storage shed trusses??

Question

How do you figure truss length and angles for a shed type truss. I am familiar with standard trusses but not making the shed trusses (gambrel-type). I was told that the outer section has a 3/2 pitch and the inner is 2/3. Any help would be great including angles for cutting the trusses.

this is a gambrel roof (barn-style) not a gable roof.

Answer 1

Gambrel roofs are usually 20-30 degress angles. trusses are easy to make and can be done by anyone who can use a saw and hammer. You may also be able to purchase prebuilt from a good supplier of lumber. becuase these trusses have no stringers normally, the 2/3 and 3/2 rule applies to the face cut of the ajoining truss board from the middle where they will meet is a joining plate usually wood. think of this as staking lumber so that the bottom supports the top, then attach with joiner plates at each seem.

Answer 2

For that size shed, I would not waste my time building trusses from a print. I would get some pre-cut 2 x 4 studs, lay them out on the garage floor with the pitch you want, (normally a 6 inch pitch), lay a 10' 2 x 4 across the "studs" and slide it down to a point where you can notch in the birds nest. It should look like a truss. Just be sure that the distance from the peak to the 10' 2 x 4 is equal on both sides. Now, mark a vertical line at the peak and mark out the birds nest. Cut on the lines. If you plan on using a ridge rafter, lay a short piece of 2 x 4 edgewise on the peak, scribe a line on each side, cut on those lines and you will have a "slot" to lay the ridge rafter in. So, now you need one more piece just to keep the "truss" together while you install it. Assuming you have followed what I said, and plan on using a 2 x 6 as the ridge rafter, cut a small piece, put in the slot at the peak, lay a piece of 2 x 4 horizontal just below the short 2 x 6, mark it at the outside of the angled roof rafters, cut on those lines and that completes the parts for one truss. Now, cut out as many parts as you need for your trusses using the first one as a pattern for the rest. Oh, one more thing, Don't forget to "crown" all of the roof rafters. That means, sight down each piece, and put the bowed side up, facing what will be the roof sheathing. Otherwise, when you nail on the sheathing, the outcome will be a wavy apperance to the finished roof. Names of the parts: The 2 x 4 "studs" will become "roof rafters' The 2 x 4 x 10' will become the "ceiling joists" The 2 x 6 will become the "ridge rafter" The short 2 x 4 at the bottom of the 2 x 6 will be the "ridge rafter support beam." The birds nest ( or mouth) is a notch cut in the roof rafter so the rafter will rest squarely on the top plate of the walls. The 2 x 10 and the ridge rafter support beam are nailed with 16d nails on top of the roof rafters when laying down on the floor during assembly.

Answer 3

storage shed trusses

Answer 4

what kind of roof are you putting on it ?
Hip, gable ? gable roofs are normaly 4 12, pitch