Floor Joist Span Tables for Surveyors - Floor Construction | Right Survey
Strengthening Loft floor | DIYnot Forums
How should I add new joists and flooring to a loft space? - Home Improvement Stack Exchange
Loft conversions in the United Kingdom - Wikipedia
5-things-consider-attic-conversion-in-your-home
Loft Conversion Guide — in depth information on how to successfully tackle a loft conversion — Harvey Norman Architects - Cambridge - Bishops Stortford - Saffron Walden - residential - Cambridgeshire - architect
Help with new loft project and loft conversion | DIYnot Forums