Spitalfields City Farm – Floor joists Posted on September 16, 2016 by Adrian The floor joist for the farm shop have now been milled during Treefest at Westonbirt Arboretum. All milled out of one large Douglas Fir. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Pinterest (Opens in new window)