Posi-Joists
Melingoed Posi-Joists combine the advantages of open-web floor design with the strength of Posi-Strut steel webs.
The Posi-joist system offers unequalled design versatility in a wide range of applications. They can be used to design floor systems and as Posi-Rafters, create flat and pitched roofs. Posi-attics replace the traditional solid floor joist, incorporating a posi-joists instead!
Posi-Joist specifications
Posi-Joists are parallel chord trusses manufactured from strength graded TR26 timber and MiTeK patented Posi-Strut webs. Our floor package provides a total flooring solution, offering all the ancillary items needed to complete installation.
Posi-joists can be specified in a wide range of widths and depths:
Single joists are designed in widths 72, 97, 122 and 147mm. multi-ply or two-ply joists can be specified for additional strength.
| Web type | Clearance between flanges | Standard Depth |
|---|---|---|
| PS8 | 108mm | 202mm |
| PS9 | 131mm | 225mm |
| PS10+ | 159mm | 253mm |
| PS12 | 210mm | 304mm |
| PS14 | 279mm | 373mm |
| PS16 | 327mm | 421mm |
Features & Benefits
Economy -
- Span greater distances – Longer spans are achievable in comparison with solid timber joists.
- Open web design - Fast and simple installation of services, without needing drilling or notching.
- Reduced installation time – lower labour costs.
Performance -
- Wide nailing surface – floor and ceiling installation is simpler and quicker.
- Acoustic and fire performance standards – benefits party floor construction.
- Preservative treatment – Joist timber can be pressure treated.
Efficiency -
- Increased joist spacing – Strength of the metal web system can allow for fewer joists.
- Reducing site wastage – Bespoke design eliminates the need for site alterations.
- Engineered and manufacture off-site – Ensures constant quality and reliability.
Flexibility -
- Design flexibility – Enormous number of specifications offering clearly defined performance.
- Light weight – Joists are manoeuvred easily and safely on site.
- Flexible end detail - Options for a variety of support conditions.
