Home Depot offers the Seville Classics Expandable Kitchen Counter and Cabinet Shelf
in Silver, model no. SHE14052, for $14.99
. Opt for in-store pickup
to dodge the $5.99 shipping charge. (Amazon
charges the same with free shipping for Prime members.) Outside of other Amazon listings, that's the lowest price we could find by $8, although we saw it for $5 less last summer. It measures approximately 9" x 16" x 6" and can expand up to 30" wide.