B503 Mesh

B503 mesh is a welded steel reinforcement fabric used in concrete projects where this mesh type has been specified in the structural drawings, calculations or reinforcement schedule. South Steel supplies B503 mesh online for homeowners, self-builders, groundworkers, contractors and trade buyers.

It may be used in reinforced concrete slabs, walls, floors and other structural elements, depending on the project design. Customers can check the product specification, select the quantity required and place an order online.

Order B503 Mesh Online

If your project specifies B503 mesh, check the available sheet dimensions and delivery details before selecting the quantity required.

South Steel supplies reinforcement mesh for domestic, self-build and trade projects, with support available for larger orders and drawing-based quotation enquiries.

For structural or load-bearing concrete work, always follow the engineer’s drawings or calculations for the required mesh type, sheet size, overlap, placement and concrete cover.

B503 Mesh Size and Specification

B503 is a rectangular reinforcement fabric designed to provide more steel in one direction than the other. Its key details are:

• Main wire diameter: 8mm
• Cross wire diameter: 8mm
• Main wire spacing: 100mm centres
• Cross wire spacing: 200mm centres
• Main steel area: 503mm² per metre

The “503” identifies the nominal cross-sectional area of steel provided per metre in the main direction. This reference helps customers match the product to the description shown on drawings, material lists and reinforcement schedules.

This mesh should not be confused with square reinforcement fabric, which provides the same reinforcement in both directions. Do not select a substitute based only on wire diameter. Order the exact product reference stated by the engineer or project professional.

Reinforcement and Structural Steel From South Steel

South Steel is a UK online steel supplier offering reinforcement products, structural sections, accessories, fabrication and drawing-based quotation support.

Browse the wider reinforcing mesh range to compare other specifications, or visit the reinforcement steel category for rebar, cut and bent reinforcement and construction products.

Projects requiring beams, columns, channels, angles, hollow sections or flat bars can also be sourced through South Steel’s structural steel range.

For help with product information, larger orders or a drawing-based quotation, contact the South Steel team.