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Solid Timber
The Solid Timber joist is the traditional ceiling joist
used and typically is only found in domestic dwellings
already constructed. They are widely used within
internal floor and separating constructions for both
residential and commercial applications.
Please refer to the Structural Timber Association website to see which
of our downlights are suitable for installation in REI30-compliant floor
constructions.
30 minute construction
60 minute construction
90 minute construction
600mm Joist Centres
220mm x 63mm
15mm Type A Wallboard Plasterboard
600mm Joist Centres
220mm x 63mm
2 x 15mm Type F Fireline Plasterboard
450mm Joist Centres
220mm x 63mm
2 x 15mm Type F Fireline Plasterboard
I-Joist
I-Joists are used on new builds throughout the UK and is
a lightweight joist designed for domestic applications.
I-Joist now dominate the housebuilding market and
continue to grow in popularity as they have a greater
strength to weight ratio compared other options.
30 minute construction
60 minute construction
90 minute construction
600mm Joist Centres
220mm x 63mm – 9mm OSB/3 ‘web’
15mm Type A Wallboard Plasterboard
600mm Joist Centres
220mm x 63mm – 9mm OSB/3 ‘web’
2 x 15mm Type F Fireline Plasterboard
450mm Joist Centres
220mm x 63mm – 9mm OSB/3 ‘web’
2 x 15mm Type F Fireline Plasterboard
Metal Web / Open Web
/ Posi Joist
Metal Web or Posi Joist as it is sometimes called, is a new
joist type used in the UK. Posi Joist combines the lightness of
timber with the strength of the Posi Strut steel web allowing
you to span far greater distances. This joist type can be used
across a wide range of applications for both floor and roof in
domestic, industrial and commercial applications.
30 minute construction
60 minute construction
600mm Joist Centres
PS9 (225mmx 0.9mm)+ TR26 (47x72mm timber)
15mm Type A Wallboard Plasterboard
600mm Joist Centres
PS10 (253mm x 0.9mm)+ TR26 (47x72mm timber)
2 x 15mm Type F Fireline Plasterboard
Warrington: +44 (0) 1942 433333 | Belfast: +44 (0) 2890 773750
Downlights
