Select options This product has multiple variants. The options may be chosen on the product page Free Standing Carports Carports Single & Double Genuine Colorbond Steel Single & Double Roofing Carports. Fully engineered. Available Sizes: 6.125m x 3.100m Single Carport 6.125m x 6.15m Double Carport Posts into ground standard. Flange post onto ground extra $100.00 per post.