Racks for the cultivation of mushrooms and similar fungi

Rack for the cultivation of mushrooms and similar fungi, comprising vertical girders which have been mounted in two parallel planes, and troughs for the cultivation of the mushrooms, said troughs being superimposed horizontally and fixed between said girders and each one of said troughs comprising a bottom and side slats, characterized in that the side slats consist of extruded aluminum profiles to be secured to the inner sides of the girders and an upper edge lying at a distance from said girders, said edge may be used as rails, and a substantially vertical, flat inner wall extending from the upper edge till close to the bottom of the trough, that said bottom is constituted by horizontal, extruded aluminum members running in transverse direction, said aluminum members being connected to the side slats adjacent the girders, each one of said aluminum floor members comprising a top flange having a smooth surface and at least one vertical web provided with openings near the top flange, through which bars or tubes protrude, said bars or tubes connecting the floor members with each other and constituting the bottom of the trough together with the floor members, and that short sections of connecting members made of extruded aluminum connect the ends of the floor members to the side slats.