Knotted Nylon Netting

I need knotted nylon netting with large, square holes (the holes should be approximately 6 inches wide by six inches tall) capable of supporting 225 pounds of weight.  The netting will be used to support plants growing on a trellis.  Ideally, the netting will be provided to me in panels measuring 4 feet wide by 5 feet tall. If panels aren't possible, then I need it delivered on a roll where the width of the roll is either 4 feet or 5 feet.  It is very important that the netting be strong and capable of supporting 225 pounds of weight on one 4 by 5 foot panel.