what sizes are finished timber
A piece of sawn timber will lose some of its dimension as part as the dressing process leaving the dressed piece with a finished size less than the nominal size. For example, when a piece of sawn timber with a nominal size of 100 x 100 mm is dressed all round (DAR) it will have a finished size of say 93 x 93 mm.The dressed piece of timber has historically been described as either 100 x 100 mm dressed or dressed to 93 x 93 mm finished size.or example, when a piece of sawn timber with a nominal size of 100 x 100 mm is dressed all round (DAR) it will have a finished size of say 93 x 93 mm.