Barn-style frame - £220 per square metre option
To keep the costs down a hybrid approach is sometimes used. In this option, conventional methods would be used to roof level, with green oak roof trusses giving an ‘open-to-rafters’ vaulted space. The £220 per square metre option would cover all the primary structure needed for other contractors to supply and fit softwood common rafters and the remaining roof and ceiling elements. In this option, the extra structural support needed in the walls may increase costs elsewhere. In the next option we will consider a self-supporting frame for the same building.