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r " HANDRAIL GRIP SIZE STAIR AD ' RI FNc e THE MAXIMUM RISER HEIGHT SHALL BE 7-3/4 INCFLES. THE RISER 1 _2; SHALL BE MEASURED VERTICALLY BETWEEN LEADING EDGES OF THE ADJACENT TREADS. THE GREATEST RISER HEIGHT WITHIN ANY FLIGHT OF STAIRS SHALL NOT EXCEED THE SMALLEST BY MORE THAN 3/8 INCH. 111 8 W 1�•.2• I OPEN RISERS ARE PERMITTED PROVIDED THAT THE OPENINGS LOCATED MORE > i AA THAN 30 INCHES,AS MEASURED VERTICALLY,TO THE FLOOR OR GRADE Do NOT g �, W - H _ PERMIT THE PASSAGE OF A 4-INCH DIAMETER SPHERE. �a6N 31 W R f F W \! � A' is �s � THE MINIMUM TREAD DEPTH SHALL BE 10 INCHES. il$TREAD DEPTH SHALL BE E aa EDGE. fit min' _ MEASURED HORIZONTALLY BETWEEN THE VERTICAL PLANES OF THE FOREMOST PROJECTION f OF E THEAGRREATEST TREAD JACENT TREADS DEPTH BflHIIN ANY FLIGHT OF STAIRS SHALL NOT RIGHT ANGLE TO THE TREADS GEXCETD THE 39 p Q SMALLEST BY MORE THAN 3/8 INCH. S 16 � rc NONCIRCULAR CIRCULAR RECESSED egg I J THE RADIUS OF CURVATURE AT THE LEADING EDGE OF THE TREAD SHALL BE NO GREATER THAN 8/16 INCH. A NOSING NOT LESS THAN 3/4 INCH BUT NOT MORE THAN 1-1/4 INCHES PDrimnlor.4"-6A'' Perimeter:>6," SHALL BE PROVIDED ON STAIRWAYS WITH SOLID RISERS.A NOSING IS NOT REQUIRED WHERE 7HE TREAD DEPTH IS A MINIMUM OF 11 INCHES. *HANDRAIL HEIGHT, MEASURED VERTICALLY FROM THE SLOPED PLANE ADJOINING THE TREAD NOSING, OR FINISH SURFACE OF RAMP SLOPE, SHALL BE NOT LESS THAN 34 INCHES AND NOT MORE THAN 38 INCHES. *HANDRAIL SHALL BE PROVIDED ON AT LEAST ONE SIDE OF EACH THE GUARDS MAYBE W1w0,AWMINUM,VINYL OR EQUIVALENT. CONTINUOUS RUN OF TREADS OF FLIGHT WITH FOUR OR MORE RISERS. *HANDRAIL ASSEMBLIES AND GUARDS SHALL BE DESIGNED TO RESIST A LOAD OF 50 PLF APPLIED IN ANY DIRECTION AT THE TOP AND TO TRANSFER THIS LOAD THROUGH THE SUPPORTS TO THE STRUCTURE. *''0•n'P T. 5/4" X 6 BOARD RAIL CAP *HANDRAILS FOR STAIRWAYS SHALL BE CONTINUOUS FOR THE FULL LENGTH s'-d MAX OF THE FLIGHT,FROM A POINT DIRECTLY ABOVE THE TOP RISER OF THE OPENINGS SHALL NOT ALLOW FLIGHT TO A POINT DIRECTLY ABOVE THE LOWEST RISER OF THE FLIGHT. THE PASSAGE OF A 4" DIAMETER SPHERE 3'-0'LANDING FE3GHT-5 S1EPs(HAN.J HANDRAIL ENDS SHALL BE RETURNED OR SHALL TERMINATE IN NEWEL POSTS OR SAFETY TERMINALS. HANDRAILS ADJACENT TO A WALL SHALL a'-0"LANDING HE3GHT-T STEPS(MIN.) HAVE A SPACE OF NOT LESS THAN 1-1/2 INCHES BETWEEN THE WALL 2 X 4 TOP &BOTTOM ATTACHED TO 5'-0'LANDING HEIGHT-B STEPS(MIN.) AND THE HANDRAILS. TO POSTS WITH (2))y8 WOOD SCREWS ON INSIDE FACE. 2 X 2 BALUSTER OPENINGS FOR REQUIRED GUARDS ON THE SIDE OF STAIR TREADS SHALL NOT ALLOW A MIN. (3) SIMPSON'S SOS 1/4" X 4-1/2" SPHERE 4-3/e" TO PASS THROUGH. WOOD SCREWS FOR RIM JOIST TO POST STAIR AND LANDING WLMINARON REQUIRED CONNECTION, (5) 16d NAILS OR EQUIVALENT P.T. Slip LANDING FLOOR FASTEN ATTACH %MOTTOM IN. (1)#8 WOODTSCREW OR EQUIV. TO HOST FLOOR MEMBERS USING SIMPON'S 1/4" X 3-1/2-SIDS WOOD SCREWS OR EQUIV. AT 12' O.C. STAGGERED SCREW PATTERN .T. 2X6 CONCRETE OPTION, » IF STEPS ARE INSTALLED ON DUSTING CONCRETE, THE GROUND ANCHORS AND TIEDOWN STRAP CAN BE OMITTED. THE P.T. 4 X 4 POSTS SHALL BE ANCHORED TO THE EXISTING 2X6 P.T. LANDING CONSTRUCTION CONCRETE SLAB USING SIMPSON'S L-BRACKET OR EQUIVALENT. 16' O.C. FLOOR JOISTS USING (5) 16d NAILS OR EQUIVALENT AT EACH JOIST TO RIM JOIST CONNECTION. 30" GROUND ANCHOR 2!W/TIE DOWN STRAP STRAP TO WRAP AROUND P.T. 2 X 6 TIGHTLY (DO NOT OVER TENSION STRAPS) (3) 2 X 12 P.T. STAIR STRINGERS ATTACHED TO P.T. LANDING o 2 o (EACH SIDES OF LANDING) USING SIMPSON'S LSC ADJUSTABLE STAIR STRINGER OR EQUIV. X_ Fsm. (1) 2 X 6 P.T. ATTACHED TO POSTS USING(5) 16d NAILS OR EQUIVALENT AT EACH a E 2X6 TO POST CONNECTION. These plans and sFFedflcatlons co wIN seclbn 301, of the Drawing Number. 201)F6C-Residenllal(61h&IIII-) s.,� V ULT-ULTINATE DESIGN WIND SPEED-Tee MPH STAIR VA50=NOMINAL DESIGN WM SPEED=124 MPH CONSTRUCUON NOTE: (TABLE 160ea1) CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING 43"am NSA) ALL DfMENSIONS AND CONDITIONS PRIOR TO CONSTRUCTION. s"me En swm,gswe, ALL STAIR COMPONENTS TO BE PRESSURE TREATED LUMBER 316Ske Wal.Scenles,cHry Ste toD la FL'33853 9185.SomlcMry,9"100 ALL FASTENERS IN CONTACT WITH P.T. LUMBER TO BE HOT DIP GALVANIZED OR STAINLESS STEEL On=863.5835880 I=1-666.865.2044 ©cd, mrr