Wooden underconstruction

The substructure must be dimensioned in such a way that it can withstand any deformation during swelling and shrinkage during the year. It also must function as a stable substructure in the long term. Therefore, only wood of the same or similar density should be used for the substructure. For exotic wood terrace use only exotic wood underconstruction, for larch terrace use larch underconstruction, for thermo pine terraces use thermo wood underconstruction etc. For sufficient installation, only stainless steel screws should be used. The choice of steel grade depends on the specific wood type. The distance between underconstructions should not exceed 40-50 cm (depending on the thickness of the boards). E.g. th. 21 -22 mm = max. 40 cm and 25-28 mm = max. 50 cm.

Pine/joist impregnated 45x70x3900mm

Wood from impregnated pine for underconstruction i...

11.939 /pc
In stock: 2 733 pcs
Code: 45.70.3900
Thermo pine/joist 42x68x3900mm

Thermo pine joists are dimensionally stable, durab...

23.571 /pc
In stock: 7 915 pcs
Code: 42.68.3900 K sv
Czech Larch/joist 45x70x2000

Czech Larch is a wood rich in resins and therefore...

9.419 /pc
In stock: 1 458 pcs
Code: 45.70.2000 MD
Siberian Larch/joist 45x70x2700

Siberian Larch is a resin-rich wood and therefore ...

12.716 /pc
In stock: 6 602 pcs
Code: 45.70.2700 RU
Bangkirai/glued joist for outdoor use 45x70x3000mm

The exotic wood retains its durability due to the ...

14.835 /pc
In stock: 1 122 pcs
Code: 45.70.3000H
Joist_exotic wood 45x70x1050

The exotic wood retains its durability due to the ...

7.575 /pc
In stock: 59 pcs
Code: 45.70.1050 Jar
Joist_exotic wood 90x90x2740

The 90 x 90 mm masive joist can function as suppor...

58.607 /pc
In stock: 22 pcs
Code: 90.90.2740DRM


Thermo pine/joist 42x65x4500mm

Thermo pine joists are dimensionally stable, durab...

27.198 /pc
In stock: 2 853 pcs
Code: 42.65.4500 N