I'm trying to work through preliminary design decisions for a detached 4 car garage and would appreciate input. Is for a duplex in Dayton, OH.
General: 44 x 24, with (2) 18x8 doors on the eave side (2' on the ends and 4' in between). Thinking 10' walls, but they could be just over 9'. Thinking on board and batten siding, using hardiboard and cedar battens. Asphalt shingled roof.
I'm an engineer who likes learning about things and doing them myself and have done extensive renovations on three residences. I'm considering doing just about everything but the slab.
--Rafters with a structural ridge beam vs trusses? Since I don't need a ceiling, the cost looks about the same. Rafters take longer, but seem more "useful," since you don't lose so much potential storage space. There will be a dividing wall between the two halves, so would need a 24' ridge beam. Would like to be a box beam, but not sure if that would get approved; otherwise see a LVL in the cards.
--Foundation type? The soil here in Dayton has some gravel in it and drains extremely well. The water table is low. The default seems to be poured footer with a CMU stem wall above that. People seem to like "keying" the pad on a ledge on the stem wall (say, after a reduction from 8" to 6" block). To anchor the APA Narrow Wall Bracing for my sheer walls next to the garage doors, would I bring threaded rod up from the footer through ~5 courses of block? Other options for the foundations that are better/cheaper/easier to execute?
General: 44 x 24, with (2) 18x8 doors on the eave side (2' on the ends and 4' in between). Thinking 10' walls, but they could be just over 9'. Thinking on board and batten siding, using hardiboard and cedar battens. Asphalt shingled roof.
I'm an engineer who likes learning about things and doing them myself and have done extensive renovations on three residences. I'm considering doing just about everything but the slab.
--Rafters with a structural ridge beam vs trusses? Since I don't need a ceiling, the cost looks about the same. Rafters take longer, but seem more "useful," since you don't lose so much potential storage space. There will be a dividing wall between the two halves, so would need a 24' ridge beam. Would like to be a box beam, but not sure if that would get approved; otherwise see a LVL in the cards.
--Foundation type? The soil here in Dayton has some gravel in it and drains extremely well. The water table is low. The default seems to be poured footer with a CMU stem wall above that. People seem to like "keying" the pad on a ledge on the stem wall (say, after a reduction from 8" to 6" block). To anchor the APA Narrow Wall Bracing for my sheer walls next to the garage doors, would I bring threaded rod up from the footer through ~5 courses of block? Other options for the foundations that are better/cheaper/easier to execute?
