Metsec Lattice Beams

Metsec Lattice Beams Ltd is the UK’s largest manufacturer of lightweight steel lattice beams joists and trusses, including parallel, pitched, tapered and curved designs with spans of up to 40m.


Long Span Lattice Beams Tapered Lattice Beam Truss Curved Lattice Truss Lattice Beam Mezzanine Floor System Over Roof Lattice Truss System

Long Span Lattice Beams

Lightweight and easy to handle, they offer ideal structural support with optimum strength to weight ratio. The open web configuration of the steel beam or steel truss allows for the easy passage of services, whilst an optional timber insert lying flush with the top and bottom chords can provide for the simple fixing of roof, floor and ceiling coverings.

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Steel Lattice Beam Product Range

Floor Beams
Roof Beams
Curved Roof Beams
Ceiling & Service Support
  • Traditional Floor Beam Systems

    Lattice Beam Floor Joist

    Traditional floor beam systems - suitable for use as joists in all types of flooring including timber, pre-cast concrete slabs or profiled metal decking with in-situ poured concrete.

    Beam Design Service

    Mezzanine Floor Beam Systems

    Lattice Beam Mezzanine Floor System

    Mezzanine Floor Beams - large column free spans can be easily achieved with the use of long span lattice steel beams and secondary C sections, offering clients present and future maximum floor layout flexibility.

    Beam Design Service

    Composite Floor Beams

    Lattice Beam Composite Floor System

    Composite Floor Beams - purpose designed composite steel beams with quality controlled factory applied intumescent fire protection and pre-welded shear connector plates ensuring guaranteed composite action. The standard open web configuration of the lattice steel beam provides unprecedented flexibility for the routing of M & E services, including the ability to cross over services within the depth of the steel beam.

    Beam Design Service

  • Parallel Steel Roof Beams

    Parallel Steel Roof Beams

    Parallel Steel Roof Beams - suitable for use with flat roofs or sloping roofs where the lattice roof beams can be laid to falls. The steel beams can also be used as long span lattice purlins and are suitable for use with most external finishes from lightweight metal sheeting through to heavier constructions with tiles on battens or decking.

    Beam Design Service

    Pitched Steel Truss

    Pitched Steel Truss

    Pitched roof trusses are suitable for all types of duo-pitch roof construction and can be used with most external finishes from lightweight sheeting through to heavier tiled roof construction.

    Beam Design Service

    Tapered Steel Truss

    Tapered Steel Truss

    Tapered roof trusses are suitable for all types of mono-pitch roof construction and can be used with most external finishes from lightweight sheeting through to heavier tiled roof construction.

    Beam Design Service

    Inverted Steel Truss

    Inverted Steel Truss

    Inverted roof trussesare generally used on low pitched roofing with timber or metal decking and built finishes. When used inconjunction with Z purlins the design of deep valley gutters can be simplified.

    Beam Design Service

    Parallel Pitched Steel Beam

    Parallel Pitched Steel Beam

    Parallel pitched roof beams are suitable for all types of duo-pitch roof construction providing extra headroom over that afforded by the pitched roof truss. The steel beams can be used with most external finishes from lightweight sheeting through to heavier tiled roof construction.

    Beam Design Service

  • Curved Steel Truss

    Curved Steel Truss

    Curved roof trusses can provide an aesthetically enhanced roof profile. When used with a standing seam roof this type of roof is easy to detail and install giving a low maintenance roof.

    Beam Design Service

    Curved Steel Beam

    Curved Steel Beams

    Curved roof beams can provide an aesthetically enhanced roof profile providing extra headroom over that afforded by the curved steel truss. When used with a standing seam roof this type of roof is easy to detail and install giving a low maintenance roof.

    Beam Design Service

    Double Curved Steel Truss

    Double Curved Steel Truss

    Double curved roof trusses provide an ideal solution for the designer working with modern multi curved roof truss structures. When used in conjunction with SFS wall framing systems a very lightweight structure can be provided making them ideal for both standalone structures and pent house type structures built on top of existing buildings.

    Beam Design Service

    Inverted Curved Steel Truss

    Inverted Curved Steel Truss

    Inverted Curved Steel Trusses offer designers a simple solution when specifying a single curve roof truss structure. This can be used to enhance the appearance of roof structures and is frequently specified with standing seam roofing to create a smooth appearance.

    Beam Design Service

  • Ceiling and Service Support Beams

    Ceiling and Service Support Beams

    Ceiling and Service Support Beams – ideal for clean rooms, data centres and retail units where long unobstructed spans are essential and where the lightweight lattice steel beam can minimise the load on to the existing structure.

    Beam Design Service


Steel Lattice Beam Support Service

Our extensive technical support includes a design and detailing service, with layout and fixing detail drawings, plus full calculations for Building Regulations submission. Alternatively, LatticeSPEC software, with links to the latest wind code, BS6399-2: 1997 and BREVe database for topography, helps architects and engineers carry out their conceptual lattice roof beam, floor beam or roof truss designs quickly and easily.

Our steel beams and steel trusses were first introduced in the 1950’s and their inherent advantages quickly established the lattice beam product as the first choice for structurally sound cost effective construction.

All of our lattice steel beam designs give optimal levels of structural performance in roof, floor, or any other application where lightweight and long span performance is important.