LEGO CUUSOO

Here is mark II hardware store where I changed the whole building design to suit an old country town in modern times.
You can easily see a centre display with stickered tiles acting as hardware and plumbing lines and tools on either side of it.
You can see how tech pins can be used to hold tools like pick axes, shovels and brooms.
In a simpler design of this actual hardware lines could be stored in drawers represented by 1x2 jumper tiles with a single stud covering a large section of wall behind the counter....though it would add the feel of a very old style hardware store.