decking over unlevel concrete slab

Building decking over uneven patio slabs to create a sunny sitting area. Constructed by Tony Petford.

A basic wooden-framed, raised floor installed on sleepers is insulated against the colder concrete. Plywood sheathing provides a substrate for flooring. Those who have some carpentry experience and tools can install a false floor over a basement slab with the help of one or more assistants. The job starts by clearing the 

are often cracked, uneven or just plain unsightly. Stable, weather- resistant redwood can cover all these defects beautifully. There are two basic steps in Deck Over Concrete construction: attach. Construction Heart or Deck Heart redwood 2x4 sleepers to the concrete slab; and nail 2x4 or 2x6 Construction 

You can avoid the cost and mess of tearing it out by just screwing down wood sleepers and decking over it. Badly damaged slab. A concrete slab in this condition has to be either broken up and carted away or decked over. This was the ultimate bad patio: severely . Some become uneven as one side of the crack sinks.

Typically, this soil does not get compacted well enough and over time, it settles and erodes away. The soil becomes Uneven concrete. Typically, settled pool decks will become unlevel at the joints between slabs. This creates a tripping hazard and can be very dangerous, especially for children. Cracks.

This Old House general contractor Tom Silva shows how to resurface an uneven concrete slab.

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