More likely than not, the joinery in the roof system of a timber frame is often loaded with tension and so special consideration is needed to make sure everything is held together. In this detail we show a collar tie to rafter connection in two ways. The first, and often preferred, method used by engineers employs pieces of all thread and extra large […]
When two roofs collide in timber frame construction you have the chance to add a really cool element to your frame, compound joinery. In this detail we show a jack rafter joining with a valley. The rafter is housed into the valley one inch and is secured with a 10″ structural screw. Click Images for […]
Just like last month’s detail this one relies on a conventionally framed wall to support a timber frame rafter, it can also be used to rest a beam on as well. To create the timber frame rafter wall pocket, you nail or screw 2x material together to create a “stud post” that transfers the weight to […]
This rafter to post with tenon connection is a popular way to join a timber frame rafter to a post and is easy to cut and assemble. The rafter has a tenon which is fully housed by at least an inch into the mortise in the post, and is secured with a couple of 1” pegs. The […]
Often folks want to add a bit of style to their roof line by adding another roof pitch to the equation, called a witches hat roof, it incorporates a witches hat rafter (also called a broke back rafter) to achieve this look. This example uses an LVL spline and some pegs to hold the two rafters together. Then a couple of […]
Using a ledger, a post and plate system along with shed common rafters is a fast and effective way to construct an exterior porch or storage area. In this shed rafter detail the 4×8 rafters are housed into the upper ledger 3/4 inch and secured with an 8 inch structural screw. At the plate the […]
While non traditional, this king post with steel all thread uses metal and a stub tenon to tie everything together and allows faster cutting, fit up and assembly. This has become more and more common as the number one way to handle this joinery situation. It also minimizes the amount of wood that is taken out of the king […]
There are a few ways to join two rafters together at the peak, one way that we have illustrated before is the tongue and fork connection. In this detail a simple rafter to rafter mortise and tenon connection is used to simplify the process of cutting the joint. Please note that the tenon and mortise […]
This rafter to tie beam connection, strong and simple to cut, joins a rafter to a tie beam in a wide variety of truss combinations. The notch is what creates the strength in this connection. It uses the roof pitch on the inside edge and a 45 degree angle on the outside of the notch.
In a hexagonal timber frame where the plates around the perimeter join the with principal rafter is a bit tricky from a engineering stand point. This is just one solution and in this case a steel post was used instead of a timber post. After the last detail I thought a follow up to the […]
