Patent attributes
A knockdown shelf structure includes multiple unit board members, each of which forms first jointing portions and second jointing portions, wherein each first jointing portions is engageable with a corresponding one of the second jointing portions of another unit board member so as to joint and securely couple these two unit board members to form a large span of support board by jointing a large number of unit board members together and wherein each unit board member has a bottom forming third jointing portions; and multiple elevating members, each of which has a top rim structured to be jointable to each of the third jointing portions of the unit board member so as to elevate the unit board member upward, whereby a shelf structure for supporting articles thereon is formed by assembling the unit board members and the elevating members together.