If you want an expandable box just go up.  Build an expander that sits
on top of the existing box with an inner lip going into the base box.
It can be left loose or screwed on for a more permanent extension.
Start with a large low box (casters have helped the mobility of the toy
boxes in our house) then hope the kids grow faster than the box rises.
1x6 with a 1x6 inner lip offset half the depth is a reasonable size.

  Unfortunately the growth of most of the list members is likely to be
out (reducing net reach) rather than up (increased reach).

  Unless you have lots of time and a willing pittee (is that where the
word comes from?) - it seems like the logs are likely to dry and split
before you could rip them with a pit or frame saw.  I would vote for
hiring an ancient animal and plant powered (petrol Jeff) woodmizer mill
as Ester suggested.  Then use the time in less brutish pursuits. 

Steve
(Maybe still sore from bucking up a 2' diameter cedar log with a 1 man
crosscut saw)

-----Original Message-----
From: Marc@l... [mailto:Marc@listmoms.net] 

 At 06:29 AM 7/19/01 -0700, Jim Thompson wrote:
>Welcome aboard!

>Some of us are in the process of getting the material
>for blades to use in framesaws.  That might be one option for you if
>this is to be a one man operation.  Sounds like a big job to me though.

Are those the steroidal band-saw blades?  Hmmm, building a pit-type
frame 
might be an option, or were you thinking an oversize frame-saw?

Unrelated to this timber-harvesting my current projects are a couple of 
boxes - This-end-up type toy box and a storage box for Sam's Thomas the 
Tank Engine set.  Come to think of it, does anyone know how to make a 
storage box that expands?  He's not finished collecting the set and Brio

keeps introducing new pieces . . .    ;-)