WIREMOLD / OPEN SPACE 880 SERIES™ FLOOR BOXES 880 Series Stamped Steel Floor Boxes Ordering Information 885B Stamped Steel Floor Box 2 7/16 " (62mm) Stamped steel, shallow single-service. 4 3/16 " (122mm) 4 3/16 " (122mm) 4 3/16 " (122mm) Knockouts: Back 1/2 " Trade Size 3/4 " Trade Size 3/4 " Trade Size 3/4 " Trade Size Side Top Side 3/4 " Trade Size 3/4 " Trade Size 1/2 " 1/2 " Trade Size 3/4 " Trade Size Front 1/2 " Trade Size 3/4 " Trade Size 1/2 " Trade Size 1/2 " Trade Size 1/2 " Trade Size Front 1 " Trade Size 1/2 " Trade Size Trade Size 1/2 " Trade Size Side Top Side Knockouts: 1 " Trade Size Back 3/4 " Trade Size 3/4 " Trade Size 2 3/4 " (122mm) 886B Stamped Steel Steel Floor Box Stamped steel, deep singleservice. 4 3/16 " (122mm) 880 Series Cast-Iron Floor Boxes Ordering Information 887B Cast-Iron Floor Box 2 5/8 " (67mm) Cast iron, shallow singleservice. 4 3/16 " 4 3/16 " (122mm) (122mm) 4 3/16 " (122mm) 4 3/16 " (122mm) 3 1/2 " (89mm) 889B Cast-Iron Floor Box Cast iron, deep singleservice. Knockouts: Back 3/4 " Conduit Thread Side Top Side Side Top Side 1 1/4 " Conduit Thread Knockouts: Back 1/2 " 1/2 " Conduit Thread Front 3/4 " Conduit Thread 1 1/4 " Conduit Thread Conduit Thread 1 " Conduit Thread Front 1 " Conduit Thread WWW.LEGRAND.US/WIREMOLD 91 FLOOR BOXES INDEXhttp://WWW.LEGRAND.US/WIREMOLD