I recently purchased one of those small (8x10) steel storage shed kits from
the local home improvement warehouse type place here. I'm not sure how
much anchoring I need for it. The instructions simply say "this shed must
be anchored", and they provide instructions for anchoring it to bare ground
using cable anchors, anchoring it to wood posts, or to a concrete
foundation, using their concrete anchors.
I have constructed a foundation/floor for it by building an 8x12 frame out
of 2x4 treated lumber (I made the foundation 2 feet longer so I could stack
my firewood on it as well), covered with 1/2" treated plywood. The shed is
securely attached to this foundation by a 2 1/2" screw at every mounting
hole, however the foundation itself is not anchored. The shed is also
nestled in to a wooded area, between trees and our house, so it is somewhat
shielded from wind.
Photo at: http://www.nullmodem.org/shed /
So my question is, do I need to provide additional anchoring beyond
attaching it to the foundation? My thinking is that the weight of the
shed, the foundation, the firewood pile, and the shed's contents are now
all contributing to holding it in place, so probably not. The shed itself
weighs only a few hundred pounds, but the combination of all of the above
comes in at at least 1,000 - 1,500 pounds (there's an old riding mower in
there, a regular mower, several snowblowers, etc... it's packed pretty
full.) Frankly, if we got strong enough winds to worry about, I think they
would more likely tear the shed apart before tipping it or moving it. Then
again, the cable anchors that can be purchased separately are rated at
2,000 pounds, so I'm not 100% sure.
Yes, I realize I could just go ahead and add cable anchors as well, "extra
protection won't hurt", but I'd prefer not to spend the money if they
really aren't necessary. Yeah, they're only about 30 bucks, but times are
tight, and $30 is $30. I've already spent way too much on this project as
it is, but I needed to get all this junk out of my garage. :-)
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