Products

Plank parquet

The production company Yantarnaya Pryad manufactures parquet of the trade mark:

Basic Concepts:

According to to National standard 862.1-85 «Parquet products. Piece parquet. Specifications» piece parquet consists of parquet planks.

Parquet plank is a detail of massive wood with mutually parallel milled layers and graded edges, with which it is linked with the similar adjacent planks while laying parquet floors.

Tongue is a protruding part of the parquet plank to link adjacent planks while laying the floor.

Mortise is a channeling on the side and face edges of parquet plank, which is entered by the tongue to connect with the adjacent plank.

Wear layer is the top layer of the parquet plank from the face side to the top part of the tongue or the mortise, whose wear-out determines the service life of parquet covering.

Face side of the parquet plank is the outside surface of wear layer; the backside is the surface opposite the face side.

The right parquet plank is the plank with the face tongue on the right (if looked at the face side), and with the tongue on the longitudinal edge (if looked from the watcher's side).

Main Requirements:

To grant the top possible quality level of ready-made parquet floor, not absolute dimensions of parquet planks (length, width, thickness) are important, but, first of all, allowable variations on their deviations from the nominal and humidity parameters are of importance.

According to National standard 862.1-85 maximum deviations of plank length make ±0,3 mm; width and thickness - ± 0,2 mm; the tongue should be 1 mm shorter than the depth of the mortise, and allowable variations on their dimensions must make -0.3 mm and + 0.3 mm (i. e. the tongue should never abut against the face side of the mortise). Maximum deviation from perpendicularity of adjacent edges makes 0.2 mm at the distance of 100 mm from the corner and is checked with arty square and dipsticks.

Maximum deviations from flatness of the planks:

• Longitudinal – 0.6 mm on the length 1000 mm ;
• Cross-section – 0.2 mm (not depending from plank width)

Maximum humidity of parquet planks wood makes: 9% ± 3% , i. e. from 6 to 12%.

Sorting piece parquet according to its outward view and processing quality :

As a rule, parquet planks sorting (selection) is made according to a certain set of parameters or to the outward view (presence or absence of gnarls, sapwood, color scale, inclination of wood fibres, etc.) or according to the kind of wood saw cut (radial, tangential) or according to both the former and the latter.

According to National standard 862.1-85 , depending on the quality level, sort of wood and processing, parquet planks are subdivided into two marks: A (the highest category of quality) and B (the first category of quality).

The comparative table of the sorting criteria

Note : according to geometrical parameters and humidity, parquet planks are not subdivided into the sorts. They are either corresponding to the standard or not, i. e. they are defect.
We manufacture when placed an order.