D 6.2


D 6.2


Fig. 1

D 1.0 General information

D 1.2 Batten System Information

D 6.2 Specifier's Information

D 6.2.1 Laying Instruction

Fig. 2


1 - Wooden floor
22 mm solid hardwood parquet

Wood species:
Beech, Beech SylvaKet, Maple and Ash.

Grade and surface treatment: See B 2.0

2 - Nails
2.2 x 45 mm Junckers J-Nails.

3 - Blubat batten system
Laminated battens: Choice between
30 x 45 mm
45 x 45 mm
57 x 45 mm.
Including a 9mm continuous foam.

Batten centres: c/c 411.1 mm (411) or c/c 336.4 mm (336)

4 - Moisture barrier
Junckers Moisture Barrier, 0,2mm PEFoil see also D 1.2.

5 - Expansion gap at the wall
1.5 mm per metre width on each side and 1 mm per metre length at each end, but both min. 30 mm.

It is also required at fixed points, e.g. columns, see also D 1.2.


Junckers Blubat Sports Floor system is based on 22 mm solid hardwood floorboards nailed to a resilient subfloor of one layer of prefabricated battens.

The floor system is an area elastic type of sports floor with shock absorbency and elasticity suitable in multi-purpose sports halls as well as for Squash.

The construction height is 52, 67 or 79 mm depending on batten choice, see Fig. 2.

The sports floor system fully conforms to EN 14904:A3. Please note that full documentation of a floor system comprises the data in D 1.0, D 1.2, D 6.2 and D 6.2.1, see Fig. 1.

Fig. 3


22 mm solid boards nailed to a substructure of prefabricated battens. Manufactured as a single layer structure of 30 x 45, 45 x 45mm or 57 x 45 mm laminated battens inclusive of a 9 mm continuous foam strip on the underside. 

The subfloor must be flat, with a maximum deviation of 2 mm under a 1.5 metre straight edge (UK: 3 mm under a 2 m straight edge).

The surface must be smooth. Any minor irregularities must be corrected.


The boards are nailed to the battens according to a fixed 10-board rule, see D 1.2.

The boards are laid in a continuous pattern with well-defined distribution of board header joints from row to row of 2 x the batten centres, i.e. 822.2 mm with c/c 411.1 mm, or 4 x the batten centres, i.e. 1345.6 mm with c/c 336.4 mm.

In that way that all board headerjoints are supported, see also D 6.2.1. 

Fig. 4

The Blubat Sports Floor System is tested and approved for below mentioned maximum point loads, in relation to load area and batten centres:

c/c 336 mm:
Diameter, 25 mm: 4.5 kN ( 450 kg) 100x100 mm: 5.5 kN ( 550 kg)

c/c 411 mm:
Diameter, 25 mm: 4.0 kN ( 400 kg) 100x100 mm: 5.0 kN ( 500 kg)


The Blubat Sports Floor System is designed to ensure good technical properties in relation to the expected loads in connection with sports activities.

The load-bearing strength of the system depends mainly on the loading type and load area. Table 1 shows use of the floor system in relation to the load classes in EN 1991-1- 1. See Fig. 4 for specifik point load bearing strength.

For further definition of load classes and types, see D 1.0 - Stiffness and loadbearing strength.

Table 1 Loading types
Loading category Area- and Point load Wheel load
C4: Assembly halls for physical activity, e.g. gyms/theatres  Approved* Approved**
C5:  Assembly halls which can be crowded, e.g. sports halls incl. stands.  Approved Approved**

* Point load area min. 200 x 200 mm ** Wheel loads, see D 1.0 - Table 2 


Net consumption for 1000 m² (Length x width = 40 x 25 m) Blubat batten system:

  Batten centres 336 Batten centres 411
Floor Boards Area + 2% wastage Area + 2% wastage 
J-Nails 25,000 pcs 20,000 pcs 
Blubat battens 3,000 rnm 2,500 rnm
Loose tongues 67 pcs (5 bags) 67 pcs (5 bags) 
Moisture Barrier Area + 15% wastage Area + 15% wastage 
SylvaFix Header joint adhesive 3 bottles (3 x 0.75 litre) 3 bottles (3 x 0.75 litre)