High-strength Expanded Metal Lath For Stucco And Plaster Systems

High-Strength Expanded Metal Lath for Stucco and Plaster Systems

Expanded Metal Lath is a versatile and durable base material designed to provide excellent mechanical keying and reinforcement for stucco, plaster, and cement applications. Manufactured from high-quality galvanized steel sheets, it is slit and expanded into a diamond mesh pattern that ensures superior strength, uniform plaster bonding, and crack resistance.

This heavy-duty lath offers reliable adhesion for both interior and exterior wall systems, ceilings, and soffits. Its open mesh structure allows plaster to fully penetrate and lock into the lath, forming a strong mechanical bond with the substrate — ideal for achieving smooth, long-lasting finishes on concrete, masonry, or wood surfaces.

Features & Benefits

• High Strength: Reinforced structure provides superior support for thick plaster or cement coatings.

• Excellent Keying: Diamond mesh design ensures even plaster bonding and prevents delamination.

• Corrosion Resistance: Hot-dip galvanized coating (G60/G90) protects against rust and moisture.

• Easy Installation: Lightweight, flexible, and simple to cut or shape on-site.

• Versatile Application: Suitable for flat, curved, or irregular wall and ceiling surfaces.

Technical Specifications

• Material: Hot-dip galvanized steel / stainless steel

• Mesh Type: Diamond expanded mesh

• Sheet Size: 27" × 96" (custom sizes available)

• Weight: 1.75 – 3.4 lb/yd²

• Coating: G60 / G90 zinc coating

• Standards: ASTM C847, ASTM A653

Applications

• Stucco and plaster base for walls and ceilings

• Fireproofing and sound insulation systems

• Renovation and restoration of masonry or wood structures

• Exterior wall insulation and cladding reinforcement

• Cement and gypsum plaster finishes