3. BLOCK BOARD A standard block board is a panel with a solid wood core , which may then be glued and overlaid with a cross grain rotary veneer or with chipboard or MDF. We generally use pine for the core, but can on request also deliver block boards with a poplar core. The specic product structure used for block boards means that the nished product may be labelled as 'solid wood'. It takes screws almost as well as solid wood, and other working parameters are as good. Technical characteristics of block boards (average target values for the panels) Density Modulus of elasticity long Modulus of elasticity cross Bending strength long Bending strength cross Formaldehyde emission Thickness tolerance Length and width tolerance Fire safety category Table for veneered blockboards 16 Final thickness mm current matrix on www.decospan.com Block board Block board MDF • Size tolerance: L ± 5 mm, W ± 5 mm, thickness ± 0,4 mm • Other dimensions available on request. • Panels can be cut to size.