A customer (good friend) has requested a raised patio constructed of SRW, then concrete poured within, flush to the top of the wall. The customer will handle the pour, I will be responsible for constructing the wall to contain it. At the furthest point, the wall (patio) will only be approximately 16" high. My idea is to add a pedestal style, continuous step along the wall's curvature at highest point. My immediate question is which wall system would you guys recommend for this application? Let me backup first and ask if this is even possible since the wall will need to act as a form for the pour? Where the wall is 16" high, I will be adding, leveling and compacting base material up until the final 4 inches remain, for the concrete.