Sheet Materials
Jewson branches can offer a comprehensive range of Wood Based Panel Products.
Chipboard
Chipboard is a very versatile timber product and at Jewson you'll find a comprehensive range of chipboard for all kinds of building work. From standard grade board through to higher grade products for flooring - we are stockists of leading brands Caberfloor and Weyroc. Egger HDX Chipboard is available on request.
Plywood
Plywood is a wood-based panel product consisting of layers of veneers glued together, with the direction of the grain in adjacent layers usually at right angles. Strong and durable, plywood has a variety of uses from roofing and flooring to hoarding and walling. Jewson has an extensive range of plywood including hardwood and coniferous/softwood panels for structural and non-structural applications. Most branches carry substantial stocks of 5.5, 9, 12 and 18mm thicknesses, with 4mm, 6mm and 25mm available upon request.
| Types of plywood commonly available in the UK include: |
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HARDWOOD PLYWOOD FACE GRADES
A: Defect-free
B: May allow a very small amount of repair; very good finish; could be clear varnished
BB: Generally the most common grade - will allow filled and sanded defects of limited size, and joints
in the veneer. Paint/stain finish is good CC: Some quite pronounced defects including splits, knots, insect bore-holes, discolouration etc., but open defects are filled. Suitable for painting but not staining or clear-finishing
The most common grade of hardwood plywood stocked is BB/CC; BB providing one good face, and the reverse side being CC, often because the reverse will not be seen.
SOFTWOOD PLYWOOD GRADES
B or II: Fully repaired and sanded (will have sound live knots in it but no open defects)
C or III: May allow some open defects (i.e. pin knot holes, small splits), but these are limited. Boards may or may not be sanded or have extra repairs in the face (such as plugs, which are patches of veneer filling where there were originally larger holes); this will be advised either plainly or by using abbreviations like PTS (Plugged and Touch Sanded). Sturdifloor, which used to be quite commonly available in the UK, was an equivalent level grade
CC: Similar to C/III, but without any repairs (defects are still limited in size and number however)
D or IV: Will have large open defects unrepaired, like knot-holes, large splits etc.
Flame Retardant Panels
The fire performance requirements of Building Regulations Approved Document B - Internal Fire Spread (linings) is to inhibit the spread of fire within a building. With respect to this, the new European Harmonised test standards BS EN 11925-2 (Ignitability using a small flame), BS EN 13501-1 (Fire classification of construction products and building elements) and BS EN 13283 (Single burning item test) have replaced British Standard BS 476: Parts 5, 6 & 7.
Medium Density Fibreboard (MDF)
MDF is a wood based sheet material manufactured from wood fibres bonded together with a synthetic resin adhesive. Jewson offers a range of standard boards suitable for a wide variety of interior uses. For more demanding situations MDF is available in moisture resistant, flame retardant, high density and exterior grades. MDF is also available in Light and Ultra-light grades.
Oriented Strand Board (OSB)
OS B is specifically designed to be one of the most dependable, versatile, environmentally efficient wood panels available. OS B is structurally engineered for performance in a wide variety of industrial uses, including roofing, wall sheathing, flooring, site hoarding and packaging. The OS B products that we supply are Certified through our national network of Chain of Custody branches. We are stockists of leading brands such as Sterling and Smartply OSB. For more information please visit www.jewson.co.uk/sustainability
Sundela (Pinboard), Hardboard and Insulation Board
Hardboard is a low-cost, incredibly versatile product. Standard 3.2mm board is widely available at Jewson branches - other sizes are always available upon request.
For more information on any of these products order or download our Timber and Panel product guide.
