These numbers are very low, for at least my region. Paver patios run about $20.00+ per square foot, higher for upper end pavers. That's patio install only, not including lawn repair, pergolas, columns, seat walls, lights, walls, steps etc... So figuring a flat yard and being able access with machinery. If by hand price goes up.
Aerobic exercise (also known as cardio) is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process.
a step with 2 risers. Step aerobics is a form of aerobic exercise using of an elevated platform (the step). The height can be tailored to individual needs by inserting risers under the step. Step aerobics classes are offered at many gyms and fitness centers which have a group exercise program.