Sonoma Arched Wood Pergola 16x16 Redwood The 16x16 Sonoma Pergola Kit in Redwood adds charm to any backyard. Relax under it each summer to escape the heat. Pergolas on sale today. 16x16 Sonoma Pergola Kit SONOMA 16-R | Outdoor GreatRoom Sonoma 16-R Options like side wall panel, roof lattice, and post bases are all sold separately and not included at this price. Optional lattice roof, wall, and post bases sold separately.