Dimensions of wooden beams depend on the sizeload on the future overlap, on the type of filling the volume of the structural element (heaters, rolls), from the size of the span.
Ubukhulu bezinsika zamapulangwe kuxhomeke kubukhulu bomthwalo esikhathini esizayo, ngendlela yokugcwalisa umthamo wesakhiwo se-structural (heaters, rolls), kusukela ubukhulu besigaba.