Michael,
I've made several different types of these over the years. Older ones used
treated 4x4 or the treated "garden ties" (that have flat sides but rounded
ends) and I've used cement cast tops and cedar/redwood latice tops,
but,
the last couple years I prefer , and will continue to use, treated 4x6 to
give a much nicer stable view with cement cast log rounds or cement cast
cypress cedar slabs. Both are cast as walkway pieces in a couple
sizes/shapes. They are sturdier and last longer that lattice tops for me. I
drill a hole through center with masonry bit and predrill a starter hole in
top of post then mount slab with a long lag bolt. I use a large washer on
lag bolt to distribute pressure. ( use some soap on the lag to go in nice).
BTW, I DON'T use cement to hold them in place. You don't really need it,
just tamp soil good around post using a 2x4 or something. Makes them easier
to move someday! Also, I DON'T go three feet down for frost. 2 feet works
just fine!. You are not building a house...just putting a poll in the
ground!BUT, it's best to use a post hole digger instead of spade so hole
stays roughly the size of post making filling and support easier/better.
Regards,
Dale Cochoy

Michael Pollock wrote:
I'm thinking of adding display posts to my backyard (often called Monkey
posts, although I've never known why). Anyone have any construction
advice? I was thinking of using treated lumber for the verticals and
pieces of slate (which I have on hand) for the horizontal surfaces. How
would I secure the slate if I made them this way?
Thanks for your help,
Mike Pollock
Westchester County, NY, Zone 6 "ish"
Webmaster for www.yamakibonsai.org

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