6. Finishing the deck

How to create beautiful edges for your composite decking? Rail step is used to create professionally looking, precise deck edges. With cover strip even curved edges can be designed. And end caps can be easily clicked into UPM ProFi Deck 150 boards even years after having the whole decking installed. All edgings are available in colours that match the deck boards.


6.1 Cover strip enables curved edges

Matching colour Cover Strips are available for finishing the sides of all UPM ProFi deck boards. Being flexible, they can be installed around curved deck surfaces. The Cover Strip is attached by screws into the frame. The spacing between the screws must not exceed 300 mm. A 3 mm gap should be left at the ends of cover strips to allow for expansion if they are installed at a temperature below 20 °C.

  • Flexible profile enabling straight or curved edges
  • Matches all UPM ProFi Deck 150, Piazza and Terra 127 colours

6.2 With rail steps edges can be created quickly and easily

UPM ProFi Rail Step, the patented 3-in-1 solution, is designed for creating elegant and hard-wearing terrace edges, pool borders, and stylish steps. It's designed for UPM ProFi Deck 150, and available in all the deck colours.

For terrace edging, you can choose either T-Clips or Alu Rail for fixing the boards.

For a robust and professional finish, UPM ProFi Rail Step is available in matching colours for the Deck 150 system. A double support rail / joist is required at the end of the deck to support both the rail step and the deck board ends. Start Clips should be screwed into the edge of the frame at 60 cm spacing and the correct height to fit the Rail Step tongue. T-Clip large can be used to fix both the other edge of the Rail Step and the end of the deck boards. Remember also one direct fixing screw through the bottom tongue in the middle of the Rail Step.


6.3 Rubber strip for creating closed surfaces

To create a closed deck surface and avoid leaves and other materials falling through the deck board gaps, a yacht deck like look can be achieved with UPM ProFi Rubber Strip. Press the rubber strip into the gap between the deck edges with a roller. To prevent shrinking, do not pull/stretch the rubber strip, and leave the end slightly longer than required. After several days the ends can be trimmed to length. Rubber strip should not be used in the joints where deck board ends meet, and additional ventilation points are required when using rubber strip. (See section 2).
Please note that the use of alu rail and/or rubber strip does not create a water proof deck surface.

  • Provides a typical yacht deck look
  • Prevents dirt from falling between the deck boards
  • Increases surface friction

6.4 End caps give final touch to your decking

UPM ProFi End Caps with patented locking teeth can be also used to finish a deck made with Deck 150. They are available in matching colours and fit both the deck boards and the Rail Step. If alu rail has been used in place of clips, and end caps are to be used, the alu rail always must be cut 10 mm shorter than the deck board length.

  • Simple alternative to cover strip and rail step edging
  • Elegant solution for keeping small animals and dirt out of hollow chambers
  • Patented locking system to ensure the end cap remains fixed for the life of the deck
  • Made with the same advanced composite material as the deck boards ensuring similar uv resistance and weathering
  • In-built ventilation feature allowing condensation/water to drain
  • For UPM ProFi Deck 150 deck boards and for rail step
  • Available in 6 colours

Deck boards can be used for deck edging

UPM ProFi Piazza boards can be cut lengthwise for use as fascia cover boards to enclose the substructure.

The spacing between the screws should not exceed 300 mm. Allow a minimum 20 mm gap between the fascia and any vertical walls or the ground for drainage.