Contents: 2 rails at 600 mm, 2 rails at 400 mm and 8 anchor nails. 

Tools Required: Tape measure, hammer Drill, 6.5 mm bit, small level, hammer, marker. Would also recommend a dolly punch.

Procedure:  

Determine actual size of pits, ensure SQID will fit, trim if necessary. Determine level within pit for location of SQID.(Solid concrete rather than mortar). Mark out levels and hole positions using a level and individual rails as a template. Recommended staring with a long rail first, working around the pit, drill holes accordingly, hammer in rails. Check SQID fitting, Replace Grate.