Hello,
For 14 years, I've had a deck with an adjoining patio with laid stones (40x40). I've wanted to expand the deck to have more pleasant decking and less weed maintenance.
Now it's finally time to lay new decking on the existing deck, and I've decided to finally extend it!
As the holiday is too short to lift the stones and do everything "by the book," I thought I would simply build on top of the stones.
Since I didn't build the deck initially, I have no idea what it looks like under the decking, but I assume it's a standard 45x145 framework.
My idea is that if the existing framework is okay, I will simply place a new framework on the stone slabs and lay new decking.
On the new part of the deck, the plan is to build a pergola while I'm at it with all the tools.
However, there are some concerns.
The slabs seem to be higher than the lower part of the framework, as I intend not to have height differences on the deck.
I might get lucky and the framework is much thicker than I think (45x145) and can thus be "thinner" to match the same height.
I've also thought about moisture, if the beams are placed on top of the stones, the contact surface could be exposed to moisture over time;, although I've heard that it is used when you have individual slabs.
The pergola, I thought of attaching the "roof" framework to the facade and then having legs at the other end. From what I understand, there is a similar dilemma with moisture; how do you solve this?
Edit:
Since I don't want floating seams, I've decided on a fris that makes the lengths the same. How should I adjust the framework for this?
