People who are unable to cope with the construction of IKEA furniture should seek help, therefore! A construction manual was available in one (of three) packets, but is not needed for a normal understanding of technology. The unique structure is relative easily degrade and Weider outdated building should be avoided. The stability is ok as long as the rack is loaded. In summary: OK for the price, but certainly not professional quality. The product is aimed at the home user, aubauen in the basement and let stand.