Forgot to use pressure treated sill plate. Feb 16, 2021 · I have a bathroom project in my basement.

Forgot to use pressure treated sill plate. Or at least look at the longevity specs for PT'd lumber available in your area. May 14, 2025 · Without proper treatment, sill plates made from untreated wood can be vulnerable to pests like termites and carpenter ants. But you should be using pressure treated sill plates in either case. Sill plates are typically made from pressure-treated lumber or concrete, as they are in direct contact with the foundation and are therefore susceptible to moisture and rot. Are sill plates and basement bottom plates totally different in a way that im not getting? Mar 19, 2025 · Types of Sill Plates Used in Construction 1. 6: Requires that sill plates be . Now according to him I will not pass the county code. Hi-bor Borate Pressure Treated Lumber is also recommended for fascia, trim, and miscellaneous wood applications, when properly protected from the weather (refer to limitations). It’s commonly used as base plates for basement walls in contact with concrete and as sill plates on top of foundation walls. I would choose a good tight grain white oak sill (treated with Borate) over PT every time. You could treat any cut ends of the sill plate with copper coat though. When considering indoor projects that require sturdy and durable wood, pressure-treated lumber can be a reliable choice. I am getting ready to call in a framing inspection, but was told by a contractor friend that I will fail my inspection unless I remove the sill plate and install a pressure treated wood sill. It’s a […] Jul 3, 2024 · The point of a garage sill plate is to connect the wall frame to the concrete floor using anchor bolts. 4K views 13 replies 5 participants last post by Eddy66 Aug 19, 2020 E Weyerhaeuser manufactures zinc borate treated TimberStrand® LSL sill plates, columns, and studs using our patented StrandGuard® TimberStrand® LSL process that provides protection against structural damage caused by wood-destroying insects and decay. If they were NOT pressure treated I would have recommended Copper Coat (a paint/spray on coating), but that's not needed with pressure treated wood since you already have the preservative in the wood. steve Another thing came to mind. Specification Data SillBor® Borate-Treated Wood Devised for sill plate, but useful in varied applications, SillBor® borate-treated wood provides the economy and workability of ordinary wood while adding years of life to typical wood structures. Not a mandatory thing, but helps cushion irregularities in the concrete a little. Or, you could do a 2x12 sill plate and rip down the boards to 9 1/2" inches. I was looking at a recently constructed addition the other day. The sill plate (sometimes called the mud sill) is the board laid directly on top of the foundation wall (Figure 1). He did not have any suggestions other than telling me that if he pulls permit which he has to for the new panel, the county will pick on my bottom plates. Anatomy of a Sill Plate Assembly Diagram A sill plate diagram illustrates the placement and interaction of the sill plate with various construction elements. Oct 14, 2025 · To summarize, when it comes to sill plates in construction, it’s important to use high-quality, pressure-treated lumber to prevent insect damage and decay. Apr 6, 2021 · Could you use a conventional pressure treated 2x10 sill plate? The 9. Jul 20, 2024 · Why is the key role of the Sill Plate in construction? A sill plate is the bottom part of the wood frame where wall studs attach. May 14, 2025 · What Is a Sill Plate? The sill plate is a horizontal pressure-treated lumber component—typically a 2×6 or 2×8 board —that is anchored directly onto the top of a foundation wall or slab. If it hasn't decayed by this time, I wouldn't be too concerned May 14, 2025 · When Are Sill Plates and Bottom Plates Used Together? In standard wood-frame construction, both sill and bottom plates are used in tandem: Exterior walls: A pressure-treated sill plate is first bolted to the concrete foundation, followed by the bottom plate of the framed wall sitting atop it. Mar 9, 2009 · A "green light" moisture meter reading in the pressure-treated sill because of something this building assembly has. It is mounted directly onto a concrete or masonry foundation wall, forming the base of the wall framing. It is the primary interface between the house’s wooden structure and the concrete foundation. It acts as a transitional layer between the foundation and the vertical wall framing above. For buildings in areas with heavy moisture exposure or in flood-prone zones, concrete or steel sill plates may be used for added durability and resistance to corrosion. I am using PT wood for the sole plates. Nov 9, 2004 · I have completed framing the walls using typical 2x4 studs, top and bottom plates. The International Residential Code (IRC) mandates the use of pressure-treated wood for any framing member that comes into contact with Jun 7, 2017 · I have a 8" thick concrete foundation, and am wondering if I should use 2x6 or 2x8 PT for the sill plate. 5" of open cell spray foam is going in the exterior walls today. It serves as the foundational anchor for the entire wall framing system. Jul 5, 2025 · Materials Used for Double Sill Plates Pressure-Treated Lumber: Usually the bottom plate is pressure-treated to resist moisture, rot, and insect damage since it contacts the foundation or slab directly. May 19, 2021 · There is an article on this site “Pressure treated sill plates and the building code” that seems to indicate that a capillary break negates the need for PT and treats the cause rather than symptom of high moisture in sill plates. In platform construction, the band joist and floor joists rest on top of the sill plate. Use a sill sealer to protect the wood from damage Nov 4, 2013 · The more I read the more confused I'm getting. For a basement wall, sill sealer usually isn't required by code when using PT bottom plate, and the air sealing aspect isn't needed, but it's still a good idea as a capillary break. Apr 21, 2015 · Since about the late 1980's I have been under the assumption that sill plates should be pressure treated wood (or decay resistant). Sill plates are very easy to install and the first step in framing, after many long hard hours spent on the foundation. Code requires pressure-treated lumber wherever framing is in contact with foundation concrete. Aug 1, 2020 · I thought you (Jeff) had recommended an underlayment for the bottom plate, so you didn't have to use pressure treated lumber. One option is to use pressure-treated 2×4 lumber made for damp areas as a bottom plate, in conjunction with properly coated fasteners, such as hot-dipped galvanized or stainless steel, in contact with treated lumber. Use pressure-treated lumber and anchor bolts for a secure, code-compliant foundation. May 31, 2023 · I’m planning to use pressure treated 2x4s as the bottom plate with another normal 2x4 sistered on top. Jan 4, 2019 · The existing construction is new and didn't use pressure treated wood for the sill plate. Can I just use concrete sealant caulk along the gaps between the plate and concrete instead of disassembling the the Jul 1, 1993 · Q. Apr 8, 2016 · Sill sealer under a sill plate serves as both an air sealer and a capillary break, preventing air from leaking in or out through small gaps and keeping moisture from wicking from the concrete into the framing. Materials commonly used include: Pressure-Treated Lumber Treated to resist rot, termites, and mold—this is typically required by building codes when in contact with concrete. Not sure about code in your area, but typically the vapor barrier does not go below the bottom plate for the walls, however it usually does have to either be pressure treated lumber or has a sill gasket between un-treated lumber and the concrete slab. I know PT lumber resists rot caused by moisture and is rated for ground contact, so moisture from the concrete against the sill plate is not going to cause lot of damage. Between the slab and the PT board, I’m putting a roll of ComfortSeal sill plate gasket. Feb 11, 2016 · No, and I would not recommend using pressure treated inside of a home. Pressure-Treated Wood The most common material for sill plates is pressure-treated wood, typically southern yellow pine. I have seen surface-treated lumber sold in stores out West but not the stuff to do it yourself. The wood is always treated due to termite risk - but there are inexpensive alternatives to 'pressure treated', such as borate. Moisture meters should be used when using pressure-treated wood for sill plates, even if the house foundation is indoors. May 14, 2025 · What Is a Sill Plate in Construction A sill plate, also known as a mud sill, is a horizontal structural member made from pressure-treated lumber. This component is usually constructed from pressure-treated lumber to resist moisture, decay, and insect damage, as it is in direct contact with materials susceptible to holding moisture Oct 3, 2025 · Yes, you can use pressure-treated wood indoors. You won’t need pressure-treated plates on interior partitions for crawlspace and basement houses, but you will need them over slabs. Sep 19, 2019 · Treated plates are significantly heavier, more expensive, and also annoying to work with because they warp a day after picking them. Jun 28, 2006 · What size and type of nail would you use to attach 2 x 4 wall studs to a 2 x 6 Pressure treated sill plate ? Galvanized- commons, 3-inch or 3 […] Sep 27, 2024 · Contractors often use pressure-treated lumber regardless of the location, but no direct contact is needed for pressure-treated bottom plates. I'm considering going to common kiln dried lumber and using the foam sill sealer then, but I worry that if the basement ever floods that sill plate will wick up water so fast, and destroy the drywall and studs Nov 29, 2018 · Q: If I use an impervious foam sill seal under the mudsills, is treated wood required for the sills?A: Glenn Mathewson, code educator and consultant from Colorado (buildingcodecollege. I made the mistake of not using pressure-treated lumber for the bottom plate. Another option is to use a barrier, such as a sill gasket (link to Amazon Nov 24, 2021 · This treatment serves to protect the wood from decay and it does not only apply to bottom plates. The X-CP fastener has a pre-mounted 0. Jun 23, 2017 · You always want to use pressure treated wood that is in contact with concrete. It usually consists of one layer of 2x6 or 2x8 pressure-treated lumber. Sill plates on slabs should be pressure treated, as it seems cheaper and easier to decide on. Jul 8, 2024 · It is essential to use pressure treated wood for the sill plate to ensure compliance with the sill plate building code and to protect the integrity of the garage structure. This wood is chemically treated to resist decay, fungus, and insect infestation, particularly termites. It is about 1/4" thick and can be easily ripped down via perforations to any wood width, ie. Is there a sealant I / we could use after the fact here that could help? Anything we should request moving forward that's more building science forward? Our siding will be stucco if that's helpful at all. 1. Its primary purpose is to connect the wooden framing to the concrete base, creating a stable platform for the rest of the structure. I do not want to use pressure treated wood for the sole plate or sill plate. Like anything else in construction, it seems the requirements vary depending on where you are. Jan 14, 2025 · Nowadays, sill plates are typically composed of pressure-treated lumber available in various sizes, such as 2x4 or 2x6, to suit different construction needs. You can find more information on where pressure-treated framing can and should be used in Can You Use Pressure Treated Wood for Interior Framing. This will protect the bottom plate from moisture damage that can compromise the integrity of the wall. Apr 3, 2010 · The only lumber required to be pressure treated is the bottom plate. These plates must be made of pressure treated lumber since concrete has a tendency to wick moisture Jun 1, 2025 · Get practical steps to install a sill plate on a concrete slab. I just had a customer ask about A sill plate, sometimes called sole or bottom plate, is the horizontal framing member at the bottom of a wall that the wall studs are connected to. Dec 17, 2024 · In residential and commercial construction, sill plates are typically made from treated wood, such as pressure-treated lumber, to resist rot, pests, and moisture. Most sill plates are made from pressure-treated lumber, which resists rot, moisture damage, and insect Jul 24, 2004 · Hello Everyone, Do you need to use pressure treated lumber for the sole plate in basement partition walls? The walls will be sitting on the concrete slab. That is why on the exterior there is both a moisture barrier (flashing) and a sill sealer (air flow). Minimum edge nail spacing for 2x sill plate: one row at 4" on-center. Minimum edge nail spacing for 3x sill plate: two rows at 4" on-center, staggered. Aug 22, 2013 · Basements, Attics and Crawl Spaces - Pressure Treated vs non - I am starting to frame my basement and I was wondering if I need pressure treated for the sill plate (Bottom) if I am using that thin layer of Styrofoam between the sill plate and the concrete floor? Also, when hanging the drywall, should there be any space Dec 19, 2024 · Traditionally, treated wood or pressure-treated lumber is used for the mud sill. My question is: Do I need to put a sill plate gasket underneath the PT wood that serves as sole plates for these non-load-bearing walls? Jan 31, 2022 · Pressure treated lumber also rots (often the center rots out where the treatment didn't penetrate), and is generally a very poor quality building material. Using just a sill seal on an interior wall bottom plate over a slab serves no useful purpose. Building codes mandate their installation above the finished grade to minimize the risks of termite infestation and wood rot. Sill plates are very important because they make the house stable, distribute its weight, protect it from weather, and support its overall structure. A Basic Uses Hi-bor Borate Pressure Treated Lumber is recommended for sill plate, joists, studs, roof trusses, blocking, rafters, beams, and other framing applications. This lead me to believe that since the basement walls had an exterior vapor barrier that this must mean pressure treated wood wasn't required since the slab isnt in direct contact with the ground. To combat this, pressure-treated lumber is commonly used to ensure that the sill plate is resistant to water damage and pests, extending its lifespan and safeguarding the structural integrity of the building. May 14, 2025 · What Is a Sill Plate in Construction? A sill plate, also known as a sole plate or bottom plate, is a horizontal wood member that rests directly on the foundation wall, typically made of concrete or masonry. com), responds: Sill seal is intended to air-seal the joint between the foundation and the mudsills, but it also provides a capillary break between the concrete and the framing. Oct 2, 2013 · Sole plates, or sill plates, are the first pieces of framing lumber placed in home construction. Jan 27, 2024 · Can I use a different type of wood for the new sill plate, or is pressure-treated lumber necessary? Pressure-treated lumber is highly recommended for the new sill plate as it provides resistance against decay and pests, ensuring the longevity of the replacement. Furthermore, it is even required for bottom plates of floating walls. It is typically 2”x4” or 2”x6” in residential construction, and if installed over a concrete foundation, it is probably treated with a preservative to prevent absorbing moisture from the concrete. Jul 5, 2025 · Common Sill Plate Materials Sill plates must be durable, resistant to moisture, and code-approved. Settling and Shifting Improper installation of the sill plate can lead to shifting or settling, which can impact the entire Mar 3, 2024 · Sill plates serve as the transition between masonry and wood framing. The sill plate is usually thought of as a horizontal piece of lumber. The pressure treated wood is just directly on the sill, there's no gasket or anything to protect between the wood and the concrete. This prevents water Jun 6, 2012 · If so do I build the wall by bottom nailing the regular sill plate to my studs and then top nail this plate to the pressure treated plate once wall is up and bolted to the foundation. May 14, 2025 · Typically, sill plates are constructed using pressure-treated lumber, such as 2×6 or 2×8 boards, to resist decay and insect damage due to their contact with concrete. Anchor bolts embedded into the foundation are used to secure the sill plate, ensuring the structure May 30, 2025 · What Is a Sill Plate? A sill plate, also known as a sole plate or mudsill, is a horizontal wood beam that sits directly on top of the foundation wall. Mar 16, 2014 · Is it advisable to use treated lumber for the bottom plate when framing out concrete basement walls for later drywall installation? Floor is currently bare concrete. Dec 29, 2023 · Learn more on your local building codes and regulations related to the use of pressure-treated wood in construction projects. I believe 2x6 would be substantial, but if I use 2x8 I would have something to fasten to May 14, 2025 · Building Code Implications in USA Construction Both sill plates and sole plates are regulated under the International Residential Code (IRC) and must meet material, installation, and treatment standards. Aug 29, 2003 · In termite prone areas is there any reason why one couldn’t or shouldn’t use pressure treated wood for the bottom plate? I am interested in installing the PT bottom […] May 14, 2025 · By using pressure-treated lumber, the sill plate helps protect the building from insect infestations, particularly termites, which can significantly damage the wooden framing of a structure. You need to stop moisture not air. I like to use sill seal under mine. Standard Dimensional Lumber Used above grade or with additional protective membranes in low-moisture environments. Jun 11, 2021 · With pressure treated sill plates, you're in pretty good shape. Oct 16, 2009 · I forgot to add that the sill must be pressure treated if in contact with concrete or masonry and any wood in contact with concrete or masonry that is in direct contact with the grade like basement furring strips. Shear Walls When StrandGuard® TimberStrand® LSL sill plates are used in shear-wall construction, use the specific gravity of the studs when determining the allowable shear. Your future self, not to mention your home’s structural integrity, will thank you. Reference General Guidelines on top of following page for fastener recommendation dependent on environment conditions and lumber type used. 1: Requires that all wood in contact with concrete or masonry must be pressure-treated IRC Section R403. Also, does using a Hilte type nail ( 3") pose any potential problems for future water seepage? ( trying to fix the old problems, don't want to create new ones!) Thanks for your help! Jonathan Mar 2, 2010 · The X-CP fasteners are suitable for use with pressure treated lumber sill plates. 2x6 or 2x4, etc. Would those need a pressure treated bottom plate? I am in Alberta, Canada, and I can't seem to find the right answer. Mar 15, 2009 · For hundreds of years, houses were built without treated sills. Use borate-treated lumber, rigid foam, and cellulose insulation (see more on borate treatment in the section below). SPF non pressure treated is fine as long as you speperate the wood from concrete like vapor barrier. May 14, 2025 · Commonly used species include: Pressure-Treated Southern Yellow Pine Douglas Fir (Preservative-Treated) Hem-Fir (Treated with Borate in Interior Applications) All sill plate materials must meet American Wood Protection Association (AWPA) standards and be rated for ground-contact or above-grade exposure, depending on placement and use. You might want to talk to a structural engineer to assure yourself of the life expectancy of either system. Also use powder actuated pins to secure the plates to the concrete. They used D Fir. The sill plates were not pressure treated. Image Credit: Peter Yost Code requirements for wood-concrete contact treat the symptoms of rot, not the cause Last week we talked about moisture meters, and I asked readers why the wood in the picture was wet. Use a sill seal when required by design professional or local code StrandGuard® TimberStrand® LSL framing materials are intended for use in aboveground, protected applications such as sill plates, columns, and studs. May 14, 2025 · A sill plate is a horizontal structural member made of lumber, typically pressure-treated, that is anchored directly to the top of a concrete foundation wall or slab. 3. Our patented StrandGuard® process treats these sill plates throughout the cross section so you don't have to worry about field treatment when you drill for anchor bolts. In looking at the Feb 23, 2016 · I use PT on the sill plate with a sealing foam but have never used PT on the interior bottom plate. Proper installation of the sill plate is critical to ensure building code compliance, structural durability, and long-term performance. However, it is just as important that any vertical masonry surfaces also have a transition piece of pressure treated lumber installed in a similar manner as the sill plate, using a foam gasket between the masonry foundation and the lumber. I'm getting mixed feedback on this, seems to be three camps when it comes to using sill-seal between concrete and wood: No sill-seal required if using Pressure Treated lumber Yes, use sill-seal even with PT lumber & interior walls - even though the PT won't rot, it will still act as a moisture capillary which could rot the studs above it. Oct 3, 2025 · Installing a poly vapor barrier over the concrete, using sleepers under the sub-flooring, and applying a quality sill plate sealer and fluid-applied flashing are some of the essential steps to seal the space between concrete and wood. This sequence creates a multi-layered barrier and framing system. It anchors the wall framing to the foundation and distributes structural loads evenly. The International Residential Code (IRC) mandates the use of pressure-treated wood for any framing member that comes into contact with May 13, 2016 · I have a barn I am restoring. That might seem to suggest that it Sep 10, 2025 · The sill plate, or mudsill, is typically a pressure-treated piece of lumber that is bolted directly onto the concrete or masonry foundation of your home. Mar 3, 2021 · The partition walls will not be touching the cinderblock foundation; there will be a 4" gap between the non-load-bearing walls of this room and the house's foundation. I have not had any inspections yet. Is this right? Sill plate is PT lumber used on top of a concrete foundation on the bottom of a wall. Do you need to use pressure-treated lumber for the bottom plates on interior partitions over a slab? A. [1] They lay right on top of your stem wall. Everything is roughed in, and I have access to the framing since I haven't pu Use a pressure-treated bottom plate or add a barrier to keep that wood nice and dry. ) What could be placed between the concrete and the untreated plate to make Mar 31, 2019 · Hello Everyone – Quick context here is we used non-pressure treated lumber for all of our interior partition bottom plates, which caught the attention of a contractor friend. You should also take steps to ensure that your sill plates are stable and secure to prevent any issues with the overall stability of your structure. Pressure-Treated Lumber Sill Plates Most sill plates in the USA are made from pressure-treated wood, which undergoes a chemical treatment process to enhance resistance against moisture, decay, and termites. For sill plates, use preservative-treated wood. Can anyone Feb 5, 2025 · However, pressure-treated lumber is generally used for lower plates in basements, and a new type of plywood allows the use of untreated sill plates and sleepers if the wood is separated from the concrete by an impervious moisture barrier. Sep 20, 2018 · I did not install a sill seal membrane between the concrete foundation and the pressure treated sill plate. While walls can be attached directly to concrete, it is usually better to use a sill plate. Feb 1, 2008 · Thanks for all the replies. May 18, 2022 · Preparing the foundation is worth the effort Mudsills, or sill plates, or sole plates, as they are referred to in Chapter 4 of the the International Residential Code (IRC), are the first piece of framing lumber installed on most projects. I've been pouring over the 'ole code book this morning, and can't find anything calling for it. 5" studs would overhang the sill plate by a 1/4" of an inch. Standard Lumber: The top plate of the double sill can be untreated dimensional lumber, as it is elevated above potential moisture sources. Virtually everything I have seen constructed since that time has been. The American Wood Protection Association (AWPA) standards classify such applications as Use Category 2. My carpenter would use 4 x6 locust at 12 foot lengths, but we cannot find any. May 5, 2023 · The entire perimeter of the house has pressure treated bottom plates, but my question is to do with the interior, non-load bearing walls that I am about to build. May 14, 2025 · By using moisture-resistant materials like pressure-treated wood or steel, the sill plate acts as a protective barrier, preventing wood rot, mold, and other moisture-related issues. Dec 21, 2024 · If untreated, wood sill plates can absorb moisture, leading to rot, mold, and eventual degradation. This is because wood provides the necessary strength to support the framing system and can withstand the wear and tear of outdoor exposure. It is a pressure treated horizontal wood piece. How Is A Sill Plate Used? When constructing a house, the sill plate is first laid out on top of the foundation walls, with anchor bolts or screws used to secure it in place. Nov 11, 2022 · Foam sill plate sealer is to stop air penetration not to stop moisture wicking. Feb 16, 2021 · I have a bathroom project in my basement. Strandguard is getting difficult to obtain. May 14, 2025 · What Is a Sill Plate in Construction? A sill plate is a horizontal piece of lumber —typically pressure-treated wood —that sits directly on top of the concrete foundation or masonry wall of a building. Apr 17, 2020 · My framers used pressure-treated sill plates on top of the concrete foundation wall, but also placed untreated wood directly against the foundation wall and on the slab. Easier and faster May 14, 2025 · Constructed usually from 2×6 or 2×8 pressure-treated lumber, sill plates are not only essential for stability but also play a role in energy efficiency and pest control. None of the studs should be touching the concrete wall. Everything that's being posted here, and everything that I've read elsewhere, seems to agree that sill/bottom plates that touch concrete should be pressure treated lumber, or some other form of water resistant material, etc. Sole plate is PT lumber on a concrete floor as used in a basement partition wall Dec 18, 2024 · Sill seal on stick built helps interrupt that contact. Jul 29, 2018 · Just for the sake of discussion, what would be required for a sill plate on a concrete foundation wall to not have to be pressure treated? (Think untreated Timberstrand plate. So, the moisture barrier would serve two purposes: moisture barrier under the poly-iso; and moisture barrier/underlayment under a bottom plate of a wall. May 20, 2017 · The builder used pressure treated 2*4s for the sill plate but there is no (capillary) barrier between the concrete and the sill plate. In your case, sill seal would be acting more as a capillary Jun 29, 2023 · We wrote it up, the engineer later specified to remove the foam under the sill plate, and support the sill plate with a thick steel angle bolted to the concrete. So if its a frost wall run tarpaper to the grade height outside, 2x4 wall insulate, make sure you have vapour barrier on the bottom of the plate you do not need pressure treated or sill gasket, the sill gasket will do May 14, 2025 · Wooden sill plates in construction in the USA are typically crafted from pressure-treated lumber, designed to withstand environmental factors and extend the life of the structure. I have to wonder if treated sills were even required in 1974. May 12, 2003 · Apparently some how I totally forgot to use pressure treated lumber for the bottom plates. May 14, 2025 · Materials Used for Sill Plates 1. Plenty are still standing today. Even if you found some you'd still have to take down the wall to treat the underside of the bottom plate. The use of pressure-treated wood and insect barriers is crucial for preventing these issues. One part of the foundation is more than 18 inches above grade level. Aug 19, 2020 · PT Lumber Sill Plate for Shed foundation lumber pressure treated wood sill plate Jump to Latest 8. A sill plate, also known as a mudsill or sole plate, is a horizontal piece of lumber that sits directly on top of a building’s foundation. They are commonly bolted to the foundation to make the transition from concrete to wood. 905" (23 mm) 16 gauge washer for fast and reliable installation. Also, it is essential to use pressure-treated lumber if the wood is coming into direct contact with concrete. From what Dirtyturk says, the requirements are TimberStrand LSL Treated Sill Plates save time and hassle. The builder may have used a sill sealer between the sill and the masonry, which was acceptable (and may still be today). Bottom plate is standard lumber on wood on the bottom of a wall. Key code considerations include: IRC Section R317. In addition if the foundation anchor bolts are going through both sill plates should I use 8" or 10" anchor bolts. wttkx retq gesi lmvk kcbt fwn vnf 5rmni p6xz a08db