Because there was not enough room above the patio door to attached this pergola, we designed and constructed a free-standing pergola. The pergola was supported by 4-6×6 posts that were on poured to grade footings that were 42" deep. The 6×6′s were covered in white vinyl sleeves. The rafters and purlins were closely spaced to maximize the amount of shade. Hanging baskets were being purchased as we were finishing the pergola.