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How to install PVC trim

Updated April 17, 2017

PVC trim around windows and door openings weatherproofs your house by blocking outside air from entering into the home through cracks and crevices. PVC trim is a less expensive and more durable alternative to wood trim. With some minor handyman skills and a tape measure, you can complete installing trim around any opening in a short amount of time.

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Measure the length and width of the window opening. The measurements will determine the size to cut the trim.

Cut two sections of trim to 15 cm (6 inches) wider than the width of the window. For example, if the window measure 60 cm (24 inches) wide, you will need two sections of trim that measure 75 cm (30 inches) wide.

Cut two sections of trim to 15 cm (6 inches) longer than the height of the window. For example, if the window measure 70 cm (28 inches) high, you will need two sections of trim that measure 85 cm (34 inches) long.

Lay all four sections of PVC trim on a flat surface, running horizontally in front of you with the back facing upward. Measure in 7.5 cm (3 inches) from each end of the trim along the top edge.

Draw a line back to the bottom corner from each 7.5 cm (3 inch) line to create a 45 degree angle. Cut along the lines using a handsaw.

Apply constructive adhesive to the back side of the two trim sections that measure the width of the window. Line the 7.5 cm (3 inch) marks previously measured to the corners of the window, and firmly press the trim onto the wall.

Apply constructive adhesive to the back side of the two trim sections that measure the height of the window. Line the outer corners of the trim to the corners of trim previously installed and press PVC trim into place.

Warning

For trim applied around door openings, do not cut a section of trim for the bottom of the opening. Avoid angling the bottom of side trim around doors.

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Things You'll Need

  • PVC wall trim, 7.5 cm by 1.8 m (3 inches by 6 feet)
  • Tape measure
  • Pencil
  • Constructive adhesive
  • Hammer
  • Handsaw
  • Straightedge
  • Step ladder

About the Author

Nicole Byerly has been writing since 2003. She has published multiple works that have appeared in "Campus Philly." Byerly is pursuing a Bachelor of Science in cybersecurity at Utica College.

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