FERREX ladder reinforcement: plan drawing with 400mm cross rod spacing and width W, laid in a block wall

Also listed as Block Reinforcement, Ladder Type

Widths
50 to 200 mm
Length
3000 mm
Wire
3, 4, 5 mm
Materials
Galvanised, stainless

Overview

Block reinforcement helps walls resist wind, withstand material loads against the wall, control shrinkage, thermal and settlement effects, and span openings. It is made to customer specifications so its strength is used efficiently.

Ladder mesh is supplied in continuous lengths and embedded in the horizontal mortar joints. The cross rods are spaced so block cells stay clear, allowing easy placement of vertical rebars.

ApplicationHorizontal mortar joints, especially where vertical rebars are placed in block cells.

  • Greatly reduces cracking from thermal stresses, which improves resistance to water penetration.
  • Increases lateral flexural strength.
  • Bonds exterior and interior wythes in composite or cavity walls, and masonry at intersecting walls and corners.
  • Improves the performance of masonry walls under various stresses.
  • Galvanised for internal use, stainless steel for external use.

Specifications

Ladder Reinforcement specifications
ReferenceWidth (mm)Length (mm)MaterialWire diameter (mm)
FLM 050503000Galvanised steel3/4/5
FLM 1001003000Galvanised steel3/4/5
FLM 1501503000Galvanised steel3/4/5
FLM 2002003000Galvanised steel3/4/5
FLM 050 S503000Stainless steel3/4/5
FLM 100 S1003000Stainless steel3/4/5
FLM 150 S1503000Stainless steel3/4/5
FLM 200 S2003000Stainless steel3/4/5

Other sizes available on request.

Source: Expanded Mesh & Metal Products catalogue, page 21 (PDF, opens in a new tab), Expanded Mesh & Metal Products catalogue, page 41 (PDF, opens in a new tab)

Materials and standards

Manufactured to
BS EN 845-3:2003, ASTM A951/A951M
Pre-galvanised wire
BS EN 10244-2:2001 (formerly BS 443), ASTM A641/A641M
Stainless steel wire
BS EN 10088-3:2005 (formerly BS 1554:1990), grades 304, 316, 316L; ASTM A580/A580M; ASTM A1022/A1022M

Standards are shown as listed in the FERREX catalogues. Request current test and compliance documents for your specification.

Downloads

Expanded Mesh & Metal Products

Ladder Reinforcement appears on page 21.

Enquire About Ladder Reinforcement

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