Mild Steel Expanded Mesh adds strength to brickwork and also prevents cracking. It can also be used to strengthen window openings and walls. Adds strength to brickwork and also prevents cracking. It can also be used to strengthen window openings and walls.. Just The Job for reinforcing brickwork. Expendable metal mesh is produced from one single sheet, so nothing can come loose. This is why it is ideal for forming and model making. Ideal for art and craft hobby projects. Ideal for Ceiling Decoration, Grill, Fence and many more�