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<br /> ���*�, �+ . Existing wall per plan � '
<br /> Gi�� �����.7 ii ii � Sht'g per plan
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<br /> (IBC 1Q09} ii ii -� ii ii 1-}oist per plan ;���
<br /> A. Widt� 36" min. , „�0 38" ii ii �' �� 1f ..__.__ _ , ; ; , ' ; �
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<br /> B. Prov� e handrail both sides 34 t �� �� � , _ _� � �
<br /> above stair tread nosing, 1-"1/4"'ta 2"dia. ii ii � ii i� 3"min
<br /> rc�und and to be cc�ntinuous without ii ii �� ii i�� 3`�min { ' '
<br /> � : _
<br /> interuption �i i� _ -;--. -�� 9 9
<br /> C. Handrail to have a minirnum cfearar�ce of ii ii _�—��_ _--� �'���'`a�,
<br /> 1-112" from wail or other abstruction ii i€ ii i Jo�st han�er ea.joist . . 5325
<br /> D. Riser height: 7" max. measured vertica!!y �� �+ �J ''�" �+r� t�r r� �+ �a} }�y�+ .
<br /> between �eadin ed es of ad'acent ireads. ii ii 2x12 #2 df f�dger with REGISTER�D
<br /> � � � ! 1 ���1.rG1� 1�Y G�� r3�V L��� ��t��.r�,7 ARCHIT�G�'
<br /> i► �i {3) Ledgerlc�k 5 mm. ��'''��+
<br /> E. Riser toierance; t��greafiest riser height n �i
<br /> ii �� ea. stud as shown 1. Existing wall with �x6 studs at '16"o.c, and 518" GW8 ���� . T
<br /> within any flight of stairs m�as# na#exc�ec� i� u
<br /> the 5malle�t by more#han .375° ii ii } � r�{� Q/� Qr 2. �.xisting 5-1/2"thick reinforced concrete sfab floor STATE(7F WASHINGT�N .4 -
<br /> F. Riser sla e an le. riser must be vertic�l ar ii ii ��{.��� G 4 '�✓�..1 �i 1 _ 3. New D�2x121edger attached to each stud af existi�g wall with {3} r a
<br /> P 9 �
<br /> �� n �p ", 5 L e d g e r�o c s c r e w s, p e r d e t a i l
<br /> s l o p e d �r o m t h e u n d+�r s i c 3 e c�f t h e n a s i n g o f ii ii $'-Q'� ;� 4, New �1-7/8"T,�121��t 16" o.c.
<br /> the tread above at an ang4e of nc� more i�
<br /> 5. New Simpscan lTS2.06J11.88 Top Flange i-Joist Hanger
<br /> #han 30 degrees from vertical ii i 6. Rlew PT 2� bottom plate with 318" anchor bolts af 32" o�c. �, ..
<br /> G. Open risers; permitted pr�vided the ii i 7. N�w 2x6 stud�at 96'°o.e. � y
<br /> apenir�g located mar�than 30" meas�red ii i �� 8. New dauble 2� top plate �
<br /> uertically ta the floor or grade below daes �� � 14 9. N�w DF�x�2 rim jc�ist �
<br /> not per'mit t�te passage c�f a 4" diameter �i i � 10. Ne�v 3l4" (23132") CC�X subflaor plywood applied with subfloor � �
<br /> sph�re. u i adhesive and 2 3I8" x .113"galv. ringshank n�iEs spaced at�" o.c. {� �
<br /> H. Tread depth: 11" min. measured ii i at ed�es; 12" o.c. €ield. U�? �
<br /> horizontally between the vertical planes of ii i�j� '� 11. New 42" high guard r�iling to match existing: �x6 h�rizontal � o
<br /> the foremost projection of adjaeent tr�ads 3 1� �h �� members with maximum 19"c�pening {1BC 1Q13.4, exception 4} .= 4 ';=
<br /> and at right ang(e to the treat#s le�ding ii i l ! 12. Su�po�raii with with 2x4 fl�t with 2x4 an ed�e�race. 7op of rail � �
<br /> ed e. ►i i must restrain load of 2UO Ibs/lf. � o � `s`:`
<br /> � ii ii 12 13. Entire perimeter of new enc{ased st�rage space is 5W-fi per " "
<br /> k, 7r�ad tolerance: gre�#est tread d�pth i; �R � � � � W
<br /> within any�ight t�f s#airs must not exeeed u t� shear wall#ab�e, sheet�1. { Rlorth, south, east, and west walls, � � � �
<br /> #he smallest by more than ,375". ii ii 5 � includin existin walls, ([,} � � � � } .
<br /> J. Nosing r�dius o#curvature: 9/16" ii ii $ 14. New(2} 2x4 pc�sts at G8 o.c. with MT�18. Wrap�rc�und past, � � � � .;? �
<br /> n4tch 2x flat as required, nail to tap of joist. � .�. � }, � @� N
<br /> K, Soiid nasing projection: 3/4"' min to 1-1/4" n �� c� �; � � � w
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<br /> m�x. }' ii ii L ,�,? �r, � c' � � ' .
<br /> L.. Nasin� projection tc�lerance: 3/8 n ri � � �,, �, � •� � '
<br /> M. Bevel of nosing: 112" max. �� ��
<br /> N. 2015 IBC 1(}14.6 "10�i4;6 Handrai(extensions. 2x6 gu�rd 42" �--- Q °' �' i '� °
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<br /> Handrails shall re��rr�to a wall, Guard or the ak�ove tlasitl 1 -
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<br /> walking surface c�r shall be continuous to th� � H�nd��il ii ii .`�
<br /> handrail o#an adjacent flight of stairs c�r r�rnp run. � both sides ii i� }ni��
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<br /> 1Nhere handrails are not continuous between
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<br /> fEights, the handrails shall extend harizantally nc�t
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<br /> 2x6 wall with 7116" ;; ; 7
<br /> )ess than 12 inches (305 mm} beyond�h�#op riser ..
<br /> and cc�ntinue tc� slope for the depth af ane #r�ad � � r C�Sb sheathirtg ii ii
<br /> 2x4 guard . ----- ----------- � � �� ���`'`���
<br /> beyand #he bc�#tom riser. At ramps where handrails ! -----------_-� ii ii �3
<br /> are n�t cantinuous b�tween runs, the har�draiCs �2) 2x6 tCe�t� �_____ _� ' ' «� n �, 13
<br /> shall exfend harizontafly above th� landing 12 �,- --_.�_'�.�.m_--y-r ii ii ' ,
<br /> inches 3Q5 mm minimum be e�nd the to and �_ ______--,�- � ir �� i�
<br /> f ) Y p ; � � ' ' ii ii
<br /> bottc�m of ramp runs. The extensions of handrai(s �� �i
<br /> shali be in the sam� directian �f the fi�igi�ts of stairs �;+ � �,;�' ii ii ('j,) �
<br /> at stairway� and the ramp r�ns at ramps. "� �4 ��,,� ii ii "� �
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<br /> (3) 2x12 strir�c�ers 2x92 skirt ii ii � � � �
<br /> 2x12 skirt ii u � � � �
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<br /> • . . a SCALE: � ii ii �� 2 � (:? r` � •C�' � �, �
<br /> �� i.G� l �.7������ � ii ii +�f-�+ � > t�"� > � �
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<br /> ._____ __________________________________________________
<br /> ________________________________________________
<br /> __________�.______. File#: 18(17wd4
<br /> � Existir�g m�zzanine�Ic�or � 2, Drawrt: 23 Jan 2019 '
<br /> • • SCALE: Revised: 1,5 Mac 2�19
<br /> 2x4 past every Ty p�+�a I v►r�I� �e���o r� .
<br /> 3rd riser �
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<br /> A2 � --- Drawlnc� lis� ,
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<br /> � ' ���� A1. Flc�c�r & building
<br /> ��___________________ plans
<br /> i i A2. Sec#ic�ns & detai(s ��
<br /> .-'� ; 'i Simps�n f�ce maunt 2x and (2�2x S1. Structural notes '� :
<br /> Nandrail E �_� hangers at strin�ers and skir� -�
<br /> ba�rc�s �
<br /> 2x6 guard i i 3-�5-19 revi�ic�ns '�
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<br /> �' 1x riser � {
<br /> � i + i };.,.
<br /> � t f � � �
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<br /> � � �3� 2x�2 �tringers; Zx12 i i
<br /> skirt baards i i ..
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<br /> ' Mid span support � ! Exis�ing wall
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<br /> SCALE: Scales are tor ,���:.
<br /> 34"x 22" Shest size
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