3/19/2024 0 Comments Jack pine rafter span tables![]() ![]() If I end up having to double board the cross beams too, then I’ve got even less post to work with. Simpson strong ties)? Having to notch each post for two beams and a single cross beam kinda feels like I’m not leaving myself with much 6圆 to tie run carriage bolts through. Q3: assuming I haven’t totally screwed things up thus far, what’s the best way to tie it all together - double notch the 6圆 posts or use mounting hardware (e.g. Was hoping to use a single 2x12’ at each end. The tabulated rafter spans assume that ceiling joists are located at the bottom of the attic space or that some other method of resisting the outward push of the rafters on the bearing walls, such as rafter ties, is provided at that location. Q2: Because I’m using a hip roof, I’ll also have a cross beam on each end to span the 12’ gap. Design values for Western softwood structural lumber are computed in accordance with ASTM standards based on clear-wood tests or on tests of full-size pieces in specific grades, conducted in cooperation with the USDA Forest Products Laboratory. Question 1: if I’m reading the span tables correctly (and I may not be), two 2x10 beams should be able to cover the 14’ span. Roof pitch is 6:12 with architectural shingles and solid sheathing. ![]() Common, jack, and hip rafters will be 2”x8” spaced 16” on center. meyPINE3 is available in both structural and non-structural sections, this guide provides span tables for common loading scenarios using the structural section sizes. Planning a 12’ x 14’ hip roof (outside to outside), set on 6圆 pressure treated southern yellow pine #2. Plus, I just like to learn stuff Live in Alabama, by the way, so no snow weight to worry about. See Using These Tables and Design Assumptions for additional information. If materials get too pricey, there’s no point involving others. The spans in these tables were determined on the same basis as the code-recognized Span Tables for Joists & Rafters and Wood Structural Design Data, both published by the American Wood Council concentrated loads and uplift loads caused by wind were not considered. But before I get too far along, and spend a bunch of money, I’m trying to estimate material cost. Dense elect Structural Select Structural NonDense Structural No.1 Dense No.1 NonDense No. Table 1 Floor Joists 30 psf live load, 10 psf dead load, 360 deflection. Will be permitted and will likely hire an engineer. of Visually Graded Southern Pine Dimension Lumber Maximum spans in feet-inches. Considering building a detached, covered pavilion on my property. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |