We just got deck built from a non-licensed contractor. The decking material is solid wood composite by Veranda. The contractor did a great job except that he did not leave enough space for the decking board to expand. Manufacturer suggests that their should be at least 3/16 gap between two boards. The contractor has used hidden fasteners. He is saying that there is no way he can fix that. Is there any way we can trim the decking boards without removing them. Can we use small circular saw while protecting the two board with some kind of a metal sheet and do the edges with a zig saw? Thanks for your help. Miva

This message has been edited. Last edited by: miva,

I see no way to just "fix it" as your cutting through your going to hit the fastners holding the deck boards in place.
Any hidden fastners systems I've seen were made so there was a small gap. Most composit boards I've work with expand along there length not in width.