Rail mounting system for furniture

An extendable wall rail system, comprising:

• a first rail member and a second rail member, each having a rail member first surface configured for attachment to a wall, a first retaining arrangement portion, and a second retaining arrangement portion;
• a joining member including a plurality of first engagement portions and a plurality of second engagement portions, the joining member configured to releasably join the first rail member to the second rail member via matingly engaging i) the first retaining arrangement portion of the first rail member and the first retaining arrangement portion of the second rail member with the plurality of first engagement portions and ii) the second retaining arrangement portion of the first rail member and the second retaining arrangement portion of the second rail member with the plurality of second engagement portions, to form a rotationally rigid joint between the first rail member and the second rail member;
• and
• a washer;
• wherein the first rail member and/or the second rail member includes a plurality of through holes arranged spaced along a longitudinal extension of the corresponding rail member for attachment of the corresponding rail member to the wall;
• wherein the first rail member and/or the second rail member further includes an enlarged through hole having a diameter that is greater than a diameter of the plurality of through holes;
• wherein the washer is movable along the first retaining arrangement portion and the second retaining arrangement portion of the first rail member and/or the second rail member;
• and
• wherein the washer includes a longitudinal through hole having, when engaging at least one retaining arrangement portion, a longitudinal extension arranged at an angle relative to a longitudinal extension of the first rail member and/or the second rail member.

An extendable wall rail system, comprising:

• a first rail member and a second rail member, each having a rail member first surface configured for attachment to a wall, a first retaining arrangement portion, and a second retaining arrangement portion;
• and
• a joining member including a plurality of first engagement portions and a plurality of second engagement portions, the joining member configured to releasably join the first rail member to the second rail member via matingly engaging i) the first retaining arrangement portion of the first rail member and the first retaining arrangement portion of the second rail member with the plurality of first engagement portions and ii) the second retaining arrangement portion of the first rail member and the second retaining arrangement portion of the second rail member with the plurality of second engagement portions, to form a rotationally rigid joint between the first rail member and the second rail member;
• wherein the first rail member and/or the second rail member includes a plurality of through holes arranged spaced along a longitudinal extension of the corresponding rail member for attachment of the corresponding rail member to the wall;
• and
• wherein the joining member includes a plurality of through holes configured to coincide with a plurality of corresponding through holes of the plurality of through holes of the first rail member and the plurality of through holes of the second rail member when the joining member is arranged to extend the first rail member with the second rail member.