252 * 888 = 223776 or 223.8 kg — the required number of ribbed rods (12 mm);
147 * 395 = 58065 g or 58.1 kg — the number of smooth rods (10 mm).
This is important! Do not rely on the erroneous opinion that the stronger the rods are attached, the stronger the foundation. Do not connect the rods with welding, as it destroys the structure of the metal. Better compound with knitting wire, and for this, use a special hook.