If You Have Trouble Finding An Umbrella Base That Fits, Consider This One
US Weight Umbrella Base
Dimensions: 16L x 16W x 6H in.
(we don't sell Umbrella bases)

We used to sell single color poly outdoor patio furniture. When we started putting black trim on our furniture it sold a lot faster.  It took us more than 1 year to get rid of our inventory built with 1 solid color because it just didn't look as nice.

Here is a picture of a solid black accent table between 2 black & bright color Adirondack chairs.  We try to keep solid black accent tables in stock.

The above 2 pictures may help you visualize how 2 Adirondack chairs can fit into smaller spaces such as hatchback vehicles and minivans.