These heavy-duty guard rail posts are USA-made and allow for easy connection of Steel Guard bolted rails and lift-out rails or safety gate. Posts are available in single-high or double-high rail selections and are pre-drilled in multiple configuration options for your unique needs: standard center/corner, offset side/end/corner, and corner. Each post is constructed from 4" square steel with 1/4" thick walls and 10" square base plates; includes (4) 3/4" x 5-1/2" anchors and a galvanized top cap.