Reinforcement Steel Mesh

Galvanised reinforcement mesh for concrete and masonry strength

Reinforcement mesh is essential for stabilising concrete and masonry structures, offering enhanced tensile strength, durability, and crack resistance. The range available at MGN Builders Merchants includes galvanised masonry reinforcement mesh in three sizes, 63mm, 112mm, and 175mm, as well as expanded metal lath mesh. Each mesh format plays a key role in improving load distribution and extending the lifespan of blockwork, brickwork, and plastered surfaces. Galvanised finishes add extra resistance against corrosion, making them suitable for internal and external use alike. mgnbm.co.uk recommends these mesh options for both structural and non-structural applications, ensuring flexibility across different wall types and construction stages.

Steel reinforcement mesh designed for masonry wall stability

Steel reinforcement mesh is designed to counteract tensile forces in masonry construction. It’s embedded into horizontal mortar joints to help reduce cracking from movement, settlement, or thermal expansion. For those wondering what is masonry reinforcement mesh, it refers to narrow, roll-format galvanised mesh that’s applied during blockwork or brickwork to give lateral strength. mgnbm.co.uk suggests using 63mm mesh for standard residential walls, while 112mm and 175mm options are ideal for wider cavity walls or higher-load applications. These sizes make it easier for builders to select the right width based on wall thickness, reducing waste and improving build efficiency.

Expanded metal lath for render support and plaster keying

Expanded metal lath mesh is a thin steel sheet that has been slit and stretched into a diamond pattern. It’s used to create a strong mechanical key for render or plaster to bond onto. The secret to using lath or mesh for masonry reinforcement is knowing where to put them. Before applying render or plaster, expanded lath is fixed onto substrates such as wood, insulation, or old brickwork, while reinforcement mesh is embedded in mortar. According to mgnbm.co.uk, the 2400 x 700mm lath sheet offers excellent surface coverage and strength, making it ideal for supporting wet finishes in both interior and exterior settings.

How to choose the right reinforcement mesh for your project

When deciding which mesh to use, start with your wall type and purpose. Use 63mm galvanised masonry mesh for small cavity walls, 112mm for standard blockwork, and 175mm for structural or multi-storey walls. If you’re working on a render or plaster system, the expanded metal lath is the go-to option. Some may ask what is the strongest steel reinforcement mesh, the answer lies in both mesh gauge and format. For masonry walls, wider meshes like the 175mm version provide broader coverage and greater tensile reinforcement, while metal lath sheets are stronger in face bonding.

MGN Builders Merchants advises always installing mesh in accordance with your structural engineer’s recommendation and overlapping rolls by a minimum of 150mm to maintain strength continuity. Fixings should be corrosion-resistant and spaced evenly for maximum reinforcement performance.