The use of natural wood in the interior is a classic, which, alas, often costs homeowners too expensive. Plywood for wall decoration is an ideal alternative to the array, combining accessibility, strength and aesthetics of natural pattern. This material has experienced a real renaissance in interior design, no longer being associated exclusively with rough work or scaffolding.
Today. plywood It allows you to create unique accent surfaces, zoning space and even improve the acoustics in the room. Unlike a single board, the multi-layered structure of the material provides high geometry stability, which is critical for facing large planes. However, in order to make the result happy for years, it is necessary to strictly observe the technology of preparation and installation.
In this article, we will analyze all the nuances of working with plywood: from choosing the right variety to finishing painting. You will learn how to avoid common beginner mistakes and turn regular sheets into a premium design element. Readiness begins with understanding the properties of the material.
Criteria for the selection of plywood for internal work
The first thing to decide on is class. environmental. For residential premises, brands that emit formaldehyde in dangerous concentrations are categorically not suitable. The best choice will be plywood emission class E0 or E1It is certified for use in bedrooms and children’s rooms. Ignoring this parameter can lead to serious health problems for residents.
The second critical aspect is moisture resistance. Although the interior of the apartment is dry, the humidity changes in the kitchen or bathroom can be significant. Phanera FC (on urea glue) is suitable for dry rooms, whereas FCM polished FC with additional treatment better cope with the microclimate of wet zones. Birch veneer is usually stronger than coniferous, but has a higher cost.
⚠️ Warning: Never use a brand for interior decoration FSF. This material contains phenolformaldehyde resins, which are toxic when constantly evaporating in a confined space, despite their high moisture resistance.
The appearance of the facial layer also plays a crucial role. The class is indicated by the letters: Eh. (elite) I, II, III, IV. For finishing without subsequent rough painting, choose varieties Eh. or IOnly minimal defects in the structure of the wood are allowed. Lower varieties require spatula or use in hidden places.
The thickness of the sheet is selected based on the pitch of the crate. For a standard step of 50-60 cm, the thickness of 12-15 mm is considered optimal. Thin sheets (4-6 mm) can be used for curvilinear structures, but require frequent support or sticking on the base.
Essential tools and supplies
The quality of the result depends on the preparation. You will need not only plywood itself, but also specialized fasteners. Regular nails can split the end, so it is better to use screw-trap with a zingu head or special finishing nails. To create a frame (crate) you will need wooden bars or a metal profile.
Don’t forget about the tools for cutting and cutting. Electrojigsaw clean-cutting-fisher circular-saw They will provide a smooth edge without chipping. Also in the arsenal should be a level, roulette, screwdriver and grinder for finishing the joints.
☑️ Basic installation kit
For finishing, prepare a deep penetration primer designed for wood and paint materials. If you plan to tint, you will need a water or alcohol-based morilka. All chemical compositions must be compatible with each other so that there is no detachment of the coating.
Preparation of the base and creation of the framework
Installation of plywood on bare walls is possible only in the case of a perfectly flat surface, which is rare. Therefore, the creation crib It is a mandatory stage. This allows you to level the plane, lay communications and provide a ventilation gap that prevents rotting.
The bars are attached to the wall in increments of 40-60 cm, strictly vertically or horizontally, depending on the direction of laying the sheets. Before installation, the tree must be processed. antiseptic and flame retardant to improve fire safety. This requirement is especially relevant for private homes and public spaces.
If the walls have significant differences, use linings (wedges) under the bars to align the plane. Control the process with the building level after installing each frame element. An error at this stage will result in visible curvatures on the finished wall.
⚠️ Before starting work, be sure to check the wall for hidden wiring or pipes. Drilling or screwing screws into communication will lead to an accident and additional repair costs.
Do I need to have a vaporproofing under plywood?
In most cases, vapor insulation is not required inside the heated room, since plywood is a vapor permeable material. However, if you insulate the outer wall with mineral wool, a layer of vapor insulation is mandatory on the side of the room so that moisture does not condense inside the insulation.
Technology of cutting and installation of sheets
The stains should be made with the lights in mind. Wood is a living material that reacts to changes in humidity by expanding or narrowing. Between the sheets should be left strain-gap 2-3 mm, and around the perimeter of the room - 5-10 mm from the floor and ceiling.
The fastening of the sheets to the crate is carried out by screws. The fastener hats should be recessed into the material by 1-2 mm so that they can subsequently be masked with a putty. Twisting screws in increments of 15-20 cm along the perimeter and 25-30 cm in the center of the sheet.
For docking sheets without visible seams, you can use the method "quarter" or special decorative rails. If the plywood has a beautiful edge, the ends can be left open, having previously polished them. This creates the effect of modular design.
When cutting plywood with an electroclover, turn on the function of the pendulum stroke at a minimum, and choose a file with the reverse direction of the tooth (the teeth look down). This will avoid the slack on the front of the sheet.
The sequence of installation usually comes from the corner of the room. The first sheet is set strictly in level, as it sets the geometry of all further facing. Use wedges to temporarily fix before the final fastening.
Comparison of characteristics of different types of plywood
To finally decide on the choice, it is useful to compare the basic parameters of the different types of plywood available on the market. The table below will help to organize the data.
| Parameter | Birch FC | Coniferous FC | Laminated | Grinded (Sh1) |
|---|---|---|---|---|
| Strength | Tall. | Medium | Tall. | Medium |
| Wet resistance | Moderate. | Low/Moderate | Tall. | Depends on the base. |
| Appearance | Light, uniform. | Expressed drawing, bitches. | Film of any color | Smooth, under the paint. |
| Price. | Tall. | Medium | Tall. | Medium |
As you can see from the table, birch-plywood It is more attractive and aesthetic, but it is more expensive. Coniferous breeds are more available, but can release resin when heated. Laminated options are good for specific tasks where wear resistance is needed, but they are more difficult to glue or paint without special preparation.
The choice between polished and unpolished plywood depends on the finish. If you plan to have a transparent varnish, the surface should be perfectly smooth (variety). SH1 or SH2). For opaque-painting (covered enamel) is suitable and less processed material, which will save the budget.
The main rule of choice: for living rooms, take only birch plywood of the FC class E1 brand. This is a guarantee of the safety and durability of the coating.
Finishing and decoration
After installation, the stage of transformation of the building material into a design element begins. The first step is always the grinding. Even expensive factory grinding may require refinement at the joints. Use sandpaper with a grain of 120-180, moving along the fibers to avoid leaving cross-sectional scratches.
Then comes the priming. The soil fills the pores of the wood, equalizes the absorption and prevents the appearance of pile. For plywood, it is especially important to prime endsAs they absorb moisture and paint like a sponge, which can cause the edges to swell.
The finishing options are varied:
- 🎨 Lacquer: It emphasizes the natural texture of the tree. Use matte or semi-matted water-based varnishes, they do not turn yellow over time.
- 🖌️ Painting: It allows you to get any color. Enamel will hide knots and defects, creating a monolithic surface.
- 🔥 Heat treatment: Braching or firing changes color and relief, making plywood look like an expensive aged tree.
Apply paint materials in thin layers, allowing each to dry completely. Between the layers, it is recommended to do light grinding ("interlayer grinding") to remove the raised pile. This will provide a professional, smooth coverage.
⚠️ Note: Do not apply the finishing coating if the humidity in the room is above 60% or the temperature is below +10 ° C. This will lead to clouding of the varnish, long drying and possible detachment of the film.
Frequently Asked Questions (FAQ)
Can you glue plywood directly on drywall or concrete without a frame?
Technically, it is possible to use adhesives (“liquid nails”), but this method has serious drawbacks. You will not be able to level the wall, and the lack of a ventilator can lead to mold. In addition, it will be impossible to dismantle such a structure without destruction. The frame method is preferable.
How to hide self-tapping hats if the plywood is covered with transparent varnish?
There are several ways. The easiest way is to use a wax pencil in the tone of a tree. A more professional option is to mix fine wood dust (remaining from grinding) with a transparent varnish or PVA glue and seal the hole with this composition. After drying and grinding, they will be almost invisible.
Do I need to acclimatize the plywood before installation?
I will. The sheets must lie in the room where the installation will be carried out in a horizontal position for at least 48 hours. This will allow the material to take in the room’s humidity and temperature, which minimizes deformation after installation.
Is plywood suitable for the walls in the bathroom?
Conventional plywood FC is not suitable for areas with direct water intake. For the bathroom, only moisture-resistant plywood (often labeled as "wet-resistant" or has green markings on the ends) can be used in combination with high-quality waterproofing and protective lacquer coating in several layers. Even so, the risk remains high.