Veneer Panel Finishing
Veneer panel gained widespread use during periods of severe shortage of high-quality construction and finishing materials in the USSR and later in Russia. Today, despite the abundance of modern materials, wooden veneer panel continues to hold a leading position among builders and homeowners. Part of its enduring popularity lies in its high versatility — it complements both hallway interiors and sauna spaces, as well as utility and service rooms.
Production and Types of Veneer Panel
Veneer panel is made by planing thin, straight-edged boards that were rejected from standard grades of sawn timber. These rejected boards are planed to a thickness of 1.5–2 cm, and any defective parts (such as rot, loose knots, etc.) are removed. The resulting board is then 'faced' (a special tool removes a longitudinal section to create a textured profile), and part of the edge is removed to form a tongue-and-groove joint.
The main wood species used in veneer panel production are pine, linden, alder, and larch. Pine veneer panel is the most affordable and thus the most common. Linden and larch panels offer higher strength and durability; alder panels are valued for their visual appeal. Linden panels are mainly used in saunas and baths, while larch is ideal for exterior applications. Other types are recommended only for indoor use in spaces with normal humidity levels.
Veneer panels are graded from A to C based on the number and size of knots per square meter. Grade A is the highest quality, with almost no knots visible. Grade C contains the maximum allowable number of knots.
Wall and Ceiling Cladding with Veneer Panel
Installation is straightforward: veneer panels can be attached to wooden battens ('lathe') or directly to walls made of planks or sheet materials. However, it’s more common to install guide rails made of wooden beams (typically 20 x 40 mm or 30 x 45 mm) level with the wall surface.
Before installing the panels, they must be treated with a wood preservative and coated with a protective lacquer. These simple steps significantly extend the lifespan and enhance the visual quality of the finished space. There are three main installation patterns:
- Horizontal;
- Vertical;
- Combined.
Horizontal installation is ideal for small rooms, as it creates a visual illusion of increased width. Vertical installation suits low-ceiling rooms, such as attic spaces, due to the visual effect of increased height. Combined layouts are more complex and require advanced skills, typically used in unique or custom designs.
The lathe must be installed horizontally for vertical paneling and vertically for horizontal alignment. The spacing between battens should not exceed 1 meter. Panels are then fastened with small nails (e.g., finish-type furniture nails) to the rails, ensuring each panel locks into the previous one via the tongue-and-groove joint. After every tenth panel, check alignment using a level or plumb line.
Important: when installing vertically, start from the left corner and ensure the first panel is perfectly aligned and securely fixed, as this determines the accuracy of all subsequent panels. For horizontal installation, panels must be laid with the tongue facing upward — this is the only correct method to prevent moisture accumulation in the grooves and extend the panel’s lifespan.
After completion, the entire structure can be coated with water-based lacquer in one or two passes to hide nail heads. During building use, periodically measure moisture levels using a moisture meter and reapply the protective lacquer coating as needed. If moisture levels rise in the panels, it means the room needs drying and improved ventilation. These combined measures help significantly extend the service life of the entire structure.
