WHY AND FOR WHAT PURPOSE SHOULD YOU CHOOSE LARCH PRISM?

Larch beams are edged lumber with a cross-section up to 100mm (e.g. 100x100mm, 80x80mm, 80x100mm). They are usually off-center, meaning the center of the trunk does not pass through the length axis. The difference between a beam and a beam is in its size and the position of the cut depending on the center of the processed tree trunk.

Larch prisms are widely used in all wooden structures in the interior and exterior for wooden roof trusses, ceiling larch prisms and exposed purlins, pergolas, gazebos, fences, floors, terraces, facades and many others. At the customer’s request, we can supply larch beams with planed, sanded, milled edges to a radius. Larch beams, but also smaller larch prisms, are widely used in the production of structural elements of various building structures.

Larch has a very nice and decorative appearance, but above all it is very durable when used outdoors. Larch lumber has the greatest resistance to weathering of our coniferous trees. Larch lumber has a long service life even without surface treatment, due to the high content of resin and oily substances, which impregnate larch so well that it repels water. We cut larch prisms to order, even in whole meters up to a length of 12 meters.

LARCH WOOD FOR THE GARDEN

Larch beams are a cheaper alternative to oak and are just as incredibly durable and will obviously last for many years to come and will become even more beautiful with age. We can make larch beams with four sharp edges or just the required visible edge or side. The other edges can be rounded with bark.

Choosing larch wood beams is a clean way to decorate your garden.

Whatever you need, a border, a vegetable or flower raised bed, steps, seating or even a pond, then our larch beams are perfect for your project.

LARCH PRISM FOR CONSTRUCTING RAISED FLOWER BEDS?

A raised planting bed is ideal for the eco-conscious gardener, perfect for vegetable beds if you are considering self-sufficiency, offers more space for growing flowers and fruits, or even creates a beautiful ornamental feature.

They are a perfect way to introduce a different type of soil into your garden and can help improve plant drainage. Their relatively small footprint also makes them easy to work with and maintain.

We offer a range of shapes and sizes to suit your needs and available space, with pre-cut wooden components making construction quick and easy.

WHAT LARCH PRISM CAN WE PRODUCE FOR YOU?

Rustic look with a higher proportion of knots and curls

Larch beams in a rustic style, with their appearance, highlight the natural beauty of larch wood without perfect industrial sharp-edged processing. Beams processed in this way will take you back several centuries to a time when perfection was not emphasized. The more or less running edges of the stripped bark, small and large healthy knots remind you every time you look at this beautiful piece of wood that in the beginning there was a tree that had grown for decades with a natural curvature rising towards the light with a bushy branching in the crown of the tree. To produce larch beams with a rustic look, trunks with a larger number of cut branches (knots) and not completely straight are used.

Rustic larch prisms are suitable for use in larger square and rectangular dimensions of 150mm and more, e.g. in the form of a massive bench, table, or design element in the interior and exterior.

Sharp-edged appearance with fewer knots

When producing exposed larch beams and prisms, we emphasize the quality of processing so that all edges are sharp without curves and a large number of larger knots. With their clean appearance and quality, exposed larch prisms show the beauty of larch wood and are suitable for structural and design elements of various small and large building elements.

To produce exposed larch beams, logs are used, in order, the first and second pieces from the bottom of the tree with a smaller number of cut branches (knots) and minimal curvature.

Exposed larch prisms are suitable for use in smaller square and rectangular dimensions of 80mm and more, e.g. solid chairs, tables, design elements in the interior and exterior – gazebos, pergolas, exposed trusses and other solid structures.

Freshly cut (cut) larch beams with unspecified moisture content

The disadvantage of using unprocessed lumber can be a high water content and subsequent volume changes and deformations when drying to equilibrium moisture. Higher water content can also be problematic in terms of increased risk of attack by wood-destroying insects, molds and fungi, but this is to a small extent in the case of larch, since larch, like oak, is resistant to these attacks.

When purchasing raw lumber, it is a good idea to choose the right quality for the type of use. Generally speaking, center-grained lumber, ideally radial, without any pith content, will be the strongest and most stable.

On the other hand, installing elements made of undried wood containing pulp can cause undesirable effects in the form of twisting, drying cracks, etc.

This product of basic sawmilling does not lose its popularity in traditional carpentry constructions, where a relatively wide range of cross-sectional dimensions is used – they are used in gazebos, pergolas, roof trusses, exterior structures, and larch beams in the garden.

Technically dried, planed larch beams

The profiles are made from technically dried larch lumber with guaranteed moisture content (usually 15% ±3%). For larger dimensions over 120mm, it is produced as center lumber or for smaller dimensions, the primary cut of the log is made with care taken to cut through the pith (center of the trunk). This guarantees higher dimensional stability.

Four-sided planing or grinding and chamfered edges are a matter of course – for ceiling beams and other visual elements, we supply larch beams with planed, ground, decoratively milled edges, grooves or hand-planed edges.

We will be happy to advise you on choosing the right material…

SHOULD YOU TREAT LARCH PRISM OR LET IT TURN GREY?

Larch does not need a surface treatment in outdoor conditions, as it can last for about 15 to 25 years without decaying if not in direct contact with the ground. Untreated larch will turn grey in about 2-3 years due to sunlight and moisture. The color will first change from the points most exposed to the weather and will even out over a few years, depending on the conditions. The greying of the wood can be slowed down by treating the wood with transparent wood preservatives. A beam made of larch also does not need to be surface treated, as the larch material can withstand UV radiation and moisture. However, the wood will turn grey over the years. Please note that during the greying process the surface tone may be uneven.

HOW ARE LARCH PRISM USED?

Larch beams, especially from Siberian larch, are widely used in construction and landscape architecture due to their durability and aesthetic appearance. Here are the main uses:

Use of larch prisms

Facade cladding : Larch prisms are often used for facade cladding, where they provide a natural look and good protection against weather conditions.

Terrace construction : These beams are ideal for terrace construction, where they provide a stable and durable base. Larch wood is rich in resins, which increases its resistance to moisture and rot

Porches and gazebos : Larch beams are also used in the construction of outdoor structures such as porches and gazebos, due to their strength and durability.

Substructures : They are commonly used as substructures under terraces or wooden floors, which ensures the long life of these structures.

Garden structures : Larch prisms can also be part of various garden projects, including pergolas and other decorative elements  

Thanks to their properties and wide range of uses, larch beams have become a popular material for professionals and hobbyists alike.

LIFESPAN OF LARCH PRISM?

The lifespan of larch beams is greatly influenced by their natural properties and the conditions they are used in. Larch wood is known for its  high durability  and  long life , making it a popular material for various construction and garden projects.

Properties of larch wood

Natural durability : Larch wood contains extractives that increase its resistance to rot and fungal attack. These substances, especially phenolic compounds, contribute to its long lifespan.

Density and strength : Larch has a density of between 520 – 620 kg/m³ at 16% moisture content, which gives it strength and elasticity. This combination of properties ensures that larch beams can last for decades without significant wear and tear.

Weather resistance : Thanks to its natural impregnation, larch wood is water resistant, making it an ideal choice for outdoor structures such as terraces, pergolas and fences  

Expected lifespan

Long life : Larch beams can last for decades without significant wear and tear. In many cases, it is reported that properly treated larch wood can last over 30 years.

Environmental impact : The lifespan of larch beams can be affected by factors such as humidity, UV exposure and maintenance. Wood exposed to extreme conditions may have a shorter lifespan.

Larch beams are a high-quality and durable choice for a variety of building applications. Their natural properties and weather resistance ensure a long service life, making them an economically advantageous material for any interior or exterior project.

IS IT NECESSARY TO TREAT LARCH PRISM?

Surface treatment : For outdoor use, it is recommended to treat larch beams with a protective oil or glaze. This treatment helps protect the wood from weathering, rot and wood-destroying insects.

Appearance maintenance : Regular surface treatment, such as oil or paint, is recommended to maintain the appearance and durability of the wood. Healthy and well-treated wood retains its structure and aesthetics for a longer period of time.

Preventing rot : When installing, it is important to use spacers between the joists and the substrate to ensure ventilation and minimize the risk of rot. Placing them on granulate pads or terrace rectification targets also helps protect the wood from the underside.

Treating larch beams is not just a recommendation, but a key step to ensure their long life and functionality. Regular maintenance and proper installation techniques can significantly contribute to the protection of this quality building material.

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