Plan-it UPVC & Building Supplies are able to offer a fully comprehensive design and supply service to accommodate your Engineered Floor requirements. We are able to offer two flooring systems, Posi Joists (metal web) and I-beams, both have many advantages over using traditional timber joists. Please see below the benefits of each system.
We offer free Site Survey once quotation has been approved which means that we accept the responsibility for confirmation of the roof truss dimensions at no additional cost to you.
We are able to offer a nationwide coverage on Engineered Floors so no matter where you are we have you covered.

The benefits of using Posi Joists are –

  • Factory manufactured, made to measure.
  • Long continuous spans, reducing or eliminating the need for intermediate support walls.
  • Light and easy to handle.
  • Increased spacing centres.
  • Dimensional stability.
  • Design accuracy through specialist software.
  • Trimmable ends to facilitate installation where bearing support is inconsistent.
  • Wide nailing surface making the nailing and gluing of decking quicker and more accurate.
  • Improved floor performance.
  • Stiffness and strength built into the floors improving floor rigidity.

The benefits of using I-beams are –

  • Superior strength to weight ratio enables longer spans.
  • Straighter and more consistent performance.
  • Lighter and easier to handle with eased edges.
  • Lengths up to 12m.
  • Eliminates squeaky floors when fitted correctly.
  • Stable composition resists shrinkage and warping.
  • Cost effective saving on time, labour and materials.
  • No mid-span noggins required.
  • Convenient easy to cut, drill and install using conventional woodworking tools.
  • Versatile – Design flexibility in floor, wall and roof applications.
  • Performance is controllable.
  • Environmentally Friendly – Using 40–60% less material and less site wastage.
  • Quality Assured – An engineered system which is factory produced.

In addition to the structural items which we include with the I-Joist pack, flooring grade chipboard can also be supplied to complete the package. Egger’s WEYROC® Protect flooring system is an ideal partner to I-Joist floors to create safe working platform floors and temporary protection from the elements during construction. Egger have produced a BBA approved ‘rapid deck floor laying system’ using Egger D4 Adhesive which is designed to reduce installation times and minimise squeaky floors.

Rapid Deck Floor System Brochure


The Rapid Deck Floor Laying System involves bonding EggER Protect board to the joists and into the tongue and groove of the board using EggER D4 Adhesive.

Steico Joists Brochure


Made from slow grown spruce, the flanges are kiln dried and machine stress graded thereby guaranteeing a consistant quality and defined mechanical properties.