A1) W72 x D40 x H30 Clearance between trestles: 46½", with 10" overhang A2) W72 x D40 x H30 Clearance between trestles: 46½", with 10" overhang with 2-18" end extension B1) W84 x D44 x H30 Clearance between trestles: 54½", with 12" overhang B2) W84 x D44 x H30 Clearance between trestles: 54½", with 12" overhang with 2-18" end extension C1) W96 x D48 x H30 Clearance between trestles: 54½", with 18" overhang C1) W96 x D48 x H30 Clearance between trestles: 54½", with 18" overhang with 2-18" end extension