Modern Guest Seating Clean, rectilinear lines and thoughtful attention to detail define this modern guest seating line. Key Features Available in stacking or non-stacking models: arm, armless, and stool. Upholstered seat with either upholstered or wood back. Optional upholstered arm caps. Frames are crafted from 16-gauge steel tubing with carefully polished joints throughout. Chrome, Satin Chrome, or Powder Coat finish available on frames. Stacking vs. Non-Stacking Mark 2 chairs are available as either stacking or non-stacking. The choice relates to both style and functionality. Armless: The non-stacking model offers a simpler, more pure form; while the stackable model is 2? narrower to fit tighter spaces more conveniently. Armchair: The overall widths of the stacking and non-stacking models are the same, however the seat of the stacking model is 2? narrower. Sustainable Design Features GREENGUARD IAQ Certified. Recycled content steel frame. CARB-compliant plywood seat. CFC-free polyurethane foam cushions (upholstered models). VOC-free powder coat finish.