On 1/6/2021 11:29 AM, trader_4 wrote:
On Wednesday, January 6, 2021 at 11:26:18 AM UTC-5, wrote:
On Wed, 6 Jan 2021 14:45:02 +0000, Ethan Brown
wrote:

First time poster and not a builder. Just wondering if the below is possible:
I want to deck over our front porch (~1m x 4m).
The porch is currently tiled over a concrete slab.
I was thinking of laying joists over the top and then decking on top of that;
however, I was wondering if you can lay joists down so they arent as tall?
I understand that this will make the deck less stable in a normal circumstance,
but will this be the same as the concrete slab is already there?
If I have the joists standing upright then it will be too tall for our entry way.
Thoughts?

I wouldn't call them joists - more like levelling strips or spacers.
Why not synthetic decking directly on the tiles ?
John T.

Nowhere for water to drain? It accumulates, freezes? IDK, might work but I
think using some wood strips is safer.





Maybe a synthetic 2 x 4 is the best of both worlds. Won't rot and
allows air circulation.

Depending on the size, I'd consider building it in sections that can be
lifted for cleaning the gunk building up underneath.