ORIGINAL PET DOOR INSTALLATION TOOLS REQUIRED FOR INSTALLATION Hammer and Awl (or Nail) » Drill and 3/8” Drill Bits » Sabre Saw » Phillips Screwdriver » Safety Goggles 1. DETERMINE TEMPLATE PLACEMENT For Original plastic pet door, use PLASTIC SLIDE AS TEMPLATE, center template (width) in middle of door; hold in place. Measure your pet at shoulder and position the top of the template 2” taller than your pet's shoulder.