BS EN 13629-2020 pdf free download.Wood flooring — Solid individual and pre-assembled hardwood boards This document specifies the characteristics of individual hardwood boards and pre-assembled hardwood boards with grooves and/or tongues for internal use as flooring. This document covers hardwood boards with or without surface coating.
This document does not cover solid parquet elements. (See Annex C).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 351-1, Durability of wood and wood-based products — Preservative-treated solid wood — Part 1: Classification of preservative penetration and retention
EN 460, Durability of wood and wood-based products — Natural durability of solid wood — Guide to the durability requirements for wood to be used in hazard classes
EN 1309-3, Round and sawn timber — Methods of measurements — Part 3: Features and biological degradations
EN 1534, Wood flooring and parquet — Determination of resistance to indentation — Test method
EN 13183-1, Moisture content of a piece of sawn timber — Part 1: Determination by oven dry method
EN 13183-2, Moisture content of a piece of sawn timber — Part 2: Estimation by electrical resistance method
EN 13647, Wood flooring and wood panelling and cladding — Determination of geometrical characteristics
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 844:2019, EN 13756:2018 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1 solid individual hardwood board
wide and generally long solid (single layer) hardwood element which has parallel sides, is machined to a regular thickness and profile(s) with profiled edges and ends and is capable of being assembled with other analogous elements (see Figure 1)
3.2 solid pre-assembled hardwood board wide and generally long solid (single-layer) hardwood element, pre-assembled from several strips in length and width by dovetailing, edge gluing and end jointing which has parallel sides, is machined to a regular thickness and profile(s) with profiled edges and ends, and is capable of being assembled with other analogous elements (see Figure 2)
3.3 strip
smallest single item forming the pre-assembled board
3.4 thickness above the groove
thickness between the face and any discontinuity such as a change in the profile (excluding chamfering), a groove/glue pocket or a glue line (excluding the glue line of dove-tail joints)
4 Specific product requirements
4.1 Wood species
A list of the most commonly used hardwood species for wood flooring as described in this standard is given in Annex A.
4.2 Finishing
The product may be delivered with a factory applied surface coating which allows the product to be taken into use immediately after installation. The surface treatment used and any artificial change of the natural wood colour shall be stated in the product description.
.3 Appearance
4.3.1 General rules
Tables 1 to 4 define the classification relating to appearance rules for the face and for the non-visible parts (back and edges) of an element of the most commonly used species for solid wood flooring as defined in this standard.
Features shall be measured according to EN 1309-3 (knots assessed according to the general method in EN 1309-3). Bio deterioration, permitted only for certain appearance classes (see Tables 1 to 4) is measured according to EN 1309-3.
A classification with three appearance classes is specified, designated ○, Δ and  .
A classification named “Free class” is based on the principles laid out in Annex B.
The face shall include all the visible surface of the element.
Any continuous glue joint which allows renovation without significantly changing the appearance or the functional characteristics is acceptable.
4.3.2 Classification
The class shall be specified.
The decorative appearance of each species will vary with class.
NOTE The fact that some classes allow many natural characteristics is important when specifying decorative appearance.
4.3.3 Rules for the most commonly used species
4.3.3.1 Quercus spp. (oak)
Rules for oak are given in Table 1.BS EN 13629 pdf download.