This trellis was sturdy and came with mounting brackets. I needed a taller trellis so when I saw how the trellis was put together I ordered a second and made one 12.5' trellis. I then used the remaining pieces to make a 4.5' trellis. The trellis is constructed of two exactly matching center sections, a top scroll section and a bottom leg section. Only needed to insert an additional center section to make the trellis taller. All left over pieces went right together to make a smaller trellis. No modification was necessary. Everything goes right together and you have all the necessary hardware also. The second trellis showed up in under 24 hours.....I was amazed at the speed of the delivery.