Advice on lintels for 2 storey timber frame extension. What type of lintels do I require? Information, help and advice on many architecture, self build and design problems and issues

[davemac]

Hi, I am currently planning a 2 storey timber frame extension and I require some advice on lintels. What type of lintels do I require for above the windows (1800mm & 1200mm wide)? I have been told class C concrete ones, I presume that is for the external blockwork.

[thedoctor]

This will be stipulated on your building regulation plans.

[TheDoctor5]

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