Stiller, I would only need about 50, and as the clean rooms are small with pipework, machinery, other obstacles I would have to cut them to various sizes. So I would need a number of end caps as well. let me know how much your looking for. thanks brandy.hello Brandy i have 500 x 4m plastic boards 400 of them never used. i might sell some of them if your interested , i may even sell the lot but the price would have to be right. Stiller