Expansion rack for compressor mounting

A method comprising:

• arranging a first metal beam in a linearly horizontal direction, the first metal beam defining:
• a plurality of first cavities along a top surface of the first metal beam, each first cavity being of a first shape, each first cavity separated from another first cavity by a first distance;
• and
• a plurality of second cavities along the top surface of the first metal beam, each second cavity being of a second shape different from the first shape, each second cavity separated from another second cavity by a second distance greater than the first distance;
• arranging a second metal beam in a linearly horizontal direction, the second metal beam defining:
• a plurality of third cavities along a top surface of the second metal beam, each third cavity being of the first shape, each third cavity separated from another third cavity by the first distance;
• and
• a plurality of fourth cavities along the top surface of the second metal beam, each fourth cavity being of the second shape, each fourth cavity separated from another fourth cavity by the second distance;
• and
• coupling a mounting bracket to the top surface of the first metal beam at a first mounting cavity of the plurality of second cavities and the top surface of the second metal beam at a second mounting cavity of the plurality of fourth cavities, the mounting bracket configured to further couple to a compressor.

An apparatus comprising:

• a first metal beam arranged in a linearly horizontal direction, the first metal beam defining:
• a plurality of first cavities along a top surface of the first metal beam, each first cavity being of a first shape, each first cavity separated from another first cavity by a first distance;
• and
• a plurality of second cavities along the top surface of the first metal beam, each second cavity being of a second shape different from the first shape, each second cavity separated from another second cavity by a second distance greater than the first distance;
• and
• a mounting bracket configured to couple to the top surface of the first metal beam at a first mounting cavity of the plurality of second cavities, the mounting bracket configured to further couple to a compressor.