Folding Door

Originality, sturdiness and durability

This door, called the Diamond, deserves its name: this innovative door is the most air and watertight in North America. It combines the Martin team’s knowhow with the originality, solidity and durability that you expect. Its unmatched air and water tightness is achieved by a multi-point lock anchored in 5 places as well as double weatherstripping.

This folding door is offered up to 16 feet wide with 7 panels. As with our other doors, it is equipped with 2 1/4 inches thick wood panels and a sill with a double drainage system. Opening the panels is effortless since they rest on the sill.

Obviously, this door’s security is a credit to the Martin collection. Optionally, we can offer an innovative retractable screen. Hardware is available in 3 colours: dark brown (standard), silver (option) or white (option).

Satisfaction   sur mesure

Energy Star    Eviromartin


Folding doors – Wood

  • Solid 6 58 inches finger-jointed pine frame assembled with screws.
  • 1 1/16 inches thick frame.
  • Secondary frame 2 1/4 inches thick serving as support to the panels.
  • Anodized aluminum head guide available in dark brown (standard), silver (optional) or white (optional).
  • Compression weatherstripping system (tan colored).
  • 2 1/4 inches thick, laminated solid Ponderosa clear pine door panels with a protective sealant.
  • Panels assembled and strengthened with 5/8 X 4 inches dowels.
  • Peripheral weatherstripping ensures optimal airtightness for heat and soundproofing, all the while preventing air and water infiltration.
  • Depending on the configuration, both the casement panel and tilt-turn options are easy to use, since they exist independently from the foldable panels.
  • Our standard: tempered double glazing at 1 inch (25 mm) thick with Low-E window film, argon gas and a high performance warm edge spacer.
  • Optional: tempered triple glazing at 1 1/4 inches (32 mm) thick with the same characteristics as previously mentioned for the tempered double glazing.
  • Multi-point locking system with a handle that controls the lock to the sill, frame and head. Depending on the configuration, the handle can be installed on the main panel, the casement or the tilt and turn window. Available colors: dark brown (standard), silver (optional) or white (optional).
  • The panels’ weight is fully supported by the rail system on the ground, ensuring smooth, gentle gliding.
  • Adjustable hinges and trucks allowing to adjust the door panels.
  • High-performance champagne-colored doorsill with a unique design and with PVC thermal break.

What is Ponderosa Pine?

Ponderosa pine also known as “Western Yellow Pine”, is the largest of the western pine species which grows in the southern interior of British Columbia. Having a straight trunk and usually growing up to 25 to 30 metres tall with a diameter of 2 metres, it is a large-crowned tree.

The wood is generally straight-grained and uniform in texture. Common uses of ponderosa pine include; furniture; window and door sashes, mouldings, and frames; panelling and shelving.

Wood comparisons:

Wood species Air dried (20% moisture) – Density
Ponderosa Pine 449 kg/m³
Northern White Pine 400 kg/m³
Douglas Fir 481 kg/m³


*Sources :,


Opening directions and models- Folding Doors

Here are the many configurations we have available.

The number of panels depends on the width of the opening, ranging from a minimum of 70 7/8 inches (1 800 mm)
to a maximum of 184 1/8 inches (4 676 mm), which measures to the outside of the frame.

We can also create custom-made models for your high-end projects.


Note : The addition of sidelites is optionally offered.


To add a personal touch…

Exterior finishing moldings

Exterior finishing moldings

Refinement for your wooden doors

An option that can be matched with the exterior finish trim of your Martin windows.


• Wood moldings
• Extruded aluminum moldings


Wood moldings:

• 1 9/16 X 7/8 inches pine exterior finishing moldings with a false shelf of 11/16”
• 3 1/2 X 1 1/8 inches pine exterior finishing moldings

Extruded aluminum moldings:

• Exterior finishing moldings 1 3/X 7/8 inches with 1.27 mm thick extruded aluminum
• Exterior finishing molding 3 1/2 X 1 1/16 inches with 1.27 mm thick extruded aluminum


Distinctive glass choices

Let the light inspire you

Martin Windows and Doors offer a wide variety of glasses and distinctive stained glasses that can both bring elegance to your door and create an atmosphere in your home.

Stained glass

Choose a door with stained glass and add a little touch of fantasy with a private, semi-private or clear finish.*



This new molding process produces designs with complex, pure lines and allows for the reproduction of different glass textures.*



This family of products is characterized by a process that applies ink to the glass surface, giving it a decorative appearance while maintaining your privacy.*


Textured or V-grooved

Our grooving process uses an engraving technique on sandblasted or glue chip tempered glass, allowing in light while maintaining your privacy.*


* Many possible configurations. Seek advice from our distributors in order to see the range of possibilities offered to you.

Simulated Divided Lites (SDL) and grilles

Simulated Divided Lites (SDL) and grilles


For a distinctive style and a special design, add wood or aluminum SDL on both sides of your sealed units (with or without spacer).


7/8 and 1 9/16 inches natural wood
7/8 and 1 9/16 inches extruded aluminum




Personalize your windows and doors with a variety of models and colours of grilles inside the sealed glass.



Styles of SDL and grilles

Some examples

Barrotins et carrelages

Moustiquaire rétractable

Phantom Distinction retractable screen

A practical elegance


Tilt and turn door


Tilt and turn active door

Confortable and secure ventilation

The tilt and turn mechanism allows for the active door to act as both a casement towards the interior of the house, and a ventilation source. This ventilation source is created by tilting the door’s upper panel towards the inside thus creating a small opening.

Since your bi-fold door can remain locked, this small opening lets you enjoy air circulation without sacrificing the security of your home.


Sturdy and safe multi-point locking system




Door sill

A unique design on the market

With its double water evacuation system and reinforced PVC insulating section, this door’s performance remains unmatched in the industry.

This sturdy, watertight sill is cladded with champagne coloured anodized extruded aluminium, sure to blend with all our paint and cladding colours.

Anodized steel door sills


Dark Bronze

Aluminum cladding and colour choices

Aluminum extrusions:
durability and easy maintenance

  • Combine the solidity of exterior cladding to the nobility of wood on the inside
  • The thickness of our extrusions is considerably superior to the sheeted aluminum offered on the market
  • Easy maintenance and corrosion resistant
  • Recyclable: an asset for the environment

Unlimited choice of colours

Our extrusions are painted with 3 coats of top quality acrylic polyurethane paint. They are then oven baked to ensure a perfect finish quality that is more resistant.

Standard colours

Optional colours

Here is a small sample of optional colours:

Our colorists can also develop for you the colour of your choice from the name and the colour code of a known paint manufacturer or from a colour sample. This gives you the freedom to give free rein to your imagination.

Take note that the colours above may vary slightly from a display device to another. Consult one of our distributors to have a more accurate sampling of our colours.


Finish equal to high end furniture

Enhances and protects the wood’s beauty

Wood is a natural, warm and versatile material. Careful protection by a quality stain enhances its resistance and durability.

Unequaled protection against bad weather and UV rays

Our stain acts like a shield. The stain’s natural oils and resins seep into the wood’s cellular structure to form a durable protective barrier.

Water-based stain: one more step for protecting the environment

With the introduction of water-based stain products, Martin is a forerunner that constantly continues its efforts to support sustainable development.


A touch of unequaled refinement

Our colour chart offers 30 lovely colours that enhance the wood’s natural richness. Factory applied, our stain is protected by two coats of varnish giving it a satin sheen.

Take note that the colours above may vary slightly from a display device to another. Consult one of our distributors to have a more accurate sampling of our colours.

Energy efficient glass

Combining an innovative glass unit
and an ultra-efficient spacer

To reduce energy consumption, Martin uses as standard energy efficient Low-E glass (4.2) with Argon gas combined to an air-tight spacer. Many of our products are ENERGY STAR® approved.

The best performance for energy efficiency


  • Reduces heat loss in winter
  • Keeps the interior cooler in the summer
  • Reduces heating and air conditioning costs between 5% and 15%
  • Prevents textile surfaces discoloration
  • Helps to keep a balanced humidity level in the house
  • Reduces condensation risks on the glass surface


The Sungate® 400 Low-E and argon energy efficient glass unit increases your comfort in many ways. This superior quality glass keeps you warm during winter’s cold nights and cool during the hot summer days. While allowing in the benefits of natural light, it also ensures a high level of energy efficiency.


The best warm edge spacer in the world:
Swisspacer Ultimate
It has the best thermal value in the world with a 20% reduction in thermal conductivity compared to the best product currently available on the market.

Energetic and structural performance

Energy Star® and NAFS standards

When evaluating energy performance ratings for your doors and windows, in addition to adhering to Energy Star’s standards, it is important to refer to the harmonized standard set by the North American Fenestration Standard (NAFS). The NAFS specification is more commonly known under the name of “structural performance tests.”

As well as evaluating air and water tightness, the NAFS standard evaluates a door or window’s resistance to natural elements such as strong winds.

In Canada, the standard’s minimum requirements are determined according to your region and its weather conditions.

Prior to purchase, it is important to confirm the minimum required Performance Grade (PG) for your region and the surroundings of your home (location, product height, type of land, etc.).

Easily get your minimum PG with the Fenestration Canada’s performance calculator.

Here below, our energetic and structural performance results:

Folding Doors – Natural Wood and Exterior Aluminum Cladding (PDF)