How much will asphalt compact? Asphalt Compacts 1/4” per 1” of Asphalt Paved before Compaction.Example: If you want 2” of compacted asphalt we will lay 2.5” of asphalt and then Compact with Steel Drum Roller, which would leave 2” of compacted asphalt. By Level Pro|2019-08-13T14:08:26+00:00July 7th, 2018|Asphalt| Share This Story, Choose Your Platform! FacebookTwitterLinkedInWhatsAppPinterestEmail