What size of loft does it fit?
TeleBeam has been developed primarily for the conversion of fink pattern roof trusses at nominal 600mm centres with a maximum clear span from 6.2m to 8.4m (depending upon which system is used, i.e. TeleBeam 6.2 has a clear span of 6.2m) between external walls with normal interlocking concrete tiles or slate loading. DOWNLOAD MORE DETAILS (pdf) (opens a separate window).
Tackling a loft conversion requires considerable building competence - if you are in any doubt you should not tackle it without the help and advice of a suitably qualified builder.