Suspended Timber Floors

Arguably the most sustainable way of constructing a domestic upper floor is by using timber or engineered timber as the structural support with a timber based decking surface. Jewson offers Chain of Custody timber, as well as a design service to help with complex floor layouts.

The most traditional way of constructing suspended timber floors is with solid timber joists. The more modern and far more sustainable product choice is either a metal-webjoist or I-joist. Both of these use significantly less timber and create less waste on site.


Timber %20Frame %20building %20structureMetal-webjoists (Posi-joistsTM) bine the light weight of timber with the strength of steel web. The Posi-joistTM allows building designers the freedom to have a variety of internal room layouts without the constraints of solid and other engineered timber joists.

I-joists, also known as I-beams, are beams with an 'I' or 'H' shaped cross-section. The horizontal elements are called flanges. The vertical element is called the web, manufactured to a precise specification using a high grade softwood flange bonded to an OSB web.

Safer, cleaner, quieter

It's becoming more common to use film-covered floor sheets. These should be laid in accordance with the manufacturer's fixing instructions and provides a safe working platform during construction, prior to the roof being installed, for a period of up to 45 days. Glued, they reduce the chance of squeaky floor boards associated with shrinkage, settlement and loose nailing.

Suspended -Timber -Floors

Trade Tips

  • Cut down on waste and lifting on site with Posi-joists.
  • Flooring sheets provide a safer, cleaner, quieter environment.
  • Underfloor heating isn't just for downstairs.

Homeowner Benefits

  • Flooring sheets fixed with adhesive reduce squeaks.
  • Timber flooring systems are the environmental choice.
  • Alterations and refurbishments are easier with timber materials

Jewson has everything you'll need...

  • Products; Jewson offers a complete range of film-covered, moisture resistant flooring sheets, chipboard flooring and floorboards. We offer a bespoke design service for outstanding quality engineered Posi-joistsTMas well as 'I' and 'H' joists.
  • Design Service; Bring your plans into your local Jewson branch for a quick turnaround design and planning service.