Alternative to concrete bases EuroCasetas He searched for years the most practical solution for the ideal base system. After considering all the options available for our clients, we have decided that PVC supports are the best solution. You will find our PVC supports in the accessories section of our website. These are some of the benefits of PVC supports: 1) Minimum time in installation 2) more economical, such as the concrete base. 3) It is possible to adjust the height 4) incredible strength (1 ton per support approx.) Our PVC supports are certified and are offered exclusively in EuroCasetas. These supports are adjustable in height and allow you to adjust the differences in height without the need for large-format works.