In most cases, patios do not require rebar or reinforcement. Rebar is typically only used in concrete slabs that will experience heavy loads, such as driveways or sidewalks. Patios are typically used for foot traffic and light furniture, so they do not need the same level of reinforcement. However, if you are planning on installing a patio that will be used for heavy loads, such as a patio table and chairs or a hot tub, then you may want to consider adding rebar to the concrete slab.
