Bard 30WA6
Bard 36WA5
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air27.875"7.875"27.875"13.875"28"8"28"14"38"38.25"74"74"16.5"15.25"1.375"1.375"18"18"32.875"32.625"Supply AirReturn AirSupply AirReturn Air
OPENING MATCH

Your openings match up but double check the cabinet surroundings. Over time equipment coils have gotten larger for better efficiency and cabinet dimensions have changed.

Match Bard 30WA6 Bard 36WA5 Difference
Unit width38"38.25"+0.25"
Unit height74"74"0"
Supply Air27.875" x 7.875"28" x 8"+0.125" x +0.125"
Return Air27.875" x 13.875"28" x 14"+0.125" x +0.125"
Distance from the top to Supply1.375"1.375"0"
Distance between Supply and Return18"18"0"
Distance from Return to bottom32.875"32.625"-0.25"
Mismatch Bard 30WA6 Bard 36WA5 Difference
Unit depth16.5"15.25"-1.25"
Unit weight375 lbs385 lbs+10 lbs