Potatoes box for room ventilation system	Potatoes box for
Typ B10	pressure ventilation Typ B8-SD
Potatoes box for pressure
wall ventilation system Typ A8

Our large boxes are produced from the pine and spruce grown up North. The wood pores of such timber

are much more dense than that of the pine and spruce grown in Southern regions, making our material

noticeably more stable and durable.

All of our lumber, used to manufacture the boxes, is dried to a 10-12 percent moisture content. This

prevents the fungus from multiplying and the boards from deforming, facilitating further processing.

After drying, the boards are planed on all sides and sharp corners are rounded. Special routing is

performed, which is necessary to produce a stable box. Once the boards are calibrated to the required

dimensions, the gluing process follows. Special corrugated nails are used to tightly compress the boards,

helping to maintain the proper pressure to achieve optimal adhesiveness.

The structure of our boxes is what sets them apart from our competition. The box frame contains a

diagonal board, making it a self-supporting construction. Additionally, the upper and lower boards are

40mm thick, twice the usual thickness, making the boxes exceptionally durable and damage resistant.