2/18/2024 0 Comments Lvl ridge beam span tableIt will look better and if you upped the size of your ridge beam to 4X14 I doubt the inspector would have an issue with the assembly. My recommendation is that if you want the look of a kingpost truss and don't wish to use LVL's, have a true kingpost truss built with appropriate posts and braces. Unfortunately for you, in a truss, connections are critical and we have no detail of your connection plans. By your drawings, your gable end is actually functioning as a truss to support the ridge beam from which your rafters will hang. He is unlikely to give any more on his margins.įrom a Timberframing perspective it would be built of larger timbers and there would likely be a detailed joinery drawing and braces. The Inspector feels that he is already giving up a degree of his safety margin by permitting you to use non-grade stamp, non-kiln dried lumber. What you are doing does not exactly fall within the scope of Timberframing or Prescriptive dimensional lumber framing. I can understand the building inspectors viewpoint. Also I live in Virginia if that helps with load calculation. Anything that is not cookie cutter they don't understand. I plan on stripping it also with either 2x4 or 1x4 to add extra for metal screws to hold. They also want to use 2圆 T&G instead of 1圆 T&G for ceiling. Inspector wants load chart to show 4x12x16 will hold the weight without ground support. I want to leave it open on the end, but don't want to mess up my curb appeal by mixing in LVL. Next issue, plan was to put 4x12 cross support on open gable end level with side girders and vertical support beam from cross beam to ridge beam without a vertical center post to ground for support. My span is 16' and fireplace framing will be offering some support on house end so actual distance will only be 14'. I planned to use 4x12 Ridge Beam, but inspector is not sure on span rating and wants to go with triple 2x12 or 2xLVL. One end will be tied into addition and the other end I want open. My patio is 16'x16', 4/12 pitch, 4x8 rafters 32"OC, 12" Overhang, 8x8 posts, 4x12 side girders. My question comes from building inspector on beam span. I am building the patio from SYP from my property, have a portable sawmill coming to mill it out. I am building a covered patio off of the back of a new addition on my house.
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