Setting the threshold of interior doors

24-06-2018

Useful

The threshold is the bottom of the door frame. It seems to close the rectangle of the entire door structure. Is it necessary to set the threshold for interior doors? In general, the installation of empty door frame elements is optional, but desirable. And for some reason:

Tight closing door. Due to the complete abutment of the door leaf to the door frame.
Promotes sound insulation.
Interferes with penetration of unpleasant smells. For example, from the kitchen while cooking.
In the event that a minor spillage of water happens in the bathroom, the threshold will, to some extent, become an obstacle to the penetration of liquid into adjacent rooms.

Threshold material

It may be that between the rooms you have no thresholds, and you lived quite normally with this and not one year. However, at some point it was necessary to install door sills. Is it possible now, when the entire door frame is without a threshold, to add this missing element? Can.

To begin with, we will determine the material from which the threshold will be made.

Tree

It is better if it is pine or oak. The wood of these species is moisture resistant, but it is better to give preference to oak, so the threshold of such wood is more durable and wear-resistant. The wooden threshold is well combined with flooring. Needs special treatment: painting, varnishing.

Metal

The most practical and durable - it sills of aluminum. They are not so expensive, if you compare, for example, with brass and stainless steel thresholds. There are single-level, multilevel and angular metal thresholds.

Plastic

Not the best material, especially with regard to the threshold. Despite the fact that the color gamut is quite diverse, it should be understood that such thresholds are short-lived due to their fragility.

Stone or concrete

The strength is quite suitable for the threshold material. However, installation problems are inevitable if the door frame has already been installed before.

Bung

Quite flexible and elastic material. Most often, cork thresholds are used to hide the difference in floor levels.

Laminate

Must match the type of floor covering the room. However, this material is quite capricious as regards the temperature difference. At high humidity porozhek can lead.

In order for the threshold of this material to serve you for a long time, it must be moisture resistant. If, for example, the threshold acts as a laminated tile separator (kitchen / room; bathroom / corridor), then moisture tends to accumulate just below the threshold, which can reduce its service life if the material from which it is made is afraid humidity.

The desire of the owners to install the thresholds in the toilet and in the bathroom is fully justified. The reason for this desire is often to save the premises from unwanted water penetration into them in the event of unforeseen plumbing emergencies. It is clear that the threshold will not fully become a protective dam for high water in case of a large leak, but at some initial stage it will still be able to protect it. Therefore, the threshold as a protective structure for such types of rooms is fully justified. Also, a concrete threshold is appropriate when the floor differential is too large.

For the manufacture of concrete threshold is made formwork, in which he poured. After complete drying of the concrete, the threshold can be tiled.

Threshold installation

After such a small review of thresholds and materials let's talk about how to begin the installation of the threshold of the interior door. Of course, with a measurement. However, measuring the bottom of the doorway may not be enough. Typically, the joints of flooring in different rooms inevitably have cracks. It's not so scary. Worse, when they are different levels. However, even in this case, the matter is fixable with the help of multi-level thresholds. But back to the gap.

Произведя соответствующие замеры, можно смело идти в строительный магазин за порожком. Но какой выбрать? Если полы в разных комнатах расположены на разных уровнях, то вполне подойдет пробковый порожек. Это особенно актуально, если в одной из этих комнат установлен кондиционер и перепад температуры при переходе из одной комнаты в другую очевиден. Bung в данном случае способна изменять свой размер, но ее никогда не поведет, не перекосит. Поэтому этот момент нужно обязательно учесть при покупке порожка из пробки.

If you install a wooden threshold in the bathroom or toilet, then you need to do this so that between the lower part of the door and the threshold itself remains a gap of 5–8 mm. It is necessary that there was an influx of fresh air, as well as for the effective operation of the device of natural and forced ventilation (if there is one).

When setting the threshold of wood, you need to decide on its height. Then you need to make small grooves in the bottom of the vertical elements of the door frame. This can be done with a small hacksaw using a chisel. After measuring the width of the opening, you need to cut the wooden threshold in size. After that, with a hammer, preferably through a small piece of wood, lightly tap it so that the part fits into the grooves.

When the nut is inserted, you can proceed to fixing it to the floor. We drill a detail in 3 places and at the same time make a drill with neat marks on the concrete. Then we knock the threshold out of the grooves and in the places designated by the drill we drill holes in the concrete. We drive dowels. We set the threshold in place. It only remains to secure the threshold with countersunk head screws.

Setting the threshold of metal in the same way with the only difference that you can not do without a grinder or a hacksaw.

If the threshold is laminate, then for aesthetic reasons, it is important to use a decorative insert. The base with the corresponding groove is attached to the floor. And then the lining is put on or latched onto this groove, so the fasteners are not visible.

But what if floor coverings have a difference of 3–20 mm, what can be done? As noted above, you can use multi-level thresholds, which are set as well as ordinary thresholds. As a result, such a difference will be almost imperceptible.

In more detail I want to stay on the threshold of the guillotine. He has such a name because of the spring mechanism, which, when the door is closed, flips the bar to the floor level. It is equipped with a rubber lining. This device gives the impression that interior doors without a threshold, although in fact there is a threshold.

In the lower part of the door leaf, a wide slot is made to its full width, where a U-shaped profile is inserted with a folding mechanism, which is actuated by a button installed on the side of the hinges. When closing, there is pressure, and the spring flips the bar. When you open the door, the button snaps off, and the spring returns the bar to its place. That's all the wisdom of engineering.

The advantages of such a "smart" nut:

When cleaning it does not create any inconvenience.
Service life is quite long: 25 years.
Practical and istic.

The disadvantage of this mechanical sped device can be called the fact that its installation requires skills in carpentry and the presence of a specialized tool.

Since the profile of the guillotine cuts into the end of the door leaf to a depth of 20 mm, this mechanism is better to use in all-wood doors, but not cheap, which are usually assembled from narrow wood bars covered with fiberboard.

It is no secret that many people today when installing interior doors choose the option without a threshold. This can be explained, because the threshold, in their opinion, is a mass of inconvenience. One way or another, those who give preference to the design of interior doors that were fallen through, know that the functionality of the threshold is so obvious that it has a right to exist. There are many opinions on this score, and they are all different. Who is right in this case is difficult to determine. But with or without these doors, let it be beautiful, aesthetic and practical.

Video

This video shows how to assemble a door frame with a threshold:

This animation shows the principle of operation and setting the threshold of the guillotine: