I was prepping up for laying artificial grass. Cleaned up the soil. Put a layer of weed barrier and laid 40mm crushed stone underlay. While I left it ...

Thanks @EricL and @Dave-1 for your ideas.I have started putting up a frame.Have a look.. 

I am doing my backyard project with a 2.5mt deck and will pave the rest.There is an uneven retaining wall which is a spot of bother. Can I get some id ...