Larnec

Personal Access Doors for Precast Concrete Walls

Quality doors and frames for precast and tilt panel walls

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Custom Options

Custom options to suit your business

High quality materials and construction

High-quality materials and construction

Manufactured in Australia

Manufactured in Australia

Easy installation

Easy installation

No fuss, precast and retrofitted doors for concrete walls

Keep your staff and assets safe and secure with strong, compliant personal access doors. Need a custom size? Our team can manufacture an internal or external door to your exact requirements using the latest technology to ensure optimal durability, regulatory adherence and safety.

Our products can also be upgraded to meet any special requirements, such as cyclone or wind resistance.

Sentry 200.TP

Sentry 200.TP

Or

Sentry 100.TP

Sentry 100.TP

Or

Sentry 200.80 Internal Door with Door Closer

Sentry 200.80

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

Or

Sentry 100.80

Sentry 100.80

Or

air relief grille product

Air Relief Grille

TDS sample preview

Download brochures and specifications about PA & commercial doors for precast concrete

Australian Made Logo

Larnec, proudly Australian made

We manufacture quality doors for precast concrete

Larnec Doors specialises in designing and manufacturing high-quality doors. Our range of doors can easily be precast or retrofitted to any precast tilt panel or concrete wall.

With our dedication to careful packaging and safe delivery, you can rest assured our doors will help your project reach lock-up as soon as possible.

  • It’s easy to retrofit our doors on-site
  • Heavy-duty construction for durability and long life
  • Standard and customisable sizes to ensure a perfect fit
  • High-quality materials for a professional look
  • Delivery updates through our National Network Partners
  • Secure pallet and crate packaging to minimise damage
precast concrete secondary
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Get advice on doors for a precast concrete door threshold

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Custom Options
Custom options to suit your business

All our doors come with a variety of options for hardware and accessories. We can also design and manufacture custom doors to suit your needs.

High quality materials and construction
High-quality materials and construction

Our doors are robust and durable enough to withstand heavy use and harsh conditions, and they will last for many years to come.

Manufactured in Australia
Manufactured in Australia

All our doors are manufactured in our Australian facilities to the highest quality standards. You can expect a consistent result every time.

Easy installation
Easy installation

Our doors can be easily installed on-site without the need for numerous tools and helpers.

precast concrete secondary 2

Speedy delivery of PA and commercial doors for precast concrete walls

Wherever your commercial or industrial business is situated in Australia, we can arrange prompt, hassle-free delivery. We offer transparent tracking through our National Network Partners. We also ensure our products arrive in optimal condition so you won’t experience any hassles or delays. Cost-effective, prompt and professional, our delivery services are second to none.

Simple installation

As part of our commitment to providing a complete door solution, all of our doors are pre-hung and can be precast or retrofitted to help you avoid delays and reduce costs on your project. We can also arrange delivery directly to your site location so you can reach lock-up in no time!

Precast Cocrete Door Frames in 4 easy steps

1

Get free advice

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

We deliver to site, store or consolidation centre for consolidation for shed kits for installation.

TDS sample preview

Download brochures and specifications for all our doors

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

Frequently asked questions

I need a door for a precast concrete threshold. What are the benefits of using Larnec Doors?

There are several benefits to using Larnec Doors for precast concrete thresholds. Our doors are strong and durable, and they can provide a good sound barrier. We have wind, fire and cyclone-rated doors and customisable sizes. Larnec Doors are also easy to install, require minimal maintenance and create a professional look for your business with powder coating options and high-quality masonry and finishes.

What type of masonry do doors for precast concrete require?

Doors for precast concrete typically require a masonry opening of at least 1200 mm x 2400 mm. However, the specific requirements will depend on the door size and project requirements.

Is precast concrete a load-bearing wall?

Yes, precast concrete can be used as a load-bearing wall. However, you will need to consult an engineer or architect to ensure that the precast concrete is suitable for the specific project requirements.

What are the benefits of using metal-clad doors in a concrete wall?

There are several benefits to using a metal cased door in a concrete wall or door threshold. Metal doors are durable and can provide a good sound barrier. They are also easy to install and can be used to create a variety of different designs. Larnec can supply your business with strong and hard-wearing metal-cased doors for any precast concrete application.

How do I install a door frame into a concrete wall?

Use a concrete saw to cut an opening in the concrete wall. The size of the opening will depend on the door frame. Install the door frame into the opening and then secure it with screws or bolts. 

If you require help, contact our team, as cutting concrete carries a high risk of injury and damage to property.

What is the difference between precast concrete and poured concrete?

Precast concrete is made by pouring concrete into a mould and then curing it. Poured concrete is made by pouring concrete into an open area and then letting it cure. Precast concrete is typically stronger than poured concrete making it ideal for industrial and commercial settings.

How do you cut a concrete wall for a door?

You will need a saw with a diamond blade to cut concrete. Wear safety gear, including gloves, a mask, and eye protection. Mark the area you want to cut and ensure the saw is level before beginning to cut.

About Larnec personal access doors

Larnec is Australia’s leading door manufacturer. Our quality commercial and domestic pre-hung Sentry™ door solutions are designed and engineered to meet and exceed requirements across a range of industries and applications, withstanding the harshest of Australian weather conditions.

As a family owned business, we produce a range of quality, customised, and competitively priced door solutions for the shed and garage market, shipping container modifications, transportable buildings, and commercial and industrial sectors.

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Sentry 200.TP Outward Opening
Australian Made Logo

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

Image Gallery

Sentry 200.TP Industrial Facility
Sentry 200.TP View Panel
sentry 100.TP Industrial Tilt Panel Door Warehouse
Australian Made Logo

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

Image Gallery

sentry 100.TP Industrial Tilt Panel Door
Sentry 200.80 Internal Door with Door Closer
Australian Made Logo

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 customise 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

Image Gallery

Sentry 200.80 Internal Door with Door Closer 1
Sentry 200.80 Custom Door with Air Relief Grilles Toilet Block
sentry 100.80 3-Sided Internal Door
Australian Made Logo

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

Image Gallery

sentry 100.80.820D Surfmist 01
sentry 100.80.820D Surfmist 02
sentry 100.80 3-Sided Internal Door
air relief grille

Air Relief Grille

Our Venttec Air Relief Grilles help relieve pressure in between rooms. They come in a range of sizes and are ideal for domestic and commercial installations.

Applications