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Need to cover a couple of ponds in the garden to stop little ones falling in. I'm going to use rebar mesh, but not sure what wire guage i'll need.
Pond is about 4m diameter and i'll support the mesh with some brick pillars in the middle.
So what diameter wire could i get away with - 7mm? And also whats the spacing on rebar mesh is it 200mm? Can you get smaller spacings (i mean the size of the squares formed by the rebar wires)
cheers
It's normally sold by density (kg/m2) rather than mesh size (based in my experience of buying it). The stuff I bought was quite flexible, it would need anchoring over a 4m span to stop it sinking in the middle.
I'd be tempted to go for some galvanized weld mesh, better looking than horrible rusty rebar mesh.
http://www.franklinsteelplc.co.uk/steel/reinforcing.htm
have a look at that table.
It's priced by weight, but sold/specified by shape code.
Typically something like "A192".
The first letter represents the mesh shape/spacing, ie A is 200x200 , B is 100x200, etc
the number is the effective area of mesh (number of rods x individual X-section) in metre wide section of your slab.
A142 or A193 are most common in smaller building works, and likely to be somewhere near what you're looking for. A193 is the 200x200 , 7mm bar mesh that you were probablly originally thinking of.
The correct term is 'fabric' not mesh (not many people know that!). Make sure that you cover the ends (you can buy end covers) so that the children don't cut themselves