Wooden subframes
made from dry fir wood, lime or pine-tree
batten thickness
|
21x41 mm |
DP/21 |
| |
23x63 mm |
DP/23 |
|
| |
32x65 mm |
DP/32 |
(multi-layered) |
| |
41x65 mm |
DP/41/32/D |
(multi-layered) |
| |
65x45 mm |
DP/45/3D |
(multi-layered) |
standard lengths; 27,30,33,35,38,41,50,55,60,65,70,73,81,
85,90,100,116,120,130,140,150...