Posted on: 8 July 2019Share
When you work in construction, you expect that when you order roofing trusses, they will arrive fully built and ready to use. What you do not expect is that you may get some broken trusses, which may delay your project and force you to extend the deadline on your project. However, that almost never happens, and even if it did happen to you, you could easily build a truss to replace any one truss that needed replacing. Here are four building truss designs that you and your crew can easily build onsite with a table saw or circular saw and some very sturdy 2-inch thick by 30-foot long boards.
The King Truss
The king truss is the most basic of all trusses. It is a triangle with a single support board dissecting the triangle right up the middle. A couple of angle cuts, shorter cuts on one or two longer boards, and a board to support the high point of the truss, plus a few three-inch carpenter's nails, and this truss is complete.
The Fink Truss
This is a low-lying triangle truss with spread-out "W" attached at key points inside the triangle of the truss. It requires a few extra cuts to create the four pieces that form the "W" support beams, but it is ideal for lower, heavier roofs. It takes about twenty to thirty extra minutes to make one of these trusses as opposed to a king truss.
The Queen Post Truss
This is the king truss, with two extra supports. You build the king truss, and then you add two upward-angled support beams that meet the king post in the middle and extend upward to the middles of the two top beams of the truss's triangle. Again, it only takes a few extra minutes to make, but it also gives additional support to the roof than the king truss.
The Modified Queen
For this type of truss, you build the queen truss, just as you would normally build it, except that you do not stop when the truss is finished as a queen. You add four extra little support boards, two on each side of the mid-part of the queen's "fan." These extra pieces form small "V's" on both sides. If there is going to be a lot of weight bearing down near the eaves of the roof, then these extra supports in the modified queen truss will be invaluable.