10 ft.Pergola Garden Bed (12 feet) 12 feet Post Size: 4.5 x 4.5 in. 25.2 in. H x 110 in. W X 15 in. D (95 lbs.) Assembly Difficulty: Low An easy to assemble planter box that fits between the posts of your 10 x 10 or 12 x 12 pergola, helping to differentiate spaces. Your pergola planter makes it simple to add beautiful garden elements to any patio. Add plants to attract butterflies, detract mosquitos, create privacy, add color, or easily grow vegetables close at hand. The Pergola Planters come in 2 sizes: to fit 10 x 10 pergolas (110 in) or 12 x 12 pergolas (134 in). The planter is also maintenance free and features a 20 year warr