Our timberframe cabin part VII: Tulip Poplar Post скачать в хорошем качестве

Our timberframe cabin part VII: Tulip Poplar Post

Just a quick look at what goes into making one of the six primary posts for our small house. This post is 8x8 Tulip Poplar, it has a 2” stub tenon at its base, a long through tenon which will pass though the top plate and be wedged, and is joined to the other posts in our frame by 4x4 girts and an 8X10 tie beam. The girts are joined with through stub tenons and receive a 1” housing, the tie beam joins with a haunched and wedged though tenon resting on a 1” diminished bearing shoulder. Layout is done by the Line Rule method which has been a great help to our accuracy. As Tulip Poplar tends to have very large drying checks, after all the joints are cut the timber is kerfed on one outer face down to its heart, this helps to localize any checking within the kerf leaving a clear timber viewed from within the house. This method comes from Japan and can be searched under the name Sewari. All end grain is coated in pine tar/oil mix and later crisco to slow the drying of these areas.