Distribution of plastic sheeting is one of the most common parts of emergency shelter provision. Providing poles with plastic sheeting (sect. 8.4.1) can significantly reduce local environmental damage from many people cutting larger trees to create frames. Providing rope, nails, and other fastenings will help people to fix their sheeting more firmly, extending its use and durability. People may use basic materials to make structures to which they are more accustomed. Metal sheets are a more costly alternative to plastic sheeting and require more skill to use, but are more durable.