Transport rollers
The presence of
rollers or other similar devices that allow you to roll the structure along the floor. Drying racks usually do not weigh so much as to create problems when carrying, even quite large ones; but with laundry hanging out, moving from place to place without rollers can be quite a challenge. In addition, transport rollers are often found in models with 3 — 4 tiers, which are inconvenient to carry, not so much because of their weight, but because of their bulkiness.
Dimensions (unfolded)
General dimensions of the drying rack in working position, taking into account all additional elements — side wings (see above), retractable parts (see "Design"), etc. This parameter will allow you to estimate how much space is required to use a particular model.
Dimensions (folded)
General dimensions of drying rack in the folded position. The smaller they are, the more convenient this model is in storage and transportation.