Frequently asked questions about the External boarding category
What is External boarding and what is it used for?
External boarding is profiled cladding boards for facades, made from sawn or planed timber and often primed (e.g. UYV/UYS ranges). It is used for wall cladding, porches and eaves to protect the building and provide a decorative finish when properly treated and painted.
What typical sizes of External boarding are available?
Available standard sizes include 21x120x3000/3900/4200/5100/5400/6000 mm and 18x120x4200 mm, with some profiles at 21x95 mm. Choose board length and width according to wall height and jointing requirements.
What is the difference between planed and sawn external boarding?
Planed boarding (e.g. UYV 18x120x4200) has a smooth finish and precise dimensions; sawn boards have a more textured surface and are often cheaper. Planed boards are easier to paint, while sawn boards retain a more natural wood texture.
Is primed external boarding available in the range?
Yes — primed options appear in product names (KRUNT/UYS/UYV), making them ready for final painting. Priming protects the timber and improves adhesion of topcoats.
Which profiles suit horizontal and vertical installation?
Most 21x120 profiles are suitable for both horizontal and vertical installation when using the correct joint profile. For vertical cladding, 21x95 boards are often chosen for improved water runoff and a neater appearance.
How to prepare primed boarding for final painting?
Lightly sand the primed surface with fine grit, remove dust and apply two coats of exterior paint following the manufacturer's instructions. Observe temperature and humidity recommendations to ensure durable finish.
Which timber profiles appear among top products and how are they marked?
Top products use markings like UYV, UYS and UYL with sizes such as UYV 21x120x5100 or UYV 18x120x4200. The code indicates processing (sawn/planed), board width and length.
Is 21x120 external boarding suitable for eaves and porches?
Yes, the 21x120 mm profile is commonly used for eaves and porches due to its strength and appearance; lengths up to 6000 mm reduce joints. Treat boards with preservative and finish paint to protect against moisture.
Can 18x120 boarding be used for a house facade?
Yes, planed 18x120 mm boards (e.g. UYV 18x120x4200) are suitable for facades and provide a smooth, even surface. Consider quantities and weather conditions during installation and finishing.
How to choose between white and brown pre-finished boarding in the range?
Choose by desired appearance: white pre-finished boards (e.g. UYV 21x120x3000 white) give a classic bright facade, brown emphasises wood texture. Check factory finish durability and plan extra protective coating if needed.
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Price of products in the External boarding Category
External boarding: 9.80€ — 12.28€ (2)