Q1:Does each panel need to attach to the back surface? Just looking at these for a trade stall, so wondering do they all clip together and stay together so they could just be hooked/hung from the top to make a back drop? (Hope that makes sense lol).
A: Not necessarily, they all clip together, however to get them to look good the surface behind needs to be supportive, perhaps attaching them to a wire mesh that is secured top and bottom.
Q2:Do you supply installation instructions for vertical old concrete retaining walls?
A:Not specifically, however there are plenty of guides for different surfaces online. One option would be to attach heavy duty PVC coated wire mesh to the wall using expansion bolts or masonry bolts and then zip tie the panels to this mesh. If you get in contact with our sales team they'd be happy to help further.
Q3:How far out do the hedges leaves stick out? Guessing around between 30-50mm?
A:Yes correct approx 40mm, we actually have some on display at our Auckland Store if that is local to you.