OSB BOARD 12mm P.SER2,5x0,625
The photographs are for illustrative purposes only.
12 mm OSB/3 Tongue-and-Groove Sheathing Board, 2.5 × 0.625 m
Structural, wood-based panel for indoor and outdoor use — designed for timber-frame constructions, sheathing and decorative applications where dimensional stability and load-bearing capacity are required.
Key Benefits
- Exceptional dimensional stability and stiffness
- High load-bearing capacity with strong bending, compression and tensile performance
- Excellent fastener holding, including near board edges
- Low swelling value and surface partly resistant to wetting
- Suitable for diffusion-open and diffusion-closed construction systems
- Improved thermal insulation and sound damping compared with similar materials
Environmentally friendly wood-based panel for use inside and outside
Applications
Typical application areas include structural sheathing and decorative uses in building envelopes and interiors.
- Roof decking and sheathing
- Subflooring and floor underlayment
- Interior cladding, partitions and ceilings
- Ventilated exterior cladding systems
Wall sheathing in timber-frame constructions
What to Consider When Choosing
- Check formaldehyde class E1 (EN 120) for indoor air quality
- Allow for limited surface wetting resistance and protect from prolonged exposure
- Use appropriate fasteners — panel offers good holding even near edges
- Decide between diffusion-open or diffusion-closed system compatibility
Confirm EN 300 type OSB/3 suitability for structural application
Specifications
- Type / Standard: OSB/3 (EN 300); EN 13986:2004+A1:2015; EN 13501-1: class D-s1, d0
- Formaldehyde class: E1 (EN 120)
- Thickness: 12 mm
- Dimensions: 2.5 × 0.625 m (package measurements 250.00 × 62.50 × 1.20 cm)
- Total weight: 11.29 kg
- Surface: even wood surface, partly resistant to wetting
Profile: four-sided profiled, tongue-and-groove
Why Buy from SityPro
- Transparent price information and convenient ordering
- Delivery available to Estonia and Finland
- Product documentation and standards provided to support your application
- Responsive customer support to help select the right board
Easy to buy online with clear product features and standards listed
Description provided by sitypro.com
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Frequently asked questions about the OSB BOARD 12 mm P.SER 2.5x0.625
What is OSB BOARD 12mm P.SER2,5x0,625 and what is it used for?
OSB BOARD 12mm P.SER2,5x0,625 is a four-sided profiled OSB/3 panel, 12 mm thick, made of three layers with cross-oriented core. It is suitable for internal and external use in timber frame structures, floor sheathing and decorative finishes due to dimensional stability and good bending strength.
Which standards and formaldehyde class does this OSB board meet?
The board meets EN 300 (type OSB 3), EN 13501-1: class D-s1, d0 and EN 13986:2004+A1:2015. Formaldehyde emission class is E1 (EN 120).
Can I use this OSB board outdoors?
Yes, OSB BOARD 12mm P.SER2,5x0,625 is intended for both internal and external use due to its OSB/3 construction. For prolonged outdoor exposure, apply surface protection such as paint, stain or waterproofing.
Is this board suitable for flooring or as underlayment for laminate?
OSB/3 12 mm provides good stiffness and dimensional stability, so it can be used as underlayment for laminate on even, load-bearing substrates. For long-term performance, choose appropriate board thickness and joist spacing per building requirements—use a thicker board if needed.
What are the board dimensions and does it have tongue-and-groove profiling?
OSB BOARD 12mm P.SER2,5x0,625 is 12 mm thick and the 2,5x0,625 designation refers to panel format; it is four-sided profiled with tongue-and-groove (punn-soon) on the edges. For exact sheet dimensions check SKU 000-340826ASP.
How does OSB/3 differ from other OSB types and why choose OSB/3?
OSB/3 is designed for humid conditions and load-bearing applications; its three-layer cross-oriented structure gives greater strength and bending performance versus OSB/2. That makes OSB/3 preferable for timber frames, floors and exterior works.
Can I paint or fill the surface of this OSB board?
Yes, the board has an even wood surface suitable for painting, filling and decorative finishing. Pre-priming is recommended and use fillers compatible with wood-based surfaces for optimal adhesion.
Is this board suitable for timber frame walls and joisted floors?
OSB/3 12 mm has good mechanical strength and dimensional stability, so it can be used for timber frame wall sheathing and floor decking. For load-bearing elements check design requirements for thickness and fastening.
What tools and fixings are recommended for cutting and fastening this OSB board?
Use a fine-tooth saw (circular or table saw) for clean cuts in wood. Fasten with corrosion-resistant wood screws or nails of appropriate length and spacing per installation guidelines, considering the 12 mm thickness.
What is OSB BOARD 12mm P.SER2,5x0,625 and what layers does it have?
OSB BOARD 12mm P.SER2,5x0,625 is a 12 mm OSB/3 panel made of three cross-oriented layers (top and bottom layers longitudinal, core layer transverse). The board is profiled on all four sides with tongue-and-groove and provides dimensional stability and high mechanical efficiency.
Can this OSB board be used outdoors with occasional moisture exposure?
Yes, OSB/3 is suitable for interior use and occasional outdoor moisture exposure; it meets EN 300 OSB 3 requirements and tolerates periodic dampness, but prolonged direct water exposure is not recommended.
What are the fire performance ratings of this OSB board?
The board complies with EN 13501-1 with classification D-s1, d0, indicating limited smoke production and no flaming droplets/particles during testing. This is relevant when selecting materials for frame structures and interior finishes.
What formaldehyde class does this board have and is it safe for homes?
The OSB BOARD 12mm P.SER2,5x0,625 is classified E1 (EN 120) for formaldehyde emissions, indicating low emission levels and suitability for residential use when installed according to normal building practices.
Can this board be used as an underlayment for laminate or plywood?
Yes, the OSB/3 board's uniform wood surface and 12 mm thickness make it suitable as an underlayment for laminate or plywood, provided correct gaps and fixing methods are followed.
Is this board strong enough for timber-frame walls and joisted floors?
Yes, due to its cross-layer construction OSB/3 offers good bending strength and is suitable for timber-frame walls and joisted floors. The 12 mm thickness is appropriate for many load-bearing applications but consider thicker panels for higher loads.
What are the board dimensions and does it have tongue-and-groove edges?
OSB BOARD 12mm P.SER2,5x0,625 is profiled on all four sides with a tongue-and-groove system for easier joining. The model name indicates dimensions of 2.5×0.625 m (2500×625 mm) and a thickness of 12 mm.
Can I sand, fill and paint this OSB board for decorative finishes?
Yes, the OSB/3 board's uniform wood surface can be sanded, filled and painted for decorative finishes. Clean off dust and apply a suitable primer compatible with wood before final coatings.
How does OSB/3 differ from other OSB types and why choose it for construction?
OSB/3 is designed for load-bearing applications and varying humidity conditions, offering better bending strength and moisture resistance than OSB/2. That makes OSB/3 a recommended choice for framing and flooring uses.
What decorative and finishing uses are suitable for this board indoors?
The OSB/3 board's light weight and uniform wood surface make it suitable for decorative wall panels, furniture components, partitions and cladding; it can be varnished, painted or left with a treated natural texture.
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