Plaster Walls & Plaster Work Cost Guide in 2021 | EarlyExperts
On a per square foot basis, new plastering will set you back between $2 and $10 per square foot. The cost is subject to the complexity of the task and finishes required. As for the price according to room size, a small room will set you back around $720, a medium place $880, and a large room about $1260.