You are welcome to install our deck tiles on surfaces without clear 90-degree angles. However, to do so, you would need to cut the deck tiles. You can find detailed cutting instructions here: https://www.newtechwood.com/pdf/UltraShield-Deck-Tile-Installation.pdf and in the installation video: https://youtu.be/a1fpinb5fJs at 1:50 mark. Please note that removing the dove tail connectors would limit your ability to connect trim or fascia.