Plank (wood)

Bohle, also post, is the name given to a piece of lumber with a certain minimum thickness and width pronounced (a " very strong (wooden) board ").

Standard formats

  • According to DIN 68252 (sawn timber in general) that has a minimum thickness of 40 mm and a width of at least twice the thickness.
  • By way of derogation in force for the construction industry standard DIN 4074 ( lumber ) the width defined by at least three times the thickness.
  • In Austria, post pieces of wood with a rectangular cross section, thicker than a board ( according to the standard, which is a maximum of 35 mm thick in Austria ). By definition, a post, a thickness of at least 40 mm and maximum of 100 mm at a rough sawn width ≥ 18 cm. Planed posts can also have just 35 mm thick.

Colloquially also floorboards are called planks.


Piles are used because of their higher stiffness compared to boards

  • The construction as Gehbelag on scaffolding ( Austrian scaffold pole, then according to the standard of special wood quality, with chamfered corners and splice )
  • As bedding for heavy machinery, guns and the like
  • As Rüstholz ( aids in technical assistance intervention or on construction sites ), or for temporary small bridges ( eg for loading a truck by wheelbarrow )

The planks are specially processed by joiners and carpenters. Comparatively the most significant is its use in shipbuilding (see plank ), and the timber for building

  • To floors in subordinate areas ( stables, passages ), historically valuable floor ( ( floor boards ) with planks to over 1 meter in width )
  • To the surface ( decking ) of bridge tracks, wood and iron road and railway bridges
  • To Rahmstücken etc.
  • For the production of bulwarks

Mainly conifers spruce, fir and larch are processed to post, typical retail lengths are 300 to 500 cm.


A Unterlegbohle is a curved piece of wood with a flat and a round side. The corners and edges are usually protected with metal fittings against forces acting on the point of use.

Unterlegbohlen are versatile because of its simplicity. For example. for inferiority in the use of lifting cushion between the vehicle and the cushion or for bridging small streams. Even with stuck vehicles they can provide valuable traction.