You can do your pergola yourself according to the size and model you need. For this you can choose carpets which are in vines, cloths or reeds according to the need and taste for the supporting columns and upper part. You can choose wood, metal and stone for the supporting columns. For the stone you can find ready made concrete and gardens and materials made for open spaces like the ancient columns. If you do not want to iron, then you can cover them with plaster or different materials to get a different shape. Make your pergola the most used living area of summer.