Insulate and weatherproof your front door and boost your home’s security by installing a storm door
Storm doors can be stylish and functional at the same time. Look for one that has a solid inner core, a low-maintenance finish and a seamless outer shell. Accurate door measurements are critical to ensure your new door fits. This guide will show you the steps involved in installing a storm door in front of an existing slab door.
WHAT YOU NEED FOR THIS PROJECT
Install the rain cap with a screw if the manufacturer’s instructions recommend installing it before proceeding with the door installation.
Most doors are made so you can hang them with the hinges on either side using the same Z-bar. Put the Z-bar against the opening on the hinge side and mark the top with tape.
• Draw a cutoff line this distance from the underside of the top of the Z-bar.
• If the sill slants, follow the manufacturer’s directions.
• Cut along the line with a hack saw.
• With the exterior door closed, place the storm door in the opening and push the hinge side up against the jam.
• Make sure it is plumb and level.
• Open the storm door and add the remaining screws to secure the hinge-side Z-bar.
• Secure the top Z-bar with screws provided with a ¼-inch gap between the bar and the door.
• Check with a level to make sure it is plumb and check to make sure the door opens and closes freely.
• Make any necessary adjustments and add the remaining screws.
• Measure from the bottom of the rain cap to the top of the sill on the latch side of the door.
• Mark the measurement on the side Z-bar and cut with a hack saw.
• Make sure you adjust the cut to match the slope of the sill.
• Cut hinge-side Z-bar as in Step 3.
• Place it in the opening, tight against the rain cap. Adjust it so there’s a ¼-inch gap between the bar and the door’s edge.
• Screw it in place.