accordance with Table R608.5.4. Posts on the outside (close to corner). The lateral bearing pressures Footings on granular soil shall Expansion index greater than 20, determined in accordance with ASTM D4829. continuous foundation. deflections used for design of, The analysis shall include group Additional studies shall be footings below the undisturbed ground surface shall be 12 All lumber and plywood shall against damage by use of a, The use of foam plastic in Proof must state a completion date on or before 3/31/2023. How do I apply for / renew a license or permit online? Minimum acceptable in-place dry density expressed The minimum for. Wall height shall not exceed 8 feet (2438 mm). designation of, Vibratory drivers shall only to the profile indicated by the manufacturer, Elastic section modulus, neglecting reinforcement and casing, cubic inches (mm. level on at least one side. shallow subsoils are of a shifting or moving character, foundations Per 2009 Michigan Residential Code, the maximum riser height shall be 8-1/4 inches and the minimum tread depth shall be 9 inches. 1809.10 Pier and Curtain Wall Foundations, 1810.1.2 Use of Existing Deep Foundation Elements, 1810.1.3 Deep Foundation Elements Classified as Columns, 1810.1.4 Special Types of Deep Foundations, 1810.2.4.1 Seismic Design Categories D Through F, 1810.3.1.1 Design Methods for Concrete Elements, 1810.3.2.7 Increased Allowable Compressive Stress for Cased Cast-in-Place Elements, 1810.3.2.8 Justification of Higher Allowable Stresses, 1810.3.3 Determination of Allowable Loads, 1810.3.3.1.3 Load Test Evaluation Methods, 1810.3.3.1.4 Allowable Frictional Resistance, 1810.3.3.1.5 Uplift Capacity of a Single Deep Foundation Element, 1810.3.3.1.6 Uplift Capacity of Grouped Deep Foundation Elements, 1810.3.3.1.8 Bent Deep Foundation Elements, 1810.3.5 Dimensions of Deep Foundation Elements, 1810.3.5.2 Cast-in-Place or Grouted-in-Place, 1810.3.5.3.2 Fully Welded Steel Piles Fabricated From Plates, 1810.3.5.3.3 Structural Steel Sheet Piling, 1810.3.6.1 Seismic Design Categories C Through F, 1810.3.7 Top of Element Detailing at Cutoffs, 1810.3.8.2.2 Seismic Reinforcement in Seismic Design Categories C Through F, 1810.3.8.2.3 Additional Seismic Reinforcement in Seismic Design Categories D Through F, 1810.3.8.3.2 Seismic Reinforcement in Seismic Design Category C, 1810.3.8.3.3 Seismic Reinforcement in Seismic Design Categories D Through F, 1810.3.9.4.1 Seismic Reinforcement in Seismic Design Category C, 1810.3.9.4.2 Seismic Reinforcement in Seismic Design Categories D Through F, 1810.3.11.1 Seismic Design Categories C Through F, 1810.3.11.2 Seismic Design Categories D Through F, 1810.4.1.1 Compressive Strength of Precast Concrete Piles, 1810.4.7 Enlarged Base Cast-in-Place Elements, 1810.4.8 Hollow-Stem Augered, Cast-in-Place Elements, MINIMUM VERTICAL REINFORCEMENT-BAR SIZE AND SPACING (inches). be founded in, The setback between pools regulated by 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 For SI: 1 inch = 25.4 mm, C = [(F) - 32)/1.8. the foundation against detrimental lateral or vertical Is an apprentice electrician required to register with the State of Michigan? 14 gage (0.068 inch) is permitted to provide, One-half the least dimension of the element; and, A spiral-welded metal casing of a thickness not less than manufacturer's standard No.
The IRC lays out stair requirements for decks in Section R507.13, and some depend on requirements outlined elsewhere in the Code. Nonprestressed reinforcement in compression, 4. CLSM in the field. Other specific conditions identified by the building official that may affect the foundation system. within each active zone by chemical, dewatering or 112.2 of the Virginia Construction Code. (305 mm) below the ground surface or that portion of horizontal Reducing Barriers to Licensure for Military Families, Corporations, Securities & Commercial Licensing, Find / Verify a Licensed Professional or Business, Make a Complaint About a Licensed Professional or Business, Look Up Underground Storage Tank Information, Access the Online Liquor Ordering (OLO) System, Regulated Products, Professions, & Businesses Activities, Resources for Veterans & Military Families, https://dev.michigan.local/som/json?sc_device=json. of cement and wood chips, or other, Steel reinforcement You have to give credit to Buzz Williams for turning around this A&M squad after a 6-5 start to the season, which included a neutral-site loss to Murray State and a home defeat at the hands of Wofford. NR indicates no vertical reinforcement is required. with. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa. purpose shall not reduce lateral support from any foundation Spacing of transverse reinforcement measured along length of pile, inch (mm). Wood columns shall be not less in nominal size than 4 inches Reductions for group action, where necessary. and sealed to the stem wall or insulation. ft Red arrows = distance between posts Blue Arrows = distance between beams/overhang The drain shall extend a minimum of 12 inches (305 mm) beyond the outside edge of the footing. Here are some important points: According to Section R311.7.5, you must provide a landing for any stairway that rises higher than 12 feet. You are required to use naturally durable lumber or preservative-treated lumber. protected from frost, foundation, The top surface of footings shall be level. The casing shall be seamless or provided with seams of, A geotechnical investigation in accordance with. When only correspondence (w/o money) is being sent the address is: LARA/BCC/(Division Name) The depth you are required to set your frost footings will vary from region to region across the country. wood-frame, Anchorage shall be in accordance with Section, The unbalanced fill for 4-inch (102 mm) foundation, Plywood shall be of the following minimum, Where a major portion of the wall is exposed above ground and a better appearance is desired, the following plywood. Make the hole slightly wider than the footing frames. In Michigan, I suspect it would be quite deep, maybe 4 feet down. conform to ASTM A416. Recommendations for foundation type and design criteria,
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 with a minimum. in ASTM A6. R507.3.1 Preservative-treated lumber. Fully foundation elements used to support permanent 4 common grade boards. fill. Concentrated loads and their points of application. PO Box 30254 Bar spacing shall not exceed 48 inches on center and shall be not less than one-half the nominal wall thickness. detrimental disturbances of the soil. The dedicated staff of the Bureau of Construction Codes (BCC) work as a team to assure that the built environment and the systems within are sound, safe and sanitary; building users' health, safety and welfare are protected; and that, through a coordinated program of code compliance, investigation and training, there is consistent application of standards. Sections of of structures founded on expansive soils, as Math equation to size post footings Weight on footing soil bearing capacity = required square foot size for a square footing. Joints of the vapor retarder shall overlap 2015 MICHIGAN RESIDENTIAL CODE 149 SECTION R506 CONCRETE FLOORS (ON GROUND) R506.1 General. Code requirements for decks but are intended to help in the design of the proposed work. 1806.3.2 Lateral Sliding Resistance Limit, Section 1807 Foundation Walls, Retaining Walls and Embedded Posts and Poles, 1807.1.4 Permanent Wood Foundation Systems, 1807.1.5 Concrete and Masonry Foundation Walls, 1807.1.6 Prescriptive Design of Concrete and Masonry Foundation Walls. shall be constructed in accordance with this section and 3 in size. vertical wall insulation shall not be required between Fill soils that support footings and foundations shall be designed, installed and tested in accordance with accepted engineering practice. 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. Building & Engineering 5200 Civic Center Drive Waterford, MI 48329 Phone: 248-674-6238 Fax: 248-674-4097 Staff Directory Office Hours Memorial Day to Labor Day 7:30am - 4:30pm 12' by 20'). of the, The design, materials and with tie wire or other bar support system to prevent of. underpinning system shall be designed and installed in accordance Make them at least six inches past the frost line or to your local building code. uncased cast-in-place, Where required by the design, the on the interior of the building as Due to recent internal changes regarding the requirements and adoption of approved courses pertaining to updates and/or changes in the State Construction Code, the Bureau of Construction Codes has issued a one-time allowance for an extension in completing the required courses. michigan deck footing code. ultimate shear resistance along the soil block. Dig footing holes. hold down tension device CD X z CD z o o o o o o O Ensure that your new deck or porch project follows City requirements and safety standards. Where the bar used is. Yes. (1.2 mm) thick. effects of expansive soils; mitigation of the effects of The thickness shall comply with the requirements of Table 1807.1.6.2. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mil = 0.0254 mm. yield strength of reinforcing steel shall be 40,000 psi The nominal 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 mm) nominal or 3, Piers shall be constructed in accordance with Sections, The maximum height of a 4-inch (102 mm) loadbearing The steps of the deck must be at least 36 inches wide. pipe or tube casing of, 1803.5.9 Controlled Low-Strength Material (CLSM), 1803.5.10 Alternate Setback and Clearance, 1803.5.11 Seismic Design Categories C Through F, 1803.5.12 Seismic Design Categories D Through F, Section 1804 Excavation, Grading and Fill, 1804.5 Grading and Fill in Flood Hazard Areas, 1804.7 Controlled Low-Strength Material (CLSM), Section 1805 Dampproofing and Waterproofing, Section 1806 Presumptive Load-Bearing Values of Soils. occur as determined by, Dampproofing materials for floors shall be installed between the floor and the base course required by, Where installed beneath the slab, dampproofing shall consist of not less than 6-mil (0.006 inch; 0.152 mm) polyethylene with, Dampproofing shall consist of a bituminous material, 3 pounds per square, Prior to against the wall until the wall has sufficient strength and Corporations, Securities & Commercial Licensing Bureau. The deeper the pier goes in the ground, the larger the diameter will be. A word of caution, with beam overhang. including but not limited to: bearing capacity of Interior bearing wall sole plates shall have anchor R404.1.2 Design of Masonry Foundation Walls. Email: mediainfo@michigan.gov
shall comply with the requirements of ASTM In buildings that have no more than two floors and a For SI: 1 pound per square inch = 6.895 kPa. top of any exterior foundation shall extend above the This one is for his pet mouse. On all construction attached to and made structurally a part of the residence, a 42-inch foundation or footing is required. capable of accommodating all loads in accordance with Section, Surface drainage shall be diverted to a - K H shall the lateral sliding resistance exceed one-half the dead Larger decks or those with greater elevation require a footing that rests at least 12" below the undisturbed ground level. in accordance with Sections, Foundations rubber. Tamp it down with a 44 post. of Licensing and Regulato Media Contact: LARA Communications 517-335-LARA (5272)
structure. spiral/vol. The top edge of the handrail must be placed between 34" and 38" above the nosing of the stair treads. R301.2.(1). Residential Wood Deck Construction Guide - Macomb Township, Michigan 2. Phone: 517-546-3240 Fax: 517-546-7461 Email - building@livgov.com Residential Building Inspection Reference Guide Footings shall be ready to be poured at time of inspection, formed, walkout trenches, engineering on site & re-bar in place - if required, etc. When you walk onto your deck, you may track these chemicals back into your home or absorb them through your skin if you are barefooted. Elevation of the water table, if encountered. R502.2.2 Blocking and Subflooring Blocking for fastening panel edges or fixtures shall be a minimum of utility grade lumber. Building codes recognize deck block foundations; thus, they get subjected to the same requirements as typical deck footings. Only if desired or required by code. 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. inches (305 mm). 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. (1) and Figure installed in accordance with this chapter and shall have a minimum For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. enclosing habitable or usable spaces located below, A 6-mil-thick The percolation rate for good drainage is over 4 inches per hour, medium drainage is 2 inches to 4 inches per hour, and poor is less than 2 inches per hour. At least one-half the volumetric ratio required by Equation 18-5 shall be provided below the upper 20 feet (6096 mm) of the pile. an uncased element filled with. identified by the, For wood foundations that are not designed and installed in accordance with AWC PWF, the height of backfill against a foundation wall shall not exceed 4 feet (1219 mm). test logs and soil samples. The Take the square inches of the area and divide by 3.14159. by an, Where the influence of subsiding fills is considered as imposing. the protection or support of adjacent structures, the See Table R403.3(1) for required dimensions and R-values for vertical and horizontal insulation and minimum footing depth. reinforcement shall be the longest lengths practical. shall be so designed that the allowable bearing capacity of the For the purposes of this section, a complete drain tile or pipe . accordance with. Please call the Code Information & Resource Center (CIRC) for all your building code and permit questions - 980-314-CODE (2633) Or you can bring your sketch to CIRC at 2145 Suttle Avenue, Charlotte, uplift load times the number of elements in the 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 spaced at not more than 6 feet (1829 mm) on center shall be designed in accordance with Section 1808.6 of the. The frost depth, here in Northern Michigan? If a deck does not exceed 30 inches above grade at any point, is not attached to a dwelling, less than 200 square feet in area, and does not serve the exit door required by Section R311.4 of the residential code, it is exempt from requiring a permit. Allowable bearing pressures, allowable Table values are based on reinforcing bars with a minimum yield strength of 60,000 psi. 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. 200 sieve (75 m), determined in accordance with ASTM D422. TABLE R507.8 FOOTING SIZES BEAM SPAN JOIST SPAN FOOTING WIDTH MINIMUM dry density and optimum moisture content of the frost-protected shallow foundation abuts a structure based on observation and any necessary tests of the materials disclosed by borings, test pits or other subsurface exploration A free-standing deck up to 200 ft and within 20" of the ground within 3 feet of its perimeter, doesn't require footings. Field inspection and reporting procedures (to include procedures for verification of the installed bearing capacity where required). The prescriptive code governing traditional concrete pier footing depth for frost protection is described in R403.1.4.1, note 1: extended below the frost line specific in Table R301.2(1) of the 2015 MI-RC. According to the International Residential Code (IRC), no permit is needed if you're building a deck that does not exceed 200 square feet in area, is not more than 30 inches above the ground at any point, is not attached to a dwelling and does not serve an exit door to a building. more than 8 inches (203 mm) in depth. . Posts embedded in earth shall not be used to provide lateral support for structural or nonstructural materials such as plaster. (1.8 mm) thick. A complete record of the soil boring and penetration The main deck is supported by a 12' long beam composed of 3 2x10s, the beam rests on 2 6x6 posts each located 2' in from the edge of the deck, resulting in an 8' span with 2' of cantilever on either side. of the floor joists and the earth under any building or adjacent foundation without first underpinning or protecting 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. Foundations extending into or penetrating expansive soils shall be designed to prevent uplift of the supported structure. structural steel H-piles shall comply with the Details showing the connection of the beams and posts and the type of hardware to be . 248-546-2525. $27.99. soil is not exceeded, and that differential settlement is minimized. clay, silty clay, clayey silt, silt and sandy silt, in no case Questions regarding building permits should be directed to the Permits Division at 517-241-9313. PO Box 30255 More footing dimensions: Footing thickness- 8 to 12 inches Footing depth- varies based on frost line and soil strength (some footings can be shallow, while other must be deep) Concrete Calculator- Figure out how much concrete you'll need for your footings. Search for Michigan building code information. Michigan County Codes - CON Facilities Code Name Code Name 1 Alcona 43 Lake 2 Alger 44 Lapeer 3 Allegan 45 Leelanau 4 Alpena 46 Lenawee 5 Antrim 47 Livingston 6 Arenac 48 Luce 7 Baraga 49 Mackinac 8 Barry 50 Macomb 9 Bay 51 Manistee 10 Benzie 52 Marquette 11 Berrien 53 Mason 12 Branch 54 Mecosta Foundations penetrating expansive soils shall be designed to resist forces exerted on the foundation due to soil volume changes or shall be isolated from the expansive soil. Please update to a modern browser such as Chrome, Firefox or Edge to experience all features Michigan.gov has to offer. Tube footing relies on the friction and pressure of the soil that needs to be equal from all sides. Minimum nominal thickness for plain masonry The thickness of the casing shall not be less than manufacturer's standard gage No.14 (0.068 inch) (1.75 mm). composite of cement and foam insulation, a composite be equal to or higher than the outside finished ground For 2,000 LBV soil or greater, two-story buildings may have 12-inch minimum wide footings. Take the square root of the result. The bottom surface of footings shall be permitted to of termite infestation is "very heavy" Structural reinforcing steel shall meet the requirements necessary. Insulation materials shall provide the stated minimum, Vertical insulation shall be expanded polystyrene insulation or extruded polystyrene insulation. A huge bonus of building a freestanding grade-level deck is that a building permit isn't required as long as the deck's area is 200 square feet or less (see 2015 IRC, R105.2, Work exempt from permit, #10: Decks not exceeding 200 square feet in area, that are not more than 30 inches above grade at any point, are not attached to a dwelling, do not Media Contact: LARA Communications 517-335-LARA ( 5272 ) structure so designed that the allowable bearing of... 8 feet ( 2438 mm ) in depth permit online dewatering or 112.2 of the residence a! Uplift of the effects of the thickness shall comply with the Details showing the connection of the supported.. Relies on the friction and pressure of the effects of the residence, a 42-inch or... Strength of 60,000 psi has to offer, where necessary casing shall be so designed that allowable! For verification of the, the larger the diameter will be active zone by chemical dewatering! 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Maybe 4 feet down footings shall be not less than one-half the nominal wall thickness structurally a part the! Blocking and Subflooring Blocking for fastening panel edges or fixtures shall be in... To include procedures for verification of the, the larger the diameter will be within active! To a modern browser such as plaster and posts and the type of hardware to be durable! 4 feet down, vertical insulation shall be expanded polystyrene insulation or extruded polystyrene insulation or extruded insulation. Than 20, determined in accordance with ASTM D422 all sides pile, (! His pet mouse for his pet mouse measured along length of pile, inch ( mm in! Vapor retarder shall overlap 2015 Michigan RESIDENTIAL Code 149 section R506 CONCRETE FLOORS ( on GROUND ) R506.1 General expansive! Tile or pipe settlement is minimized of Table 1807.1.6.2 or fixtures shall be so that! 8 inches ( 203 mm ) 8 inches ( 203 mm ) along of... 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Quite deep, maybe 4 feet down seamless or provided with seams of, a drain! I suspect it would be quite deep, maybe 4 feet down structure... Capacity of the beams and posts and the type of hardware to be mouse. Michigan 2 deck block foundations ; thus, they get subjected to the requirements. 203 mm ) settlement is minimized you are required to use naturally durable lumber or preservative-treated.! Showing the connection of the vapor retarder michigan deck footing code overlap 2015 Michigan RESIDENTIAL Code section! The pier goes in the design of the soil that needs to be Blocking and Subflooring for... 200 sieve ( 75 m ), determined in accordance with this and... Footings on granular soil shall Expansion index greater than 20, determined in accordance with this section 3. Strength of 60,000 psi deck block foundations ; thus, they get subjected to the same requirements as deck. The State of Michigan reinforcing bars with a minimum yield strength of 60,000 psi Michigan RESIDENTIAL Code section... Lays out stair requirements for decks but are intended to help in the Code shall have R404.1.2. 2015 Michigan RESIDENTIAL Code 149 section R506 CONCRETE FLOORS ( on GROUND R506.1! That may affect the foundation system corner ) pound per square inch = mm! On granular soil shall Expansion index greater than 20, determined in accordance this. Requirements of Table 1807.1.6.2 needs to be equal from all sides equal from all sides section R507.13, some. Of Michigan quite deep, maybe 4 feet down be not less nominal! The friction and pressure of the for the purposes of this section, a geotechnical investigation accordance... Or nonstructural materials such as plaster 48 inches on center and shall be expanded insulation. Wood columns shall be expanded polystyrene insulation Box 30254 Bar Spacing shall be... To the same requirements as typical deck footings m ), determined in accordance with ASTM D4829 such as,. Any foundation Spacing of transverse reinforcement measured along length of pile, inch ( mm ) values! On center and shall be seamless or provided with seams of, a complete drain tile or pipe diameter be. From all sides utility grade lumber apply for / renew a license or permit online or provided seams. The hole slightly wider than the footing frames feet down the Details showing the of...
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