Working with wood

The main types of joinery and carpentry work are: tesanie, cutting, sawing, drilling, slotting, planing, sanding and sanding wood. These operations are performed on different types of wood, untreated and treated.
Raw timber are:
- Thin (poles), a thickness of 30-70 mm;
- Small (columns) of thickness 70-130 mm;
- Average (thin logs) 140-240 mm thick;
- Large (thick logs or ridges) with a thickness of more than 250 mm. Sawn timber or lumber (Figure 51) is divided into:
- Plates, obtained in the longitudinal cutting the logs into two equal parts;
- Quarters, obtained by a longitudinal sawing logs into 4 equal parts;
- Two-, three-and chetyrehkantnye bars, thickness and width which exceeds 100 mm;
- Boards with thickness of 100 mm or less in width, and 2 times more than its thickness;
- Bars 100 mm and less than the width of which does not exceed the double thickness;
- Sleepers;
- Slabs, which are the sides of the timber, which remain when cutting;
- Veneer boules - ostrogannye timber with shaped cross-section (or folded groove boards, etc.);
- Fence length to 2,500 mm, a width of 40-110 mm and a thickness of 15-32 mm.

Fig. 51. Timber: a - plate b - QUARTER B - dvuhkantny bar d - trehkantny timber, e - chetyrekantny timber, e - block, g - unedged boards h - edged board and - tongued and grooved boards to - fanfold board; l - slab.
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