I built a long low media unit for my AV room. It is about 4 metres in length. (157.5″)
I bought 5 x MALM and cut the side panels of the MALM from 3-drawer height to 2-drawer height. I then assembled it as usual, as a 2-drawer dresser. And lined them all in a row.
I also added a strip of LED lighting under the top panel.