Is it possible to build a technical rack only from boards with a section of 5×15 cm?

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the arrangement of cellars, utility rooms and garages often involves the placement of shelving. These designs allow you to store a lot of things, including tools and food supplies. The question is whether it is possible to quickly make the product with your own hands and whether it is necessary to purchase a large range of lumber for the work (the answers are “yes” and “no”, respectively). With a thrifty approach, you can easily get by with only boards measuring 50x150x6000 https://lesresurs1. com/product/%D0%B4%D0%BE%D1%81%D0%BA%D0%B0-%D0%BE%D0% B1%D1%80%D0%B5%D0%B7%D0%BD%D0%B0%D1%8F-50%D1%85150%D1%856000%D0%BC%D0%BC/ mm. Of course, you will also need good fasteners.

What will be the width and depth of the shelves?

Without making longitudinal cuts, by default you get shelves 15 cm deep; making them narrower does not make sense. But twice as wide is quite rational. The final width of the double element will be 30 cm, this is already a good area for laying large items (boxes, equipment, power tools, spools of wires, etc.
You will just need to strengthen the fixation of the shelves. To do this, it is enough to cut pieces of wood 20-30 cm long and “tap” the double elements from below with them, attaching the heels to the side posts at the same time. By the way, it is not necessary to increase the width of the racks. If the supply of boards is small, just step back from the wall at a distance of 7-10 cm, but then be sure to attach the rack to the ceiling too (and not just to the floor and walls).

Complicated but economical option

Another way to get by with just boards 15 cm wide and 5 cm thick:

• split the board lengthwise in half or into three parts;
• use the resulting parts as side vertical stands, 2 pieces each. from each end of the rack (the walls will not be continuous, but with intervals).

Under each 30 cm wide shelf at both ends of the rack, fill horizontal pieces from the cut to lay double boards on top. You won’t have to buy any special bars. It should be remembered that the thickness of 50 mm provides the board with high resistance to deflection loads. This determined its “versatility” in the design of wooden structures.