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We have provided here the detailed technical specification for our engineered wood flooring (3 Layer Parquet) and our solid wood flooring (T&G Prefinished Solid Parquet). If you require any further technical information, please contact us.    3 Layer Parquet   Measurements mm Tolerance  General Specification 1 Strip 1600/1830 x 148.0 +/- 1.0 x 0.10 Humidity .... 7% +/- 2% Formaldehyde content .. < 0.1 ppm Varnished a) 5 coats of varnish b) Degrees of gloss:       Satin: 30% +/- 5% High gloss: 70% +/- 5% c) Wear rate: < 0.15 grs/100 rot   Adhesive quality of the glue  Mps > 0.7  Quality certificates ISO 9001 e ISO 14001 2 Strip 1830/2200 x 189.0 +/- 1.0 x 0.10 3 Strip 2200 x 189.0 +/- 1.0 x 0.10 Thickness 14.0 +/- 0.15 Thickness of top layer 3.0 +/- 0.20 Width of groove 4.5 +/- 0.10 Depth of groove 7.0 +/- 0.10 Thickness of tongue 4.5 +/- 0.10 Length of tongue - top 5.5 +/- 0.30 Length of tongue - bottom 7.0 +/- 0.30    T & G Prefinished Solid Parquet   Measurements mm Tolerance  General Specifcation Length 400/1200 +/- 1.00 Humidity ............ 7% +/- 2% Varnished a) 9 coats of varnish b) Degrees of gloss:       Satin: 30% +/- 5% c) Wear rate: < 0.15 grs/100 rot Quality certificates: ISO 9001 e ISO 14001  Width 83/90/120 +/- 0.10 Thickness 18.0 +/- 0.15 Width of Groove 6.0 +/- 0.10 Depth of Groove 6.0 +/- 0.10 Thickness of Tongue 6.0 +/- 0.10 Length of Tongue - top 5.5 +/- 0.30 Length of Tongue - bottom 7.0 +/- 0.30                       Crown Parquet Flooring Limited. Registered Office: 25 Hart Street, Henley on Thames, Oxfordshire, RG9 2AR. Company No. 05878811