I previously bought quite a few shelving racks from another seller which were very flimsy, used thin gauge metal and thin boards (175KG). They were difficult to put together. Upon purchasing these 'heavy duty' racking from Nöa and Nani, i was pleasantly surprised. Price was same as my 3 year old racking and quality was a lot better. I purchased 6 bays and converted them to 8 bays as i did not need them to be so high. (by cutting the top leg extentions in half). This also allows me to use the top tiers as one continious surface to enable storage of any long length (3.6m) items. I highly reccommend these heavy duty racks.