Lacuna
patio doors


We give you the opportunity to get a beautiful patio door that matches your folding doors. Our patio doors are made to the same principle as our folding doors, to ensure top quality.

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CHOICE OF
MATERIALS

It is possible to choose from a number of wood species for your patio door: oak, beech, pine and mahogany. At Lacuna, we use environmentally friendly processes in our treatment of the wood, which make it as maintenance free as wood / alu. Please read about our TMT Composite® treatment below.

TMT Composite®

TMT Composite® (Thermal Motified Timber) is the concept of Lacuna’s advanced heat-treatment, which we use on beech, oak and pine for the patio doors. No chemicals whatsoever, only heat, is used in the treatment. Through the TMT® process the timber obtain durability class 1, as teak, and a humidity of about 5.5%, making the modified timber very suitable for folding doors, as dimensional stability is extremely important for an airtight product that should not need adjustment during changing weather conditions (moisture / drought).

The TMT Composite® also provides much better insulation, as the wood cannot absorb moisture like untreated wood. The result is a patio door that lasts for many, many years.

Lacuna foldedør træ

MAHOGANY
AND OAK

We can also supply European oak and FSC certified sapele mahogany, without TMT Composite® treatment, oiled in a number of color tints.

Lacuna foldedør FSC Wood

SURFACE
TREATMENT OPTIONS

It is possible to chose among a number of surface treatments – either painted or oiled.
More than 90% of what we manufacture is painted TMT beech. We can paint in all colors, and also in transparent paint with UV filter on e.g. TMT Composite® pine.

We at Lacuna paint our patio doors like in the automotive industry, priming our products twice with sanding inbetween and applying two or three layers of top coat, depending on colour. The result is a super smooth surface (many believe it is painted aluminium) that is much more durable than through the traditional technique used in the window industry.

PAINTED
SURFACES

In line with our principles, we only use environmentally friendly, water-based and proven durable paints.

You can choose from a large number of RAL and NCS colors.

For items that are not particularly exposed, no paint treatment is required the first 25-35 years.

OILED
SURFACES

In cases where you want our products in oil-treated mahogany or oak, we use a turpentine-based oil that seals the surface of the wood and preserves it significantly better than water-based oil.

Please be aware that oil-treated products must be maintained with oil at least once a year depending on the weather exposure.


COLOUR
COMBINATIONS

Modern buildings often have dark frames externally. Here often a lighter, possibly white colour is chosen internally. We can paint our patio doors in two or three colour combinations – also if desired, for example, oiled mahogany combined with a white colour.

Some options are:

  1. Combination of RAL 9005/9010
  2. Combination of RAL 7016/9010
  3. Oiled mahogany, teak stain combined with 9010
  4. Oiled mahogany, teak stain
  5. Mahogany with black stain oil

We can also paint several types of texture as well as a colourless paint – like varnish.

Glass

The glass is a major part of a patio door. It is therefore important that the choice of glass is correct. Besides two or three-layer glass, the patio door can be supplied with glass that meets different requirements and functions. We only use quality glass from the leading glass manufacturers for the construction industry. We offer a wide selection and will readily advise you.

Please note that the more energy-efficient glass you choose the greater care you take of the environment. It is worthwhile investing in energy-efficient glass as the door and glass are built to last for many years.

MILLIMETRE
PRECISION

All the work is done on CNC robots with a precision of a tenth of a millimetre.

Our quality control and CNC robots eliminate the risk of human error and too large tolerances.

SIZE AND
OPENING

The Lacuna patio doors are manufactured to your wishes and can be up to 100 cm wide with two layers of glass and 90 cm with three layers of glass.


DESIGN DETAILS

Lacuna offers flexibility in its design. This means that you can freely choose whether you want your patio doors without glazing bars, with helima integral bars, standard glazing bars, panels or perhaps with breaking transoms.

GLAZING BARS

You have the option of choosing many different widths of the bars: 19 mm, 25 mm, 36 mm and 42 mm, with different types of profiles. In addition, you can get transoms (horizontal post) in 55 mm, 75 mm and 110 mm.

LARGE NON-BROKEN
SURFACES

The majority of our customers choose a door without glazing bars or fillings.
The wide door leaves, in a very thin frame, give a stylish and simple impression.

Lacuna helårshus foldedør billeder

PATIO DOOR
GLAZING BARS

Lacuna manufactures several different types of glazing bars and transoms. Most of the customers who want glazing bars in their patio door choose 25 mm moulded bars with what we also call farmhouse profile on the inside. This design is also available in widths of 19mm, 36mm and 42mm. For all widths, an internal softline profile is also available, which gives a simple and modern impression that matches the style of new buildings. All of our glazing bars are externally tenoned in the frame (not glued to the glass) and cannot fall off.

Lacuna helårshus foldedør billeder

HELIMA
GLAZING BARS

As an alternative to the traditional glazing bars, we also offer Helima bars. There are bars built in between the glass panes. Thus, there are no bars on the outside or inside of the door. Helima is price-attractive and has a great advantage when it comes to cleaning. The bars are available in several widths: 18mm, 26mm and 45mm.


TRANSOMS/
HORIZONTAL POSTS

If you want wider posts, we also make 55 mm, 75 mm and 110 mm horizontal transoms. These are continuous and thus divide the glass in the door. The transoms are, of course, completely integrated into the design of the frame.


PANELS

Lacuna also supplies panels that are flat or raised. The panels are not solid but laminated with a high-insulating material for the best possible insulation. Panels are supplied in the same colour as the door.


HINGES
AND HANDLES

The Lacuna products can be exposed to powerful corrosive forces in e.g. Greenland and other coastal areas, with sometimes up to 7% salt content in the water.

At Lacuna we do not distinguish between where the elements are to be installed. All Lacuna products are manufactured in the same high quality.

HINGES, HANDLES ETC.
IN CORROSION-RESISTANT MATERIALS

We want the door including ironmongery to stay beautiful without corrotion for its entire life. We know that there are many different conditions that affect ironmongery. Particularly coastal areas can be a challenge for the stainless steel, so all parts are therefore treated with protective oil. Lacuna recommends regular maintenance and washing to keep the ironmongery and door clean.

All hinges and handles are made of stainless steel and are available in black, white or steel.
Please read our maintenance guide.