On Tue, 24 Aug 2004 23:53:33 -0400, Sunny wrote:

I'm thinking I'll rout all 4 edges of the 2x4 with a 3/4" round-over
bit, and mount it on the vertical face of the dock using 8"x3/8 lag
screws set into the gap between the two face boards with short lengths
of 3/4" galvanised steel pipe as spacers

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That's an interesting variation. I'm concerned that the 2x4 may have
a tendency to wobble however unless you use fairly large diameter
pipe. My spacers are 2x4 pieces cut to about 4 inch lengths.