How to build a partition wall?

When planning to undertake renovation work, one thinks about making many small changes at home.

Changing an interior door without changing the frame, replacing floor or wall coverings, and especially installing a partition wall, these projects are among the most essential. But the latter offers several advantages.

It not only allows isolating a living area from noise but also separating a room. Between brick partitions, glass block partitions, wooden partitions, plasterboard partitions, plaster block partitions, or honeycomb panel partitions, many solutions are available to you.

No matter your choice, the installation must be carried out according to best practices. This article can serve as a guide to help you proceed with the partition installation. But to start, it is appropriate to mention its main uses.

Good reasons to install a partition wall

Whether it is a honeycomb panel partition, glass block partition, plaster block partition, or simply a plasterboard partition, this interior layout allows delimiting two parts of a dwelling or a room.

Although it does not require any foundation like a load-bearing wall, it can create an atmosphere of privacy or confidentiality among the inhabitants. You can carry it out during construction or during the renovation of the house.

Installing a wooden partition or installing a plasterboard partition also aims to provide better movement comfort in the business premises or in the dwelling. 

But that’s not all, the wall greatly improves thermal and sound insulation inside the dwelling. Likewise, it can have a purely aesthetic use.

By showing creativity, plasterboard partitions can optimize interior design. They bring a modern touch to the room.

How to prepare the floor before installing a partition wall?

Whether you plan to install plasterboard partitions or wooden partitions, preparing the floor is an important step not to be overlooked. Especially since the wall is made with robust material, you must ensure that the support is strong enough to hold it.

Once this condition is met, check that the floor, ceiling, and walls are perfectly level. If not, it is necessary to do a leveling screed before installing plasterboard partitions. This layer of mortar serves to correct surface irregularities.

After that, make sure the floor is clean, sound, and dry. Do not hesitate to vacuum it to remove dust. If it is covered with grime or stained, wash it with an appropriate cleaning product and then rinse with clear water.

In the same context, remove all traces of paint, oil, glue, and if applicable, mold. If the floor has moisture problems, you must address them before installing plasterboard partitions or plaster block partitions. Otherwise, its durability and strength are questionable.

If you choose to install plasterboard partitions, opt for quality models. If the wall is made in the bathroom, favor water-resistant plasterboard. Remember that there are several types of plasterboard, namely soundproof plasterboard, fire-resistant plasterboard, and Placostil.

What materials are needed to install a plasterboard partition?

As mentioned above, there are several categories of partitions. If you are looking for solidity, installing wooden partitions is a good idea. This natural material is also distinguished by its thermal and sound insulation quality.

Material	Weight (kg/m²)	Installation speed	Sound insulation
Plasterboard (BA13)	~10 kg	Very fast	Good (with wool)
Plaster blocks	~70 kg	Average	Excellent
Aerated concrete	~25 kg	Fast	Average

As for the plaster block partition, it is prized for its ability to regulate the room’s humidity. Many professionals also appreciate it because it appears resistant to mold.

For fragile floors, nothing beats favoring a honeycomb panel partition. Due to its lightness, it is easy to install.

If you bet on transparency, favor a glass block partition. Very aesthetic, it is magnificent to see. Moreover, it has high water resistance.

Even though these partitions have many advantages, it is the plasterboard partition that outperforms the competition. Apart from its acoustic performance, its installation requires no drying time. The material can also be easy to work with.

To successfully carry out its installation, you need a number of tools such as a drill or screwdriver, a laser or spirit level, a crimping plier, a hole saw, a cutter, a hammer drill or hammer, and more.

For the materials, assemble a UW profile, a UA profile, a CW profile, a sealing strip, a joint spatula, a rotating anchor, insulating panels, a crack cover, and of course plasterboard sheets.

What is the first step to install a partition wall?

Except for preparing the floor, you must start by making a sketch. Mark the exact location of the partition using a marker and plumb line. This helps to minimize errors during the plasterboard partition installation.

Once this step is completed, continue by installing the metal frame rails. Make sure to strictly follow the marked references. Then cut the plasterboard sheets. Now sand the cut using an appropriate tool such as a plasterboard rasp.

The final phase consists of mounting the plasterboard partitions and insulation on the structure. Use a screwdriver to fix the first plasterboard face as well as the second plasterboard face. Applying the joints is the last step. It is recommended to choose ready-to-use plasterboard joint compound.

How to ensure the partition is perfectly straight when starting to install it?

For better results, it is highly recommended to use only high-quality plasterboard. If the materials have imperfections, it is very likely that your plaster block partition will not last over time.

If you want it to remain perfectly straight, make sure to follow all the installation steps from start to finish.

Even if you have already chosen the location of the wall, be sure to mark it using a chalk line. Then follow the line when installing the rails to avoid mistakes.

You must consider the width of the plasterboard sheets and that of the rails when defining the width of the partition location. That said, cut the rails to the ideal length and firmly fix them to the floor, ceiling, and walls. They must be perfectly aligned.

As for the plasterboard sheets, make sure they are not too far apart. A distance of 1 mm is already sufficient, otherwise you will have to fill the gap with an appropriate product such as adhesive mortar.

During finishing, firmly press the joint tape to expel the air. Choose a top-quality model, as it contributes to the strength and durability of the plaster block partition.

What precautions should be taken when installing a partition in a humid room?

When we talk about a damp room, we immediately think of the toilet and the kitchen. However, these places still have an average humidity level. On the other hand, the bathroom is classified among rooms with high humidity.

It is often close to the bedroom. If you do not know how to install a plasterboard partition that protects you from the emissions related to this room, a few tips should be considered.

Firstly, it is recommended to use only hydrophobic plasterboard panels. They are specially designed to tolerate moisture and water splashes. And even if you install them in a wet room, this condition does not scare them.

Secondly, it is imperative to raise the plasterboard 1 cm off the floor during the plasterboard partition installation. The goal is to avoid moisture rising. Remember to use moisture-resistant joints ensuring the durability of the wall.

Except for the plasterboard partition, the glass block partition is also widely used to partition damp areas. With its multiple appearances, it brings an unmatched aesthetic touch to your bathroom.

How to integrate electrical outlets or switches when installing a partition?

There is no need to be an electrician or a skilled handyman to add switches or outlets in plasterboard partitions. In fact, the installation is similar to that in a regular wall. The work requires the use of a flush-mount box.

This element helps simplify the installation of outlets on a plasterboard partition. You can also use it for mounting a wall lamp, a light fixture, or a home automation device.

Before taking action, you must first cut the power to avoid accidents. Then, drill the hole that will accommodate the flush-mount box.

Next, pass the electrical wires through the hole and connect them to the electrical outlet. Now proceed to install the box by pushing it into the plasterboard partition.

The last step is to tighten the fixing tabs using the appropriate screws and connect the wires to the connectors.

Is it necessary to have a permit or authorization to install a partition in your home?

If you plan to modify the roof slope or create Velux windows, it is mandatory to comply with the administrative procedures governing the work.

If your project involves transforming the living area that is less than 20 m2, you must declare the work. The same applies to attic renovation that may change the exterior appearance of the dwelling.

For the foundation or the expansion of the floor area of an existing house, you need a building permit. It is the same for the permanent change of a roof covering.

However, you are not required to declare the work nor request a building permit for the creation of a plasterboard partition or honeycomb panel partition. This measure also applies to the construction of a staircase.

In any case, it is safer to go to the town hall to refer to the Local Urban Plan or PLU. Some exceptions may occur in each locality.

What are the advantages and disadvantages of installing a brick partition compared to a plasterboard one?

If you are wondering how to build a brick partition, know that this operation is within everyone’s reach. Just like the honeycomb panel partition or glass block partition, the brick one offers countless remarkable advantages.

Indeed, plasterboard partitions are popular. But know that brick is also one of the oldest wall construction materials.

Its primary asset lies in its unbeatable robustness. It also offers better longevity. Moreover, it does not require complicated maintenance. So if you are thinking about building a brick partition, it can accompany your home for a very long time.

It should be noted that brick provides better thermal insulation, thanks to its alveoli that trap air. It can retain heat in the cold season and coolness during warm days. Compared to the plasterboard partition, it is very fire resistant.

Despite its many strengths, the brick partition has limitations. Due to its weight, its installation takes a lot of time.

Since it appears more solid, it is not at all flexible like the plasterboard panel partition. As a result, it can crack easily. The plaster tile partition also stands out for its better sound insulation. This is not the case for the brick wall.