What kind of doors can we buy? There is a wide variety in terms of materials, opening systems, measures or whether they should be used indoors or outdoors

door types

There are different ways to classify the large number of types of existing doors. Each of these classes offers a solution for a type of need. Some are designed to be cheap, others to withstand the weather and others to save a few inches of space.

Interior doors

We will use several criteria to classify or catalog internal ports:

According to the opening system

Folding. They are the ones that open at an angle to the wall. It is a more traditional and frequent opening method, in which the hinges are used to fix the door to the frame and allow its opening. We can find both with a leaf and two. The disadvantage of this type of door is the opening, which requires a free space.

Sliding or sliding doors. They are also a very frequent option and the choice of those looking to gain a few centimeters. They can also be composed of several leaves.

  • In this case, the sliding system is fixed to the wall or ceiling and the door runs parallel to the wall. The great advantage is that it does not require work.
  • Interior or built-in. In this case, the sliding door is inserted into the wall, leaving even more free space. Installation is more complex as it requires the frame to be inside the wall.
folding and pivoting doors

Pivoting. In this case, the door rotates based on a vertical axis using rotating screws. It is a class of doors that goes beyond the conventional and that allow wide leaves.

Folding. They consist of several slats that fold over each other to allow passage. It is a solution that also saves space compared to folding ones.

According to their composition or materials

  • Empty or framed.
    • Alveolar or “Bee’s nest”. It consists of a honeycomb-shaped structure, made of cardboard inside a wooden frame and later covered with veneer. They are the most common and cheapest type of interior door. They are also a lightweight solution.
    • Although honeycomb interior doors currently dominate the market, they have not always been manufactured with this type of cardboard structures. Years ago it was common to find doors with straw, today it is also possible to find doors with foam and other materials.
  • Plated. These are essentially doors where relatively cheap materials, such as chipboard or MDF, are used for the interior of the door. Subsequently, they are covered with sheets of wood or even MDF specially adapted for painting or varnishing. On some occasions, the interior of the chipboard is drilled to reduce the weight of the door, these are known as tubular. Many manufacturers consider veneered doors to be solid. This is not necessarily a mistake, although it confuses many consumers who understand as solid those that are entirely made of natural wood.
  • Solid. As the name suggests, they are doors made of a solid material, usually wood. Depending on the type of wood used, it can also be considered an exterior door. Oak is one of the most used species for the manufacture of doors.
  • Aluminum. Aluminum is a very versatile material that has gradually been introduced in many areas. Offers virtually no resistance and maintenance.

It is very possible and even frequent to combine several of these materials with others, such as glass, or even between them.

Interior door finishes

The most common finishes applied to interior doors are:

  • Raw. When the door is purchased without any finishing.
  • Painting. Today it is rare to find doors sold with enamels. Where we find them, it is because the owners have applied them. Although there are different qualities, very few achieve that of lacquers.
  • Varnish. A classic in the world of wood that guarantees quality and durability.
  • Lacquered. It is a tough and durable finish. Highly sought after a few years ago. It is also common to find pre-lacquered doors. In this case, although at first glance it looks like it is ready, it is not. You will need to apply at least 2 or 3 layers of varnish if you really want a quality finish and durability.
  • PVC, melanins and other plasticized. Increasingly frequent, as they offer a very low cost and acceptable quality.
  • Crystal. In cases where crystals exist, they will usually be tempered or laminated.

Internal door measurements

Currently the door measurements are quite standardized. These are:

  • 203 × 62.5 centimeters.
  • 203 × 72.5 centimeters.
  • 203 × 82.5 centimeters.
  • 203 × 92.5 centimeters.

The normal thing is that if you need a door that goes beyond these measures, it must be a work by order or by order. In these, the price tends to rise significantly.

External or entrance doors

In this case, we will focus on the composition of the exterior door rather than the opening systems, which are essentially the same, although undoubtedly the most common is that they are hinges.

Types of external doors according to their composition

  • Armored. Armored doors offer the greatest impact resistance. In this case, both the frame and the internal plates are made of steel. It is common to cover them with veneers or other materials for aesthetic reasons.
  • Armored. They are wooden and / or MDF frames with steel plate interior. There are important differences in terms of resistance when compared to armored vehicles, the latter being the one that offers greater security.
  • Solid. Doors entirely in solid wood. We can find them in all types of designs and finishes. They are theoretically a less secure solution than the previous ones.