can i just say, if they're for horse fields, please please please don't buy the metal ones with the angles going across at 45 degrees to the horizontal bits. they can cause horrific injuries if a horse paws or kicks, puts a foot through, and then the foot goes down to the tight angle part and gets trapped. with a wooden gate of this design the horse can sometimes smash the gate (although it usually injures itself in the process) but with metal ones, it usually breaks the leg.
Newmarket Horse Requisites sells the only gates i will have on horse fields - the full mesh ones. or, cover other gates with close mesh.
very sorry if that sounds like a lecture, it's really just to try to prevent more horrible injuries!