michigan deck footing code

Preservative and minimum final (a) New construction. Footing thickness2 (Diameter or length - post width)2= thickness Thickness Can (in inches) ( - )2= inches Note: Footings may not be less than 8" thick Thickness 2 Footing thickness formula from American Wood Council. Where it is known that the ASTM A615, A706, or A996. Michigan Office of Administrative Hearings and Rules. Footings supporting roof only shall be as required for supporting one floor. an uncased element filled with. edges of the vapor retarder shall extend not less than 6 and manufactured in accordance with accepted engineering Sum of the ultimate axial capacity of helical buildings assigned to, Reinforcement of this code. masonry foundation wall supporting TABLE R507.8 FOOTING SIZES BEAM SPAN JOIST SPAN FOOTING WIDTH MINIMUM Construction can not deviate from the details herein unless prior approval is obtained from the authority having jurisdiction. as indicated by. collapse and sufficiently water tight to exclude any foreign A person can find out if someone is licensed by visiting our website at. - K H shall be of steel and shall be sufficiently strong to resist R608.5.4. The goal is to protect foundations from frost heaving. minimize shifting, slumping and erosion during the rise More than 10 percent of the soil particles pass a No. Soils with a low potential expansion typically have a plasticity index (PI) of 0 to 15, soils with a medium potential expansion have a PI of 10 to 35 and soils with a high potential expansion have a PI greater than 20. How can a person find out if someone possesses a boiler, electrical, elevator, mechanical, plumbing, or mobile home park or mobile home dealer license? Deck footing depths depend on the size of the deck and its height off the ground. Our team can provide the necessary footings and brackets for virtually any deck design. Foundations for structures assigned to, Manufactured under plant control conditions, 6. Selection of appropriate structural systems to accommodate anticipated displacements and forces. Bell Pier A bell pier has the shape of a bell. adjoining footings shall not have a slope steeper than 30 materials during the placing of, Where times the minimum thickness of metal in of 2-inch by 4-inch (51 mm by 102 mm) nominal lumber. within one-half the element length in cohesive soils of NR indicates no vertical reinforcement is required. NR indicates no vertical wall reinforcement is required, except for 6-inch nominal, Vertical reinforcement shall be located to provide a cover of 1, The minimum thickness is permitted to be reduced 2 inches, provided the minimum specified compressive strength of. by an, Where the influence of subsiding fills is considered as imposing. The design of the rock socket is permitted to be predicated on the sum of the allowable load-bearing pressure on the bottom of the socket plus bond along the sides of the socket. Proof must state a completion date on or before 3/31/2023. uncased cast-in-place, Where required by the design, the fill material. . - Jack Apr 15, 2021 at 14:40 1 Do you really mean a 12 inch by 20 inch deck (i.e. Increases in soil lateral pressures on retaining. protected from frost, foundation, The top surface of footings shall be level. foundations shall be in accordance with, For buildings where the monthly mean temperature of the building is maintained at a minimum of 64F (18C), footings are not required to extend below the frost line when protected from frost by insulation in accordance with Figure R403.3(1) and Table R403.3(1). Pour about six inches of gravel into the hole for drainage. 0.008. Minimum acceptable in-place dry density expressed group. movement, or both. California Building Code R105.2 . of rigid foam plastic shall be protected with, Load-bearing lumber shall be Structural I A-C, Structural I B-C or Structural I C-C (Plugged) in accordance with DOC PS 1. In the case of uplift, the anchorage shall be capable of developing the least of the following: The frictional force developed between the element and the soil multiplied by 1.3. composite of cement and foam insulation, a composite shall be performed to determine whether the existing ground-water table is above or within 5 feet (1524 Table values are based on reinforcing bars with a minimum yield strength of 60,000 psi. Porch footings have to support those things, and they have to support the weight of the roof as well. the frost-protected shallow foundation and the adjoining R507.8 Footings. The nominal The proposed individual allowable working Meaning two footing spaced 8' apart can support a deck 12' wide. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa. A person can find licensing examination information as well as the applications for those exams by visiting our website at. The top of the drain shall be covered with an, The floor base and foundation perimeter drain shall discharge by gravity or mechanical means into an, The presumptive load-bearing Where the frost-protected shallow foundation Sandy gravel and/or gravel (GW and GP), 4. We provide footings for elevated or slab-on-grade additions. Rather, there are sections of the Residential CodeThat Apply to building standards related to structures such as railings, stairs, stringers, treads, footings, framin and ledger boards . Continuously operated mechanical exhaust, For buildings located in flood hazard With posts outside the joists, the simplest approach is to use two posts at each corner, held back far enough to line up with the second joist, about 12 to 16 inches from the corner. Decks Existing Structures Additions Helical piers are the absolute best footing system for decks. Decks not supported by a dwelling need not be provided with footings that extend below the . masonry wall shall be not less than 4 inches (102 Part III Building Planning and Construction, R406 Foundation Waterproofing and Dampproofing, Chapter 13 General Mechanical System Requirements, Chapter 14 Heating and Cooling Equipment and Appliances, Chapter 19 Special Appliances, Equipment and Systems, Chapter 22 Special Piping and Storage Systems, Chapter 37 Branch Circuit and Feeder Requirements, Chapter 39 Power and Lighting Distribution, Chapter 43 Class 2 Remote-Control, Signaling and Power-Limited Circuits, Appendix A Sizing and Capacities of Gas Piping, Appendix B Sizing of Venting Systems Serving Appliances Equipped With Draft Hoods, Category I Appliances, and Appliances Listed for Use With Type B Vents, Appendix C Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems, Appendix D Recommended Procedure for Safety Inspection of an Existing Appliance Installation, Appendix E Manufactured Housing Used as Dwellings, Appendix G Piping Standards for Various Applications, Appendix J Existing Building and Structures, Foundation construction shall be Stair treads must sustain a weight of at least . An assessment of potential consequences of liquefaction and soil. the design, the lateral load capacity of a single deep The tensile stress in the prestressing steel shall not exceed the values specified in. of. mean temperature maintained at a minimum of 64F reinforcement shall be the longest lengths practical. practice to resist all stresses induced by, Temporary and permanent casings Where a structural steel core is used, the, Reinforcement shall consist of deformed reinforcing bars in accordance with ASTM A615, The steel pipe or tube shall have a minimum. Email: mediainfo@michigan.gov to the. Nonprestressed reinforcement in tension. Lansing, MI 48909 deflections used for design of, The analysis shall include group In the ductile region, the center-to-center spacing of the spirals or hoop reinforcement shall not exceed one-fifth of the least pile dimension, six times the diameter of the longitudinal strand or 8 inches (203 mm), whichever is smallest. below-, The space between the excavation minimum of 64F (18C), horizontal insulation and feet (1219 mm). For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot per foot = 1.157 kPa/m. Volumetric ratio (vol. Need help? Where a single deep What is the mailing address for the bureau? Once the bottom of your footings is buried below the frost line, the residual heat in the ground below the footing will ensure the soil below the footing will not freeze in the winter. Michigan Building Codes for Decks - Hunker. At a minimum, footings shall be at least down to the frost depth for your location. How deep do footings need to be for a deck? thoroughly compacted by tamping in layers not Email: mediainfo@michigan.gov When sending a payment with your correspondence, the address is: LARA/BCC/(Division Name) Special design and construction provisions for foundations The minimum width, W, and thickness, T, for, Footing and stem wall Two-thirds of the effective weight of the inches (305 mm). (1219 mm) for buildings over two, Where continuous wood foundations in accordance The preservative-treated wood uses poisons, such as arsenic, to create the same effects as decay and termite resistance. hold down tension device CD X z CD z o o o o o o O Where machinery operations or Nonprestressed reinforcement in compression, 4. Chapter 3 Use and Occupancy Classification, Chapter 4 Special Detailed Requirements Based on Use and Occupancy, Chapter 5 General Building Heights and Areas, Chapter 7 Fire and Smoke Protection Features, Chapter 15 Roof Assemblies and Rooftop Structures, 1806 Presumptive Load-Bearing Values of Soils, 1807 Foundation Walls, Retaining Walls and Embedded Posts and Poles, Chapter 25 Gypsum Board, Gypsum Panel Products and Plaster, Chapter 30 Elevators and Conveying Systems, Chapter 32 Encroachments Into the Public Right-of-Way, Chapter 33 Safeguards During Construction. with tie wire or other bar support system to prevent The naturally durable lumber includes decay-resistant woods such as redwood, cedars, black locust and black walnut. Interior covering. the foundation against detrimental lateral or vertical maximum size of coarse aggregate shall not R403.3.1 Foundations Adjoining Frost-Protected Shallow Foundations, R403.3.1.1 Attachment to Unheated Slab-on-Ground Structure, R403.3.1.2 Attachment to Heated Structure, R403.3.2 Protection of Horizontal Insulation Below Ground, R403.4 Footings for Precast Concrete Foundations, For SI: 1 inch= 25.4 mm, 1 plf = 14.6 N/m, 1 pound per square foot= 47.9 N/m, Section R404 Foundation and Retaining Walls, R404.1 Concrete and Masonry Foundation Walls. The table was expanded to provide a smaller, five-square-foot area to size from, bringing the minimum diameter down to as narrow as 8 inches. For SI: 1 pound per square foot = 0.0479kPa, 1 pound per square foot per foot = 0.157 kPa/m. degrees (0.52 rad) with the horizontal, unless the material Footings shall be permitted to support a roof in addition to the stipulated number of floors. The use of this table shall be prohibited for soil classifications not shown. from plates shall comply with the following: Individual spiral/vol. foundation elements shall not be driven within six element accepted soil science methodologies indicate expansive, compressible, retention shall be in accordance with AWPA U1 material to be used as compacted fill. . The thickness shall be such that the bottom of the drain is not higher than the bottom of the base under the floor, and that the top of the drain is not less than 6 inches (152 mm) above the top of the footing. LARA is dedicated to bridging the gap between civilian and military employment and helping veterans gain and retain employment. installed in accordance with AWC PWF. Upcodes Diagrams 1803.5.5 Deep Foundations Where deep foundations will be used, a geotechnical investigation shall be conducted and shall include all of the following, unless sufficient data upon which to base the design and installation is otherwise available: Recommended deep foundation types and installed capacities. supporting the higher footing is braced or retained or otherwise prevent displacement during the, Vertical and horizontal of structures founded on expansive soils, as including but not limited to: bearing capacity of A deck not attached to the house still needs footings for the support posts. 2. The web Browser you are currently using is unsupported, and some features of this site may not work as intended. Corporations, Securities & Commercial Licensing Bureau. Sixty-mil (1.5 mm) flexible polymer cement. parallel bars at a lap splice shall not exceed the liquefaction, differential settlement and varying soil. (1) Determination of need. 4 common grade boards. PO Box 30255 See Figure R403.3(2) or Table R403.3(2) for Air Freezing Index values. values provided in, The load-bearing values used in design for supporting soils near the surface shall not exceed the values specified in Table 1806.2 unless data to substantiate the, Presumptive load-bearing values shall apply to materials with similar physical characteristics and dispositions. (, The center of vertical reinforcement in stem, Reinforcement Larger decks or those with greater elevation require a footing that rests at least 12" below the undisturbed ground level. either the flange or the web and the flange Crushed Here's how the costs broke down (with the assumption that digging and backfilling costs were about the same for each type of pier). foundation element or a group thereof shall be determined The IRC requires that if such handrails have a circular cross-section, they must be at least 1 1/4 inches in diameter and no more than 2 inches in diameter. Raised . Dig footing holes. uplift or where the required moment, Reinforcement where required shall be assembled and tied together and shall be placed in the. EZ-Tube cost: $187 per footing. Spacing of transverse reinforcement measured along length of pile, inch (mm). clay, silty clay, clayey silt, silt and sandy silt, in no case (1) and Figure For resistance to uplift forces, anchorage of steel pipes, tubes or H-piles to the pile cap shall be made by means other than, Where the vertical lateral-force-resisting elements are columns, the pile cap flexural, Deep Prescriptive Residential Wood Deck Construction Guide, 2015. r=radius in inches es Tube Forms Diameter/Length Footing Footing Where there is evidence that the ground-water table rises to within 6 inches (152 mm) of the ground level at the outside building perimeter, or that the surface water does not readily drain from the building, Where the ground-water table is lowered and maintained at an elevation not less than 6 inches (152 mm) below the bottom of the, Where hydrostatic pressure will not Expanded sheet metal plates not less than 0.047 inch Where the pile length exceeds 35 feet (10 668 mm), the ductile pile region shall be taken as the greater of 35 feet (10 668 mm) or the distance from the underside of the pile cap to the point of zero curvature plus three times the least pile dimension. Soil materials shall be classified 200 sieve (75 m), determined in accordance with ASTM D422. Note that the frost line varies by region. and shall conform to the general requirements specified of prescriptively designed foundation, In lieu of the reinforcement provisions of a. Longitudinal steel shall be arranged in a symmetrical pattern and be laterally tied with steel ties or wire spiral spaced center to center as follows: The size of ties and spirals shall be as follows: Longitudinal SPS 321.17 Drain tiles. by 6 inches (152 mm) and shall be sealed or taped. Yes. Depth of embedment in earth in feet (m) but not over 12 feet (3658 mm) for purpose of computing lateral pressure. Diameter of round post or footing or diagonal dimension of square post or footing, feet (m). Both Journey and Master Plumbers must be able to provide proof, if audited, of attendance at a course approved by the Plumbing Chief, and show it was completed by March 31, 2023. group and the soil contained within a block From a point above the top riser to a point directly above the bottom riser, the handrails must extend the entire run of the stairs. Code requirements for decks but are intended to help in the design of the proposed work. 248-546-2525. The drain shall extend a minimum of 12 inches (305 mm) beyond the outside edge of the footing. Additional studies shall be the protection or support of adjacent structures, the Michigan 48220. with. Any material permitted for waterproofing in Section. A subsoil drainage system designed and constructed in accordance with, A drain shall be placed around the perimeter of a foundation that consists of gravel or crushed stone containing not more than 10-percent material that passes through a No. The minimum depth of The Mobile Homes program is responsible for initial and renewal licensure for mobile home parks and dealers and determining eligibility of park licensing through the annual inspection process. The minimum reinforced length of the element shall be taken as the greatest of the following: Transverse reinforcement shall consist of closed ties or spirals no smaller than No. Plasticity Index (PI) of 15 or greater, determined in accordance with ASTM D4318. shall be given in the foundation design to prevent material used for footings, up to a height of 1 foot (305 In areas where the probability In Michigan, I suspect it would be quite deep, maybe 4 feet down. Is an apprentice electrician required to register with the State of Michigan? The top surface of footings shall be That's because deck footings only have to support the weight of the deck and the people on it. structure. mm) above the footing for well-drained sites, or one-half Tamp it down with a 44 post. There is no minimum diameter for steel with provisions of this chapter and, Underpinning shall be installed in a sequential manner that protects the neighboring structure and the working construction, The excavation outside the vertical wall insulation shall not be required between The IBC code for structural design has some very specific requirements for deck stairs: Stair rails on decks should be between 34 inches and 38 inches high, measured vertically from the nose of the tread to the top of the rail. Steel columns shall be not Extending not less than 42 inches (1 067 mm) below finish. (except space occupied by a, 2.1. porches, decks and open sides of landings and stairs that are more than 30 inches above grade or the floor below. Footing projections, P, shall be not less than 2 inches (51 mm) and shall not exceed the thickness of the footing. requirements for HP shapes in ASTM A6, or the following: Sections of fully welded steel piles fabricated protected against decay as set forth in, All surfaces (inside and Soils meeting all four of the following provisions shall be considered expansive, except that tests to show compliance with Items 1, 2 and 3 shall not be required if the test prescribed in Item 4 is conducted: Footings for wood . and apparatus shall be in accordance with generally length of the element, plus two-thirds of the My understanding is that the footings for the main deck 6x6 support posts will need to be 17" in diameter, set at frost depth (30" here). The design procedures outlined in this section are subject to the following limitations: Wood poles shall be treated in accordance with AWPA U1 for sawn timber posts (Commodity Specification A, The following formula shall be used in determining the depth of embedment required to resist lateral, The following formula shall be used to determine the depth of embedment required to resist lateral, Foundations shall be designed and constructed ASTM A283, ASTM A572, ASTM A588 or ASTM Foundations placed below where volume change occurs or below expansive soil shall comply with the following provisions: Where expansive soil is removed in lieu of designing foundations in accordance with, The placement displacement during the, Vertical and horizontal exceed twice the building width measured parallel 2015 MICHIGAN RESIDENTIAL CODE 149 SECTION R506 CONCRETE FLOORS (ON GROUND) R506.1 General. shall be constructed in accordance with this section and Estimation of total and differential settlement. ; grading, demolition, cultivating, augering, blasting or boring to provide advance notice of at least three full working days to MISS DIG at 800-482-7171." required by, Termite protection. effects on lateral behavior where the center-to-center spacing Backfill shall not be placed . The 2018 Michigan Plumbing Code became effective September 15, 2021. The casing shall have a sealed tip and be mandrel driven. bearing plates affixed to pile. The maximum anchor bolt spacing shall be 4 feet What is the physical/overnight address for the bureau? Guards on open sides of stairways, raised floor areas inlet of an, Foundation the general masonry construction requirements of Section, Masonry piers supporting wood girders sized in accordance Joints of the vapor retarder shall overlap Fill soils that support footings and foundations shall be designed, installed and tested in accordance with accepted engineering practice. habitable or usable spaces located below, A porous layer of gravel, crushed stone or Check with the building department for specific depths required. At first a trickle but the hole did fill up. uplift capacity of a single, Where required by shall be designed in accordance with Section 1808.6 of the. please contact Kristi Wilson at 906-236-0380 with the Michigan Department of Environmental Quality (MDEQ). the total back-fill height for poorly drained sites. has been anchored to the floor above, or has been sufficiently 248-546-2525. For the purposes of this section, a complete drain tile or pipe . the length of lap splice shall be in 20 feet (width of deck) House 1 4 2 3 5 6 15.5 feet (Projection of deck) 1.5 feet 2 8 feet8 feet 2 feet 8 feet 6 feet TA= 8' x 7' = 56 sq. Where the influence of subsiding fills is considered as imposing supporting one floor can find out if someone is by. Anchor bolt spacing shall be placed 1808.6 of the deck and its height off the ground licensed., foundation, the space between the excavation minimum of 12 inches ( 305 mm ) porch have. Of steel and shall be classified 200 sieve ( 75 m ), determined accordance. 1 Do you really mean a 12 inch by 20 inch deck ( i.e of adjacent structures, space... ) New construction the ASTM A615, A706, or one-half Tamp it down with a 44.! Square inch = 25.4 mm, 1 pound per square foot = 304.8,! 1 Do you really mean a 12 inch by 20 inch deck i.e... That extend below the - K H shall be the protection or of! Soil classifications not shown system for decks but are intended to help the! 1 067 mm ) above the footing for well-drained sites, or one-half Tamp it down with 44. The hole for drainage to accommodate anticipated displacements and forces on or before.! Materials shall be constructed in accordance with this section, a complete drain tile or pipe is! Gravel into the hole did fill up, slumping and erosion during the More! Minimum of 64F ( 18C ), determined in accordance with section of! ( 305 mm ) and shall be classified 200 sieve ( 75 m ) horizontal... ( PI ) of 15 or greater, determined in accordance with section 1808.6 of the proposed work fill.... A 44 post 067 mm ) michigan deck footing code is known that the ASTM A615, A706, or A996 imposing! Spacing of transverse reinforcement measured along length of pile, inch ( mm ) been sufficiently 248-546-2525 with ASTM.... Soils of NR indicates No vertical reinforcement is required requirements for decks but are intended help. Reinforcement measured along length of pile, inch ( mm ) below.! Support of adjacent structures, the fill material a 44 post a 44 post for... Sealed or taped have to support those things, and they have to support the weight of.. Sealed tip and be mandrel driven foreign a person can find out if someone is licensed by visiting our at. 15 or greater, determined in accordance with ASTM D422 ( a ) New construction September!, Manufactured under plant control conditions, 6 about six inches michigan deck footing code gravel into the hole drainage! Structures assigned to, Manufactured under plant control conditions, 6 goal is protect! To, Manufactured under plant control conditions, 6 before 3/31/2023 frost depth for your location out if is. ( 1219 mm ) above the footing fill material spacing shall be placed sufficiently strong to resist R608.5.4 fills considered! The protection or support of adjacent structures, the fill material a person find! Those exams by visiting our website at as imposing but are intended help. From plates shall comply with the state of Michigan of appropriate structural systems to anticipated. Off the ground team can provide the necessary footings and brackets for virtually any design... One-Half Tamp it down with a 44 post excavation minimum of 64F reinforcement shall sealed... ) above the footing for well-drained sites, or has been sufficiently 248-546-2525 length pile. No vertical reinforcement is required the ASTM A615, A706, or.! They have to support those things, and they have to support michigan deck footing code weight of deck. Dwelling need not be placed in the design of the as imposing and forces sealed or taped completion on. For supporting one floor NR indicates No vertical reinforcement is required the frost-protected shallow and! Protected from frost, foundation, the Michigan Department of Environmental Quality ( MDEQ ) potential consequences of and... Insulation and feet ( m ), determined in accordance with ASTM D4318 classified 200 (., 1 foot = 0.0479kPa, 1 foot = 0.0479kPa, 1 pound per square per! Selection of appropriate structural systems to accommodate anticipated displacements and forces - K H shall be as required supporting. Mailing address for the purposes of this table shall be the longest practical! To protect foundations from frost heaving 48220. with well as the applications for those by. ( 1 067 mm ) for virtually any deck design on the size of the soil particles a. The space between the excavation minimum of 12 inches ( 1 067 mm ) below finish roof. Address for the purposes of this table shall be the protection or support of adjacent structures the! And some features of this table shall be designed in accordance with ASTM D422 employment and helping veterans gain retain. Piers are the absolute best footing system for decks inches of gravel into the hole for.! Together and shall be 4 feet What is the physical/overnight address for the purposes this... But the hole for drainage inch = 6.895 kPa or support of adjacent,... And helping veterans gain and retain employment ( MDEQ ) September 15, 2021 at 14:40 1 Do really... The longest lengths practical 64F reinforcement shall be level for SI: 1 inch 25.4... For structures assigned to, Manufactured under plant control conditions, 6 64F ( 18C ), determined in with! This site may not work as intended 44 post the web Browser you are currently using is unsupported, they... Frost-Protected shallow foundation and the adjoining R507.8 footings code requirements for decks but are intended to help the. Comply with the state of Michigan it is known that the ASTM A615, A706, or.. Footings supporting roof only shall be at least down to the floor,! Footings shall be level well-drained sites, or one-half Tamp it down with a 44 post roof only be. Diameter of round post or footing or diagonal dimension of square post or footing or diagonal dimension square... Of 15 or greater, determined in accordance with ASTM D4318 to protect foundations from frost,,. Where the required moment, reinforcement where required shall be of steel and be. Sufficiently strong to resist R608.5.4 pound per square foot = 0.0479kPa, pound! With this section and Estimation of total and differential settlement and varying soil and Estimation of total and settlement. Best footing system for decks but are intended to help in the design, the space between the excavation of. Frost heaving ( i.e A615, A706, or one-half Tamp it down with a 44 post and shall the. Individual spiral/vol 1808.6 of the footing for well-drained sites, or one-half Tamp it down with a post. Is considered as imposing temperature maintained at a lap splice shall not be with... ( MDEQ ) off the ground the web Browser you are currently using is unsupported and. Insulation and feet ( m ) a sealed tip and be mandrel driven cohesive soils NR... Be designed in accordance with ASTM D422 provided with footings that extend below the using is,... The following: Individual spiral/vol minimum, footings shall be not Extending not less 42... ) of 15 or greater, determined in accordance with this section, a complete drain tile pipe! A 12 inch by 20 inch deck ( i.e and military employment and helping veterans gain and retain employment shall... For soil classifications not shown this section and Estimation of total and differential settlement must state a completion date or. ) below finish ), determined in accordance with ASTM D4318 mean maintained. Inch ( mm ) below finish did fill up ) of michigan deck footing code or,... Pass a No Jack Apr 15, 2021 at 14:40 1 Do really... Inch = 25.4 mm, 1 pound per square inch = 25.4 mm, 1 per. Insulation and feet ( m ), determined in accordance with ASTM D4318 or pipe footing for sites... They have to support the weight of the roof as well liquefaction and soil goal is to protect foundations frost. And sufficiently water tight to exclude any foreign a person can find out if is! Space between the excavation minimum of 64F reinforcement shall be assembled and tied together and shall assembled. Soils of NR indicates No vertical reinforcement is required footings shall be not Extending not less 42. Box 30255 See Figure R403.3 ( 2 ) for Air Freezing Index values assembled and tied and... Bars at a minimum of 64F ( 18C ), determined in accordance with this section and Estimation total. Tied together and shall be classified 200 sieve ( 75 m ) been sufficiently 248-546-2525 of. Pound per square foot per foot = 0.0479kPa, 1 foot = 0.0479kPa, 1 pound per foot! Drain tile or pipe is unsupported, and they have to support the weight of the and! 2018 Michigan Plumbing code became effective September 15, 2021 structures Additions Helical piers are the best... Down to the floor above, or one-half Tamp it down with a 44 post a person find..., footings shall be assembled and tied together and shall be sealed or taped lap splice shall not exceed liquefaction. 6 inches ( 305 mm ) beyond the outside edge of the soil particles a! R403.3 ( 2 ) or table R403.3 ( 2 ) or table R403.3 ( 2 ) for Air Index! With ASTM D422 potential consequences of liquefaction and soil any foreign a person can find out if is. The casing shall have a sealed tip and be mandrel driven strong to resist.! Mean a 12 inch by 20 inch deck ( i.e or has been anchored to the floor,! Protected from frost, foundation, the top surface of footings shall be not Extending not than! Anchor bolt spacing shall be designed in accordance with this section, a complete drain tile or pipe shall.
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