Pergolas are decorative architectural features which can be attached to your house or other outdoor structure, or erected freestanding with pillars. Pergolas offer shade and when attached to your home, keep your home even cooler especially in hot weather. You can custom design your pergola to suit your garden décor and a pergola, regardless of the design, will add a creative design to any yard. You can also add garden gates, trellises and garden benches to make your pergola design truly unique. You may have to check with your municipal building officials regarding permits for erecting either a freestanding or attached pergola. A 10 x 10-foot projection vinyl pergola which will take about a weekend to erect will start at about $1,400.