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		Maintenance and Storage of Wood - Course: Manual woodworking techniques. Instruction examples for practical vocational training (Institut für Berufliche Entwicklung, 15 p.)
			(introduction...)
			Preliminary Remarks
			Instruction Example 8.1.: Sawn Timber Storage Yard
			Instruction Example 8.2.: Box-type Pile
			Instruction Example 8.3.: Double-block Pile

Instruction Example 8.2.: Box-type Pile

This example serves to practise the construction of a box-type pile. Box-type piles are applied for sawn timber sorted boardwise or blockwise.

Material

Figure

Non-edged or edged boards

Dimensions:

Width:

as available

Length:

at least 2000 mm

Equal thickness:

at least 25 mm

Tools

Metal hammer 250 to 500 g

Measuring and testing means

Measuring tape or folding rule, long straightedge, stretching line, water level

Auxiliary accessories

Pile strips (width: 25 mm to 50 mm)

Dimensions:

Width:

25 mm to 50 mm

Length:

at least 1000 mm

Thickness:

at least 25 mm

Ladder (scaffold), covering plates, identification plate, nails

Necessary previous knowledge

Types of wood, properties of wood, measuring, testing, preparation of a sawn timber storage yard

Sequence of operations

Comments

1. Check the prepared timber yard and pile base for meeting of requirements.

Check the position of the pile stones for joint horizontal and aligned height and for straight-ness in length and width by means of long straightedge or stretching line with water level. If necessary, adjust the position of the pile stones until the required position is achieved.

2. Put pile strips longitudinally on the squared timbers of the pile base.

The grains of the squared timbers and of the pile strips to have the same direction. Put one pile strip on each squared timber. Make sure that the pile strips have the same thickness.

3. Put several boards side by side and transversely on the pile strips until the intended pile width is reached.

The faces of the boards nearer to the heart to show upwards. Always let the edges of one cross-grained face (cross-sectional area) of all boards end with the edges of an outer pile strip.

4. Put the second layer of pile strips on the first layer of boards according to step 2. above.

Put the pile strips exactly vertically above the pile strips beneath (check with water level).

5. Put on the second layer of boards according to step 3. above.

Take into account the comments on step 3. above. Put the frontal longitudinal narrow face of the first board and one cross-grained face each vertically above the narrow faces of the bards-beneath (check with water level).

6. Repeat the steps 4. and 5. above until the intended pile height is reached.

Use safe ladder or scaffold when working in bigger height. Secure covering plates by fixing against weather influences.

7. Cover the top of the box-type pile with covering plates.

8. Identify the pile by fixing an identification plate.

Box-Type Pile

Non-edged or edged boards
Dimensions:
Width:	as available
Length:	at least 2000 mm
Equal thickness:	at least 25 mm

Dimensions:
Width:	25 mm to 50 mm
Length:	at least 1000 mm
Thickness:	at least 25 mm
Ladder (scaffold), covering plates, identification plate, nails

Sequence of operations	Comments
1. Check the prepared timber yard and pile base for meeting of requirements.	Check the position of the pile stones for joint horizontal and aligned height and for straight-ness in length and width by means of long straightedge or stretching line with water level. If necessary, adjust the position of the pile stones until the required position is achieved.
2. Put pile strips longitudinally on the squared timbers of the pile base.	The grains of the squared timbers and of the pile strips to have the same direction. Put one pile strip on each squared timber. Make sure that the pile strips have the same thickness.
3. Put several boards side by side and transversely on the pile strips until the intended pile width is reached.	The faces of the boards nearer to the heart to show upwards. Always let the edges of one cross-grained face (cross-sectional area) of all boards end with the edges of an outer pile strip.
4. Put the second layer of pile strips on the first layer of boards according to step 2. above.	Put the pile strips exactly vertically above the pile strips beneath (check with water level).
5. Put on the second layer of boards according to step 3. above.	Take into account the comments on step 3. above. Put the frontal longitudinal narrow face of the first board and one cross-grained face each vertically above the narrow faces of the bards-beneath (check with water level).
6. Repeat the steps 4. and 5. above until the intended pile height is reached.	Use safe ladder or scaffold when working in bigger height. Secure covering plates by fixing against weather influences.
7. Cover the top of the box-type pile with covering plates.
8. Identify the pile by fixing an identification plate.