From http://www.chiefmfg.com/productdetail.aspx?ProductID=10772 ... the rack will hold a maximum weight of 175 lbs.
The product's manufacturer rates the maximum supported amount of weight this rack can hold as 300 pounds.
The product description for this Maxicam dumbbell rack states that it will hold 6 pair or a maximum of 12 dumbbells of any standard weight, with no maximum capacity listed. This is a heavy duty rack weighing over 100 lbs.
This rack is designed to hold 13 pair of hex or VTX dumbbells ranging from 3 to 50 lbs.
This weight rack will reliably hold up to 300 lbs.
This unit can hold up to 550 pounds of hold hex or pro style dumbbells.
The Maxicam Spider Rack has a maximum weight capacity of 800 pounds.
The Maxicam 3005 Dumbbell Rack can hold a maximum number of 20 dumbbells.
Each shelf on this dumbbell rack can hold upto 200Lbs. of weight a piece.
This can hold 9 dumbbells ranging in weight from 5 to 50 lbs for a total of 450lbs
This rack does not have a maximum weight load listed as it is only for accessories such as jump ropes, cables and bar handles.
Take a look at the maximum weight it says it can hold. If you are under this weight, then I don't see a problem with it. if not, then I wouldn't advise it.
This rack is rated by the manufacturer as having a maximum capacity of 400 pounds of weight.