On 6/20/2012 8:21 PM, Duesenberg wrote:
....

are they noramlly shimmed underneath?

Should be if needed--and if replaced a solid wooden threshold w/ an
aluminum one, it'll need it 'cuz they're not as thick. The ends will be
supported by the frame but the center has no support and w/ time people
_will_ walk on it and the inevitable will happen.

Not to mention that if it's flexible enough that it's noticeable, "that
just ain't right".

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