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Old 10-21-2011, 04:51 PM   #1
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bolting down sill plate to stem wall


Im getting ready to pour a foundation and stem wall for a car port. The stem wall is 18' long. The inspector told me to pour the stem wall 6" wide even though its only a 2x4 wall. How often do i have to bolt down the sill plate and what is the minimum size bolt?? Also, can i use a 2x4 sill plate on top of the 6" stem wall?

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Old 10-21-2011, 05:02 PM   #2
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Im getting ready to pour a foundation and stem wall for a car port. The stem wall is 18' long. The inspector told me to pour the stem wall 6" wide even though its only a 2x4 wall. How often do i have to bolt down the sill plate and what is the minimum size bolt?? Also, can i use a 2x4 sill plate on top of the 6" stem wall?
The inspector will obviously have the answers for you. He's the one that will be inspecting it. How come you don't ask him?

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Old 10-21-2011, 05:44 PM   #3
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I'll have to ask him if nobody on here knows the minimum code requirements
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Old 10-21-2011, 05:51 PM   #4
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Jimmy, you haven't even told us where you live, how can you possibly expect anyone to know what the minimum code requirements are for your area? Revealed truth from God?
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Old 10-21-2011, 06:04 PM   #5
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oregon. I thought it was a national thing. Guess not
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Old 10-21-2011, 06:54 PM   #6
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i dont know what the code is for your region but here its 6 ft o.c. however i put them every 4 ft
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Old 10-21-2011, 06:57 PM   #7
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found my answers
2304.3.1 Bottom plates Studs shall have full bearings on a 1 1/2 inch thick or larger plate or sill having a width of at least the width of the studs

2308.6 foundation plates or sills foundation plates shall be bolted or anchored to the foundation with at least 7 inches into concrete or masonry and spaced not more than 6 feet apart. There shall be at least 2 bolts per piece with one bolt located less than 12 inches and more than 4 inches from the end of each piece.
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Old 10-22-2011, 08:26 PM   #8
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nicely done, theres a man with a code book
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Old 10-22-2011, 09:41 PM   #9
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Found an online code book on the Oregon building codes website
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Old 10-23-2011, 11:52 AM   #10
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found my answers
2304.3.1 Bottom plates Studs shall have full bearings on a 1 1/2 inch thick or larger plate or sill having a width of at least the width of the studs

2308.6 foundation plates or sills foundation plates shall be bolted or anchored to the foundation with at least 7 inches into concrete or masonry and spaced not more than 6 feet apart. There shall be at least 2 bolts per piece with one bolt located less than 12 inches and more than 4 inches from the end of each piece.
That seems to be pretty much standard in most places....

Just one extra thing...if any walls are a shear wall (A, B, C, D), more anchor bolts may be required and if you have a B or stronger shear wall, your mud plate would need to be 3x material.

If you live in a storm area....anchor bolts every 48" would not hurt....

When I did my foundation, I used a grease pencile and marked where each stud would go (16" OC)...then marked where to put the anchor bolts....nothing worse than having to adjust stud position because an anchor bolt is in the way. Make sure you also allow space for the washer...typically 3x3. AMHIK.
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Old 10-23-2011, 12:06 PM   #11
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bolting down sill plate to stem wall


Hey Jimmy, don't they require plans for projects like this in Oregon?

Andy.
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Old 10-23-2011, 12:14 PM   #12
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Hey Jimmy, don't they require plans for projects like this in Oregon?

Andy.
Ya, I drew them myself. The inspector is pretty lax on the plans. If something was a violation he would call it but he is good to deal with. If he showe up to inspect he would sure knock you on a violation, though
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Old 10-23-2011, 12:43 PM   #13
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Well post a picture of them, let's see what you got.

Andy.

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