Timbers - EduqasStock forms

Hardwood and softwood are types of timber that come from many different trees. Manufactured boards such as MDF and plywood are man-made.

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Stock forms

All designers need to know the that timber and man-made boards are available in. If stock sizes are known, then designs can be manufactured more economically to reduce waste.

Once timber has been cut at a sawmill, it is referred to as and uses include garden fence posts and some building work. This type of finish is rough and has not been treated or machined further. Timber that is sold at DIY shops or from a timber merchant can often be bought with edges that have been machined smooth.

Image gallerySkip image gallerySlide1 of 2, Strips of rough-edged sawn timber piled on top of each other., Sawn timber

If planed timber is bought, the price will be higher because of the care taken to process the length of wood. PSE is a term used to indicate that the timber has a . This means that one edge will be planed smooth. PAR is a term used to indicate that the timber is , meaning that both the edges and sides have been planed. Planed timber is used for interior work where the timber is likely to be seen.

Hardwood and softwood are normally sold in lengths called , or . Planks and boards refer to the proportional dimensions of the timber, whereas moulding refers to a decorative pattern that has been cut using a . Moulded timber can be used for skirting boards and dado rails.

A close-up image of a white luxury skirting board against a dark wooden floor.
Image caption,
Moulded timber

Manufactured boards are commonly available in form and in standard sizes with various thicknesses depending on the chosen material.