How to Leave a Gap for Carpeting When Installing a Baseboard


If you're remodeling and installing new baseboard trim in a room where the carpet hasn't been installed yet, the trim needs to be positioned so there is a gap in between the trim and the sub-floor. This will provide room for the carpet installer to tuck the carpet under the trim and will also prevent your trim from being hidden by the height of the carpet. You'll want to leave approximately a 1/4-inch gap in between the sub-floor and trim.

Things You'll Need

  • Baseboard trim
  • Miter saw
  • Tape measure
  • Stud finder
  • Finishing nails
  • Hammer
  • Cut six 3-inch pieces of baseboard trim on the miter saw.

  • Take two of the pieces and place one at each corner of the wall. The trim should be laying flat on the sub-floor and the edge should be touching the wall.

  • Place the other four pieces on the sub-floor along the wall, spacing them out every four feet. If the wall is extremely long and you need more short pieces of trim, cut more with the miter saw.

  • Measure the length of the wall and cut the piece of baseboard to the correct length.

  • Place the baseboard up against the wall and rest it on top of the baseboard pieces on the floor that are acting as spacers. Use the stud finder to find the studs behind the wall, then use the finishing nails and hammer to secure the baseboard to the wall. You need to hammer the nails into the studs behind the wall.

  • Pull the baseboard spacers out from under the baseboard trim and continue working your way around the room.

Tips & Warnings

  • If you do not have any extra pieces of baseboard trim to use for spacers, you can take any type of wood and use a miter saw to cut them to 1/4-inch widths and place them on the sub-floor along the wall.

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