit-for-purpose solution for all types of commercial and industrial buildings.

The 100.TP is pre-cast and metal clad. It incorporates a 4-sided external door jamb plus a 3-sided internal trim, finished with full metal wrapping then sealed for a finish that is strong and resilient.

Our commercial doors come ready for locking function through dual quad fastening system. For existing buildings, our 100.TP is easily retrofitted. There is zero need for precasting jambs, internal finishing, or external fixings.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm(h) x 820mm(w), with 920mm(w) and 1100mm(w) available as standard, and high sizes or custom sizing available.

Applications

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sentry 100.TP Industrial Tilt Panel Door
sentry 100.80 3-Sided Internal Door
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Sentry 100.80

Multi purpose, 3-sided, pre-hung, solid core, fully metal-clad industrial door

Australia’s leading 3-side, pre-hung industrial door

The Sentry™ 100.80 is an unrivalled high-calibre industrial door for warehouses, processing facilities, and commercial buildings.

This 3-sided, multi-purpose, fully metal-clad, solid core industrial door is pre-hung and can be immediately installed. Installation should always be carried out by a fully qualified tradesperson.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm(h) x 820mm(w), with 920mm(w) and 1100mm(w) available as standard, and high sizes or custom sizing available.

Applications

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sentry 100.80.820D Surfmist 01
sentry 100.80.820D Surfmist 02
sentry 100.80 3-Sided Internal Door
Stable Day Yard Door OpenIntoDayYard
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Sentry 801.47

The perfect solution for barns and stables in the equine market.

The Sentry 801.47 Stable Day Yard Door is the perfect solution for barns and stables in the equine market.

This fully powder coated, split swing stable door can be opened just at the top to allow the horse some fresh air and a view. It can also be used as a standard exit door into an exercise area or paddock.

Our stable doors come with steel panels for longevity and are prehung, making them easy to install — and the number one day yard door choice for every stable or stable complex.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2400mm(h) x 1100mm(w), with custom sizes available.

Applications

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Sentry 801.47 stable door 1
Sentry 801.47 stable door
Sentry 801.47 stable door 2
Sentry 801.47 stable door 3
product image 650.37-3 sided
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Sentry 650.37-3S

3-sided metal-clad shed and garage personal access door.

Perfect 3-sided shed and garage door

This 3-sided, single-skin, metal clad door is the ideal shed door for personal access. With its steel facing, multi-fold profile and steel door jamb, the 650.37-3S metal shed door is quick and easy to install with no drilling on site required.

Our Sentry 650.37-3S personal access door for sheds and garages is durable, built to last and wind rated certified, making it the market leader in the shed and garage industry. Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm x 820mm, with 920mm and 1100mm available.

Applications

Sentry 650.37.D product
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Sentry 650.37.D

Single-skin, metal clad shed and garage personal access double door.

An ideal double door for domestic sheds and garages.

This single-skin, metal clad double door is the perfect, personal access shed door. With its reversible door handing, steel facing, multi-fold profile and four-sided steel door jamb, the 650.37.D metal shed door is quick and easy to install where a single door is just not enough.

Our Sentry 650.37.D personal access door for sheds and garages is durable, built to last and ideal for steel structures, including garages, domestic sheds and farm sheds, making it the market leader in the shed and garage industry.

Available in the complete Classic & Contemporary ranges of COLORBOND steel colours, with standard door size of 2040mm(h) x 820mm(w) x2, with 920mm(w) x2 available.

Applications