This bench, of cedar 4x4s and tongue and groove siding, has a hammered copper top. Sitting on top of it is a plastic lined potting soil box. It looks pretty tidy here, but it gets a lot of use by my gardener wife and often looks pretty gritty. Hammering copper is no picnic.
The code requires installing an approved material to slow the spread of fire between floors and adjacent vertical and horizontal cavities — here are the allowed materials and required locations.
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