Today, armed with our new version of the spreadsheet that now calculates everything from the basis of the measured bottom flange, we proceeded to bring in 15 lengths of 89mm CLS timber plus 11 lengths of the 63mm CLS timber. The first job was to cut the scarf joints in 12 of our 89mm CLS lengths and cut various pieces off another two lengths which are the extension bits to add to the scarf joints. These were glued and screwed together and left to set overnight. Oh yes, the other ends of these pieces had the bird’s mouth cut into them plus the angled slice off the end too.
Next the heap of the 63mm CLS were also cut with the angled ends (still 32 degrees) and then turned around to then cut a precise length off of each one in turn according to our spreadsheet. These all form 11 rafters, 8 for the “M” wall, 1 for the “I” wall and 2 for the “E” wall. These are known measured lengths so we can assemble these ones and get them installed.
Next-set-of-Rafter-Parts-1
Next-set-of-Rafter-Parts-2
Tomorrow, we will bring in 50 strips of our 400mm wide plywood strips from off the storage stack outside and cut the angled slices off the ends as usual and also cut the special shaped slots for the clearance of the steel I-Beam and for the wall and top-plate too. It was fiddly but we got there today and hopefully tomorrow we can start assembling complete rafters and get them ready for some to go up on Friday.