Measure the mid point of the picture and mark it. (I like to temporarily use a small bit of red tape) They come in pairs which hook over each other. So you'll need two pairs. Attach two to your picture and two to the wall.

It's very important to get your j-hooks absolutely level (use a laser level), and ensure the space between them exactly matches the strap hangers. If you find even these hardened steel pins bend when you hammer them in then you really do have hard walls. Try these hard wall hooks which are specially for very hard walls. You might need to attach the cord to the rings if your mirror has two D-rings and a metal or string cord. Make sure you tie an unslippable knot if it’s a string cord, or for metal, twist the cable securely together with it doubled over for at least two inches. For D-rings, you’ll need one or two picture hooks securely affixed to your wall and carefully measured so the mirror hangs straight, centred and without the hooks showing! Turn the picture over and measure down from the top where the picture hook will sit. Hold the cord taught with the hook as this is how it will be when hung.Mirror plates are an alternative way to hang things. They come in several sizes and are often the best way to hang a mirror In addition to the fixings for the mirror and wall, other tools you’ll probably need are a tape measure, a pencil for marking the wall and a spirit level. You’ll probably want another person with you if the mirror is heavy. Flush plates are very useful as they will hold heavy items, but also are completely hidden. The disadvantage is that they are a bit fiddly to fit and you need to get your measurements spot on!!

A heavy mirror may come supplied with strap hangers on each side. These can be a bit fiddly to hang as you need to get you measurements spot on. For these you'll need a pair of J- hooks screwed to the wall. Transfer this measurement to the wall and mark down from your wall mark to give the exact position of the hook. Your paintings and mirrors should come with fittings already attached so you should only have to think about what to attach them to the wall with. Height is a personal choice. I like to roughly get the middle of the picture at my eye level (I'm 5'10")Tip If when you get the heavy picture up and it's not level, rather than adjusting the j-hooks you've screwed into the wall it easier to to adjust the strap hangers on the picture. Simply unscrew on and re screw. in the desired position Get the first hook up and use that to measure the exact distance across for the 2nd one then use your laser level to get them perfectly level. Hold the picture up to the wall and decide the best spot. (you may want to measure and mark the wall if you want to get the picture right in the middle horizontally)