First laying deck boards on top of the existing patio without any joists to secure it from below will be free to move twist or just feel bouncy as you walk on it.
Build a low deck over concrete patio.
If the damage to your concrete patio appears too far gone consult with a local trexpro.
One is to demolish your concrete patio completely and then build a wooden one as the replacement of concrete base.
Thick pvc trim 3 16 x 3 1 4 in.
Check the drainage of the concrete patio.
Evaluate the concrete s condition.
How to build a wood deck over a concrete patio step 1.
Or you can use the slab as the base of the deck and use wood as the top of this deck.
Plan the layout of your sleepers.
You can build a raised deck over concrete base in two ways.
How to build a deck over an existing patio slab with low clearance.
Cracks and craters with minimal growth may still be covered without issue but be cautious if an area of your patio sinks year after year.
Now you are ready to deck over the low deck joist system as you would on any deck.
Building on top of the concrete slab patio is not a good idea for a few reasons.
Lay the joists across the concrete perpendicular to the house wall at 16 inches on center.
Layout the deck.
They will run perpendicular to the decking material.