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Home My WebLink Abouta0-1 Sched Notes• R310.2.1 : MINIMUM OPENING AREA REQUIRING THAT NET OPENING NOT LESS THAN 5.7 SQ. FT., MINIMUM OPENING HEIGHT NOT LESS THAN 24”, MINIMUM WIDTH NOT LESS 20”. THE CLEAR OPENING HEIGHT (SILL) FROM FINISHED FLOOR NOT MORE THAN 44”.• R311.2 : EGRESS DOORREQUIRED TO BE LABEL ON DRAWINGS. PLEASE ADD NOTATION. CLEAR OPENING WIDTH SHALL NOT BE LESS THAN 32”AND SHALL NOT BE LESS THAN 78”IN CLEAR HEIGHT.• R311.3 : LANDINGSHALL BE REQUIRED ON BOTH SIDE OF THE EGRESS DOOR, WIDTH SHALL BE NO LESS THAN THE DOOR SERVED, AND MEASURING NO LESS THAN 36”IN THE DIRECTION OF TRAVEL. • OPENINGS BETWEEN GARAGE AND DWELLING SHALL HAVE MIN. 20 MINUTE RATING AND EQUIPPED WITH SELF-CLOSING DEVICE.• R311.3.1 FLOOR ELEVATIONSAT THE REQUIRED EGRESS DOORS LANDINGS OR FINISHED FLOORS AT THEREQUIRED EGRESS DOOR SHALL BE NOT MORE THAN 11/2 INCHES (38 MM) LOWER THAN THE TOP OF THE THRESHOLD.1. EXCEPTION: THE LANDING OR FLOOR ON THE EXTERIOR SIDE SHALL BE NOT MORE THAN 73/4 INCHES (196 MM) BELOW THE TOP OF THE THRESHOLD PROVIDED THE DOOR DOES NOT SWING OVER THE LANDING OR FLOOR.2. WHERE EXTERIOR LANDINGS OR FLOORS SERVING THE REQUIRED EGRESS DOOR ARE NOT AT GRADE, THEY SHALL BE PROVIDED WITH ACCESS TO GRADE BY MEANS OF A RAMP IN ACCORDANCE WITH SECTION R311.8 OR A STAIRWAY IN ACCORDANCE WITH SECTION R311.7.R311.7.1 WIDTHSTAIRWAYS SHALL BE NOT LESS THAN 36 INCHES (914 MM) IN CLEAR WIDTH AT ALL POINTS ABOVE THE PERMITTED HANDRAIL HEIGHT AND BELOW THE REQUIRED HEADROOMHEIGHT. HANDRAILS SHALL NOT PROJECT MORE THAN 41/2 INCHES (114 MM) ON EITHER SIDE OF THE STAIRWAY AND THE CLEAR WIDTH OF THE STAIRWAY AT AND BELOW THEHANDRAIL HEIGHT, INCLUDING TREADS AND LANDINGS, SHALL BE NOT LESS THAN 311/2 INCHES (787 MM) WHERE A HANDRAIL IS INSTALLED ON ONE SIDE AND 27 INCHES (698MM) WHERE HANDRAILS ARE PROVIDED ON BOTH SIDES.EXCEPTION: THE WIDTH OF SPIRAL STAIRWAYS SHALL BE IN ACCORDANCE WITH SECTION R311.7.10.1.R311.7.2 HEADROOMTHE HEADROOM IN STAIRWAYS SHALL BE NOT LESS THAN 6 FEET 8 INCHES(2032 MM) MEASURED VERTICALLY FROM THE SLOPED LINE ADJOINING THE TREAD NOSING OR FROMTHE FLOOR SURFACE OF THE LANDING OR PLATFORM ON THAT PORTION OF THE STAIRWAY.EXCEPTIONS:1. WHERE THE NOSINGS OF TREADS AT THE SIDE OF A FLIGHT EXTEND UNDER THE EDGE OF A FLOOR OPENING THROUGH WHICH THE STAIR PASSES, THE FLOOROPENING SHALL BE ALLOWED TO PROJECT HORIZONTALLY INTO THE REQUIRED HEADROOM NOT MORE THAN 43/4 INCHES (121 MM).2. THE HEADROOM FOR SPIRAL STAIRWAYS SHALL BE IN ACCORDANCE WITHSECTION R311.7.10.1.R311.7.3 VERTICAL RISEA FLIGHT OF STAIRS SHALL NOT HAVE A VERTICAL RISE LARGER THAN 151 INCHES BETWEEN FLOOR LEVELS OR LANDINGS.R311.7.5.2 TREADSTHE TREAD DEPTH SHALL BE NOT LESS THAN 10 INCHES (254 MM). THE TREAD DEPTH SHALL BE MEASURED HORIZONTALLY BETWEEN THE VERTICAL PLANES OF THE FOREMOSTPROJECTION OF ADJACENT TREADS AND AT A RIGHT ANGLE TO THE TREAD'S LEADING EDGE. THE GREATEST TREAD DEPTH WITHIN ANY FLIGHT OF STAIRS SHALL NOT EXCEED THESMALLEST BY MORE THAN 3/8 INCH (9.5 MM).R311.7.5.2.1 WINDER TREADSWINDER TREADS SHALL HAVE A TREAD DEPTH OF NOT LESS THAN 10 INCHES (254 MM) MEASURED BETWEEN THE VERTICAL PLANES OF THE FOREMOST PROJECTION OFADJACENT TREADS AT THE INTERSECTIONS WITH THE WALKLINE. WINDER TREADS SHALL HAVE A TREAD DEPTH OF NOT LESS THAN 6 INCHES (152 MM) AT ANY POINT WITHINTHE CLEAR WIDTH OF THE STAIR. WITHIN ANY FLIGHT OF STAIRS, THE LARGEST WINDER TREAD DEPTH AT THE WALKLINE SHALL NOT EXCEED THE SMALLEST WINDER TREAD BYMORE THAN 3/8 INCH (9.5 MM). CONSISTENTLY SHAPED WINDERS AT THE WALKLINE SHALL BE ALLOWED WITHIN THE SAME FLIGHT OF STAIRS AS RECTANGULAR TREADS AND DONOT HAVE TO BE WITHIN 3/8 INCH (9.5 MM) OF THE RECTANGULAR TREADDEPTH.EXCEPTION: THE TREAD DEPTH AT SPIRAL STAIRWAYS SHALL BE IN ACCORDANCE WITH SECTION R311.7.10.1.R311.7.8 HANDRAILSHANDRAILS SHALL BE PROVIDED ON NOT LESS THAN ONE SIDE OF EACH CONTINUOUS RUN OF TREADS OR FLIGHT WITH FOUR OR MORE RISERS.R311.7.8.1 HEIGHTHANDRAIL HEIGHT, MEASURED VERTICALLY FROM THE SLOPED PLANE ADJOINING THE TREAD NOSING, OR FINISH SURFACE OF RAMP SLOPE, SHALL BE NOT LESS THAN 34 INCHES(864 MM) AND NOT MORE THAN 38 INCHES (965 MM).EXCEPTIONS:1. THE USE OF A VOLUTE, TURNOUT OR STARTING EASING SHALL BE ALLOWED OVER THE LOWEST TREAD.2. WHERE HANDRAIL FITTINGS OR BENDINGS ARE USED TO PROVIDE CONTINUOUS TRANSITION BETWEEN FLIGHTS, TRANSITIONS AT WINDER TREADS, THE TRANSITIONFROM HANDRAIL TO GUARD, OR USED AT THE START OF A FLIGHT, THE HANDRAIL HEIGHT AT THE FITTINGS OR BENDINGS SHALL BE PERMITTED TO EXCEED 38INCHES (956 MM).R311.7.8.2 CONTINUITYHANDRAILS FOR STAIRWAYS SHALL BE CONTINUOUS FOR THE FULL LENGTH OF THE FLIGHT, FROM A POINT DIRECTLY ABOVE THE TOP RISER OF THE FLIGHT TO A POINT DIRECTLY ABOVETHE LOWEST RISER OF THE FLIGHT. HANDRAIL ENDS SHALL BE RETURNED OR SHALL TERMINATE IN NEWEL POSTS OR SAFETY TERMINALS. HANDRAILS ADJACENT TO A WALL SHALLHAVE A SPACE OF NOT LESS THAN 11/2 INCHES (38 MM) BETWEEN THE WALL AND THE HANDRAILS.EXCEPTIONS:1. HANDRAILS SHALL BE PERMITTED TO BE INTERRUPTED BY A NEWEL POST AT THE TURN.2. THE USE OF A VOLUTE, TURNOUT, STARTING EASING OR STARTING NEWEL SHALL BE ALLOWED OVER THE LOWEST TREAD.R311.7.8.3 GRIP-SIZEREQUIRED HANDRAILS SHALL BE OF ONE OF THE FOLLOWING TYPES OR PROVIDE EQUIVALENT GRASPABILITY.1. TYPE I. HANDRAILS WITH A CIRCULAR CROSS SECTION SHALL HAVE ANOUTSIDE DIAMETER OF NOT LESS THAN 11/4 INCHES (32 MM) AND NOT GREATER THAN 2INCHES (51 MM). IF THE HANDRAIL IS NOT CIRCULAR, IT SHALL HAVE APERIMETER DIMENSION OF NOT LESS THAN 4 INCHES (102 MM) AND NOT GREATER THAN61/4 INCHES (160 MM) WITH A CROSS SECTION OF DIMENSION OF NOT MORE THAN 21/4 INCHES (57 MM). EDGES SHALL HAVE A RADIUS OF NOT LESS THAN0.01 INCH (0.25 MM).2. TYPE II. HANDRAILS WITH A PERIMETER GREATER THAN 61/4 INCHES (160 MM) SHALL HAVE A GRASPABLE FINGER RECESS AREA ON BOTH SIDES OF THEPROFILE. THE FINGER RECESS SHALL BEGIN WITHIN A DISTANCE OF 3/4 INCH (19 MM) MEASURED VERTICALLY FROM THE TALLEST PORTION OF THE PROFILE ANDACHIEVE A DEPTH OF NOT LESS THAN 5/16 INCH (8 MM) WITHIN 7/8 INCH (22 MM) BELOW THE WIDEST PORTION OF THE PROFILE. THIS REQUIRED DEPTH SHALLCONTINUE FOR NOT LESS THAN 3/8 INCH (10 MM) TO A LEVEL THAT IS NOT LESS THAN 13/4 INCHES (45 MM) BELOW THE TALLEST PORTION OF THE PROFILE. THEWIDTH OF THE HANDRAIL ABOVE THE RECESS SHALL BE NOT LESS THAN 11/4 INCHES (32 MM) AND NOT MORE THAN 23/4 INCHES (70 MM). EDGES SHALLHAVE A RADIUS OF NOT LESS THAN 0.01 INCH (0.25 MM).R311.7.8.4 EXTERIOR PLASTIC COMPOSITE HANDRAILSPLASTIC COMPOSITE EXTERIOR HANDRAILS SHALL COMPLY WITH THE REQUIREMENTS OF SECTION R507.3.R317.1 LOCATION REQUIREDPROTECTION OF WOOD AND WOOD-BASED PRODUCTS FROM DECAY SHALL BE PROVIDED IN THE FOLLOWING LOCATIONS BY THE USE OFN ATURALLY DURABLE WOOD OR WOOD THATIS PRESERVATIVE-TREATED IN ACCORDANCE WITH AWPA U1 FOR THE SPECIES, PRODUCT, PRESERVATIVE AND END USE. PRESERVATIVES SHALL BE LISTED IN SECTION 4 OF AWPAU1.1. WOOD JOISTS OR THE BOTTOM OF A WOOD STRUCTURAL FLOOR WHEN CLOSER THAN 18 INCHES (457 MM) OR WOOD GIRDERS WHEN CLOSER THAN 12 INCHES (305MM) TO THE EXPOSED GROUND IN CRAWL SPACES OR UNEXCAVATED AREA LOCATED WITHIN THE PERIPHERY OF THE BUILDING FOUNDATION.2. WOOD FRAMING MEMBERS THAT REST ON CONCRETE OR MASONRY EXTERIOR FOUNDATION WALLS AND ARE LESS THAN 8 INCHES (203 MM) FROM THE EXPOSEDGROUND.3. SILLS AND SLEEPERS ON A CONCRETE OR MASONRY SLAB THAT IS IN DIRECT CONTACT WITH THE GROUND UNLESS SEPARATED FROM SUCH SLAB BY AN IMPERVIOUSMOISTURE BARRIER.4. THE ENDS OF WOOD GIRDERS ENTERING EXTERIOR MASONRY OR CONCRETE WALLS HAVING CLEARANCES OF LESS THAN 1/2 INCH (12.7 MM) ON TOPS, SIDES ANDENDS.5. WOOD SIDING, SHEATHING AND WALL FRAMING ON THE EXTERIOR OF A BUILDING HAVING A CLEARANCE OF LESS THAN 6 INCHES (152 MM) FROM THE GROUND ORLESS THAN 2 INCHES (51 MM) MEASURED VERTICALLY FROM CONCRETE STEPS, PORCH SLABS, PATIO SLABS AND SIMILAR HORIZONTAL SURFACES EXPOSED TO THEWEATHER.6. WOOD STRUCTURAL MEMBERS SUPPORTING MOISTURE-PERMEABLE FLOORS OR ROOFS THAT ARE EXPOSED TO THE WEATHER, SUCH AS CONCRETE OR MASONRYSLABS, UNLESS SEPARATED FROM SUCH FLOORS OR ROOFS BY AN IMPERVIOUS MOISTURE BARRIER.7. WOOD FURRING STRIPS OR OTHER WOOD FRAMING MEMBERS ATTACHED DIRECTLY TO THE INTERIOR OF EXTERIOR MASONRY WALLS OR CONCRETE WALLS BELOWGRADE EXCEPT WHERE AN APPROVED VAPOR RETARDER IS APPLIED BETWEENTHE WALL AND THE FURRING STRIPS OR FRAMING MEMBERS.R317.1.1 FIELD TREATMENTFIELD-CUT ENDS, NOTCHES AND DRILLED HOLES OF PRESERVATIVE-TREATED WOOD SHALL BE TREATED IN THE FIELD IN ACCORDANCE WITH AWPA M4.R317.1.2 GROUND CONTACTALL WOOD IN CONTACT WITH THE GROUND, EMBEDDED IN CONCRETE IN DIRECT CONTACT WITH THE GROUND OR EMBEDDED IN CONCRETE EXPOSED TO THE WEATHER THATSUPPORTS PERMANENT STRUCTURES INTENDED FOR HUMAN OCCUPANCY SHALLBE APPROVED PRESSURE-PRESERVATIVE-TREATED WOOD SUITABLE FOR GROUND CONTACTUSE, EXCEPT THAT UNTREATED WOOD USED ENTIRELY BELOW GROUNDWATER LEVEL OR CONTINUOUSLY SUBMERGED IN FRESH WATER SHALL NOT BE REQUIRED TO BEPRESSURE-PRESERVATIVE TREATED.R317.1.3 GEOGRAPHICAL AREASIN GEOGRAPHICAL AREAS WHERE EXPERIENCE HAS DEMONSTRATED A SPECIFIC NEED, APPROVED NATURALLY DURABLE OR PRESSURE-PRESERVATIVE-TREATED WOOD SHALLBE USED FOR THOSE PORTIONS OF WOOD MEMBERS THAT FORM THE STRUCTURAL SUPPORTS OF BUILDINGS, BALCONIES, PORCHES OR SIMILAR PERMANENT BUILDINGAPPURTENANCES WHEN THOSE MEMBERS ARE EXPOSED TO THE WEATHER WITHOUT ADEQUATE PROTECTION FROM A ROOF, EAVE, OVERHANG OR OTHER COVERING THATWOULD PREVENT MOISTURE OR WATER ACCUMULATION ON THE SURFACE OR AT JOINTS BETWEEN MEMBERS. DEPENDING ON LOCAL EXPERIENCE, SUCH MEMBERS MAYINCLUDE:1. HORIZONTAL MEMBERS SUCH AS GIRDERS, JOISTS AND DECKING.2. VERTICAL MEMBERS SUCH AS POSTS, POLES AND COLUMNS.3. BOTH HORIZONTAL AND VERTICAL MEMBERS.R317.1.4 WOOD COLUMNSWOOD COLUMNS SHALL BE APPROVED WOOD OF NATURAL DECAY RESISTANCE OR APPROVED PRESSURE-PRESERVATIVE-TREATED WOOD.EXCEPTIONS:1. COLUMNS EXPOSED TO THE WEATHER OR IN BASEMENTS WHERE SUPPORTED BY CONCRETE PIERS OR METAL PEDESTALS PROJECTING 1 INCH (25 MM)ABOVE A CONCRETE FLOOR OR 6 INCHES (152 MM) ABOVE EXPOSED EARTH AND THE EARTH IS COVERED BY AN APPROVED IMPERVIOUS MOISTUREBARRIER.2. COLUMNS IN ENCLOSED CRAWL SPACES OR UNEXCAVATED AREAS LOCATEDWITHIN THE PERIPHERY OF THE BUILDING WHEN SUPPORTED BY A CONCRETEPIER OR METAL PEDESTAL AT A HEIGHT MORE THAN 8 INCHES (203 MM) FROM EXPOSED EARTH AND THE EARTH IS COVERED BY AN IMPERVIOUSMOISTURE BARRIER.3. DECK POSTS SUPPORTED BY CONCRETE PIERS OR METAL PEDESTALS PROJECTING NOT LESS THAN 1 INCH (25 MM) ABOVE A CONCRETE FLOOR OR 6 INCHES(152 MM) ABOVE EXPOSED EARTH.R317.1.5 EXPOSED GLUED-LAMINATED TIMBERSTHE PORTIONS OF GLUED-LAMINATED TIMBERS THAT FORM THE STRUCTURALSUPPORTS OF A BUILDING OR OTHER STRUCTURE AND ARE EXPOSED TO WEATHER AND NOTPROPERLY PROTECTED BY A ROOF, EAVE OR SIMILAR COVERING SHALL BE PRESSURE TREATED WITH PRESERVATIVE, OR BE MANUFACTURED FROM NATURALLY DURABLE ORPRESERVATIVE-TREATED WOOD.R317.1.1 FIELD TREATMENTFIELD-CUT ENDS, NOTCHES AND DRILLED HOLES OF PRESERVATIVE-TREATED WOOD SHALL BE TREATED IN THE FIELD IN ACCORDANCE WITH AWPA M4.R317.1.2 GROUND CONTACTALL WOOD IN CONTACT WITH THE GROUND, EMBEDDED IN CONCRETE IN DIRECT CONTACT WITH THE GROUND OR EMBEDDED IN CONCRETE EXPOSED TO THE WEATHER THATSUPPORTS PERMANENT STRUCTURES INTENDED FOR HUMAN OCCUPANCY SHALLBE APPROVED PRESSURE-PRESERVATIVE-TREATED WOOD SUITABLE FOR GROUND CONTACT USE,EXCEPT THAT UNTREATED WOOD USED ENTIRELY BELOW GROUNDWATER LEVELOR CONTINUOUSLY SUBMERGED IN FRESH WATER SHALL NOT BE REQUIRED TO BE PRESSUREPRESERVATIVETREATED.R317.3 FASTENERS AND CONNECTORS IN CONTACT WITH PRESERVATIVE-TREATED ANDFIRE-RETARDANT-TREATED WOODFASTENERS, INCLUDING NUTS AND WASHERS, AND CONNECTORS IN CONTACTWITH PRESERVATIVE-TREATED WOOD AND FIRE-RETARDANT-TREATED WOOD SHALL BE IN ACCORDANCEWITH THIS SECTION. THE COATING WEIGHTS FOR ZINC-COATED FASTENERSSHALL BE IN ACCORDANCE WITH ASTM A 153. STAINLESS STEEL DRIVEN FASTENERS SHALL BE INACCORDANCE WITH THE MATERIAL REQUIREMENTS OF ASTM F1667.R317.3.1 FASTENERS FOR PRESERVATIVE-TREATED WOODFASTENERS, INCLUDING NUTS AND WASHERS, FOR PRESERVATIVE-TREATED WOOD SHALL BE OF HOT-DIPPED, ZINC-COATED GALVANIZED STEEL, STAINLESS STEEL, SILICONBRONZE OR COPPER. COATING TYPES AND WEIGHTS FOR CONNECTORS IN CONTACT WITH PRESERVATIVE-TREATED WOOD SHALL BE IN ACCORDANCE WITH THE CONNECTORMANUFACTURER'S RECOMMENDATIONS. IN THE ABSENCE OF MANUFACTURER'SRECOMMENDATIONS, A MINIMUM OF ASTM A 653 TYPE G185 ZINC-COATED GALVANIZEDSTEEL, OR EQUIVALENT, SHALL BE USED.EXCEPTIONS:1. 1/2-INCH-DIAMETER (12.7 MM) OR GREATER STEEL BOLTS.2. FASTENERS OTHER THAN NAILS AND TIMBER RIVETS SHALL BE PERMITTED TO BE OF MECHANICALLY DEPOSITED ZINC-COATED STEEL WITH COATING WEIGHTSIN ACCORDANCE WITH ASTM B 695, CLASS 55 MINIMUM.3. PLAIN CARBON STEEL FASTENERS IN SBX/DOT AND ZINC BORATE PRESERVATIVE-TREATED WOOD IN AN INTERIOR, DRY ENVIRONMENT SHALL BE PERMITTED.R317.3.2 FASTENINGS FOR WOOD FOUNDATIONSFASTENINGS, INCLUDING NUTS AND WASHERS, FOR WOOD FOUNDATIONS SHALL BE AS REQUIRED IN AF&PA; PWF.R317.3.3 FASTENERS FOR FIRE-RETARDANT-TREATED WOOD USED IN EXTERIOR APPLICATIONS OR WET OR DAMP LOCATIONSFASTENERS, INCLUDING NUTS AND WASHERS, FOR FIRE-RETARDANT-TREATED WOOD USED IN EXTERIOR APPLICATIONS OR WET OR DAMP LOCATIONS SHALL BE OF HOT-DIPPED,ZINC-COATED GALVANIZED STEEL, STAINLESS STEEL, SILICON BRONZE ORCOPPER. FASTENERS OTHER THAN NAILS AND TIMBER RIVETS SHALL BE PERMITTED TO BE OFMECHANICALLY DEPOSITED ZINC-COATED STEEL WITH COATING WEIGHTS INACCORDANCE WITH ASTM B 695, CLASS 55 MINIMUM.R317.3.4 FASTENERS FOR FIRE-RETARDANT-TREATED WOOD USED IN INTERIOR APPLICATIONSFASTENERS, INCLUDING NUTS AND WASHERS, FOR FIRE-RETARDANT-TREATED WOOD USED IN INTERIOR LOCATIONS SHALL BE IN ACCORDANCE WITH THE MANUFACTURER'SRECOMMENDATIONS. IN THE ABSENCE OF THE MANUFACTURER'S RECOMMENDATIONS, SECTION R317.3.3 SHALL APPLY.SCALE:DATE:DRAWN BYPROJECT NO:SHEET SHEET PROJECT/CLIENTMILLER DESIGN BUILD, LLCBOZEMAN, MT 59715406.531.9671millerdesignbuild@gmail.comSCOTT R. MILLERDESIGNERSTRUCTURAL ENGINEERDIXSON & COMPANY, INC.PoBox 6099BOZEMAN, MT 59771 BUILDERCIVIL ENGINEER406.388.7337dixsonandcompanyinc@gmail.comJOE DIXSONSYNERGY ENGINEERING & KONSULTING3731 Equesttrian Lane, STE 102BOZEMAN, MT 59718406.624.6137marlene@seakmt.comMarlene Sadaj, PE12" = 1'-0"a0.1Schedules / NotesCATTAIL DUPLEXESAuthor4-25-202206202979 & 2983 FEN WAYBozeman, MT 59718SITE PLAN REVIEWDIXSON & COMPANY, inc.12" = 1'-0"1EGRESS NOTES12" = 1'-0"2STAIR NOTES12" = 1'-0"3PROTECTION OF WOOD PRODUCTS NOTESREV. DATE REMARKS