Frequently asked questions
What strength classes are available for construction timber? | |
Structural timber is graded into different strength classes such as C14, C24, and C30. C24 is the most common and is used for the majority of construction projects. | |
When is C24 used compared to C14? | |
C24 is used for load-bearing structures such as beams and joists in floor systems. C14 is typically used for wall studs in load-bearing interior and exterior walls | |
How do I store timber correctly to prevent damage? | |
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How do I choose the right sizetimber? | |
The size you need depends on what you’re building. Common dimensions are 45 x 95 mm and 45 x 145 mm. For load-bearing structures such as roof trusses, C30 may be necessary. Contact customer service for assistance. | |
Where can I buy Södra’s products? | |
Södra’s products are available at many building supply stores and retailers. To find the right stockist, we recommend that you:
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Sustainably sourced
Glulam
Glulam beams are strong, laminated timber elements ideal for long spans, roof structures, and columns. They offer high load capacity, dimensional stability, and can be shaped straight or curved.
Rim boards are used in floor and roof framing to support joists and transfer loads. Made from LVL, OSB, or plywood, they prevent rotation and improve structural integrity.
Both are sustainably sourced and essential for durable, high-performance timber construction.

highly stable
Laminated Veneer Lumber
Laminated Veneer Lumber (LVL) is a strong, engineered wood product made by gluing thin layers of veneer with the grain in the same direction. It’s highly stable and ideal for beams, joists, studs, and trusses.
LVL offers excellent strength-to-weight ratio, resists warping, and is made from sustainably sourced wood—making it a reliable and eco-friendly choice for structural use.

solid softwood
KVH
KVH Structural Timber is a building material from Germany with precisely defined product characteristics which have been developed especially to meet the requirements of modern timber construction. KVH is a kiln-dried finger-jointed product made of solid softwood and is strength-graded.
Features andBbenefits
Build Better with KVH
Engineered for precision and built to perform – KVH Structural Timber combines German quality with modern construction demands. Its long lengths, dimensional stability, and certified sustainability make it a smart choice for efficient, high-quality building solutions.
Available in long lengths – reduces splicing, handling, and overall material costs
Finger jointed for stability – ensures straighter joists and consistent performance
Quality assured – manufactured to EN15497:2014 standards
Certified sustainability – full PEFC Chain of Custody
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