10 MDF (Medium density fibreboard) Very popular board materialOften faced with veneer or plastic laminateMade with fine wood fibres in three layersNeed to drill into face before nails or screws are insertedFine dust is harmful
11 Hardboard Available in thin sheets One face smooth, one textured Often faced with plastic laminateBack of cabinets, base of drawersOnly used indoors
13 Name the following manufactured boards PineboardChipboard
14 Three layers of wood are being glued to make plywood Three layers of wood are being glued to make plywood. Draw a sketch to show the direction in each layer.
15 The edges of chipboard look poor The edges of chipboard look poor. Draw a sketch to show how the edges are covered.
16 State some advantages of manufactured boards Large sheet sizesCover large areas easilyUniform thicknessStable – no shrinkageDo not warpUse woods efficientlyLittle wasteOften veneered over – helps to save the rainforests
17 What do the letters WBP stand for? WaterBoilProof