Open Web

Harlows has worked in conjunction with many house builders, providing solutions, through imaginative floor designs, to all areas of building design.  We offer a comprehensive service to the builder, architect or house designer. Harlows are able to offer the most cost effective solution, removing load bearing foundations from plans and making full use of the greater spanning capacity of the I Beams and Open Web Joists.

Harlows can offer in house design, manufacture and installation.  Please feel free to contact us to discuss your requirements.


Open Web Joists

  • Easy to work with, up to 40% lighter than traditional joists
  • Easier to install than solid joists, providing labour savings
  • Available in depths 202, 223, 254, 302, 373 & 421 mm
  • Manufacturing spans up to 12 metres
  • Provides savings on groundwork costs by eliminating load bearing walls
  • Open web design allows 100mm service pipes to pass through
  • Plumbing and electrical installation made easier with no drilling or notching of Joists
  • Trimmable ends up to 130mm
  • With Strong back bracing the need for herring bone strutting is eliminated
  • E-F-T3 Robust Detail compliant for timber frame construction
  • Compliant to part E of the Building Regulations
  • Environmentally friendly, full chain of custody