Installation with Seams

This is not as hard as it appears! You can do it yourself by following these easy instructions. If you have to make a seam, do it before installing the carpet.


You will need the following tools for carpet seaming:

  • KangaTools® Seam Cutter or Utility Knife
  • String Chalk Line
  • Straight Edge
  • Seam Sealant/Sealer
  • Double-faced carpet tape (preferably KangaTape®brand) or adhesive



  • Lay carpet pieces together with the pile going in same direction. This is very important!
  • Make sure you have at least 8”-12” of excess carpet width before making a seam.



Cut carpet as straight as possible with seam cutter.

  • For cut-pile, cut-loop or pattern style carpets, ROW CUT the first side of the seam and TRACE CUT the other side.
  • For straight-loop style, such as Berber, row cut both sides.



  • Use seam cutter to make cuts from the face side of the carpet.
  • Pre-open the yard row to be cut by sliding a pencil along the row or by using the row opening tip of the seam cutter. Two passes may be necessary. (Don’t cut carpet yet)
  • Now, using the entire length of cutter, slide down the pre-opened path to cut completely through the carpet and cushion.
    • Press cutting blade through carpet, keeping the cutter straight up and down.
    • Try to cut the carpet in one pass.
  • Repeat instructions if row cut is needed for second piece of carpet. If trace cut is needed, see below.



  • Use seam cutter to make cuts from the face side of the carpet.
  • Place the first piece of carpet with the cut edge where the seam will be on the floor.
  • Slide the carpet to be cut under the trimmed piece, face side up. The overlap should be at least 2”. If patterned carpet, align patterns as needed.
  • Make sure there is enough carpet to reach walls and into doorways.
  • Using top piece as a guide, cut bottom carpet with a seam cutter, keeping cutter straight up and down and against top carpet piece at all times.

Once both pieces have been cut proceed to the next step.



  • Once both sides of the carpet have been trimmed, fold back one piece of carpet.
  • With a marker, draw a line on the floor using the edge of the remaining carpet as a guide.
  • Fold back both pieces of carpet and apply KangaTape®, centering the tape over the line.


Don’t remove protective cover yet.

  • Replace the carpet over the tape, making sure the seam is centered over the tape and butted tightly together. Match patterns as needed.
  • Remove the protective tape cover.
    • At the start of the seam, lift an edge of the carpet and begin to remove the protective cover from the tape.
    • Let the carpet fall back into place, allowing the protective cover to come up between the two pieces of carpet.
    • Slowly pull protective cover through the seam.
    • Smooth the seam onto the tape as you go.
  • Make sure the seam is adhered to the tape by walking down the seam.
  • It is recommended to apply a latex seam sealer to the seam at this time. (Follow manufacturer’s instructions).
  • Continue with your carpet installation.



  • Use cuts taken from the same carpet roll and/or dye lot if possible.
  • Do not use factory edges for seams.
  • Allow for extra carpet if matching a pattern.
  • Run seams lengthwise or parallel to traffic patterns.
  • If possible plan major seams so that natural sunlight does not shine directly across the seam.
  • If possible avoid seams, which intersect perpendicular to doorways and entrances.