On 28/01/2011 00:26, Gordon Williams wrote: > A post spike is a heavy metal spike about 24 or 30 inches long with a met= al > box (usually 4" x 4") attached to the top, designed to hold the base of a > wooden fence post. You simply drive the post spike into the ground where = you > want to put your fence post and then insert the wooden post into the box. > The idea is to provide a convenient and economical way to build a fence -= no > need to dig holes and pour concrete, and the post spikes only cost a few > dollars each. > > I've used them and they are simple to use. If they aren't rigid enough t= hen > add guy wires. Good idea, I've used them too and they work quite well. I think maybe the easiest way to provide (easily removable) rigid posts=20 is to make sure the are driven in deep, i.e. the deeper you go, the more=20 stable they will be. If wobbling (which they may do depending on how=20 snug the fit is, but will not "fall over" - two different problems) is=20 an issue, then guy ropes or (more permanent) concrete (or sand maybe)=20 poured around base should work. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .