Encourages the use and reuse of existing buildings. This code covers repair, alteration, addition and change of occupancy for existing buildings. and historic buildings, while achieving appropriate levels of safety without requiring full compliance with the new construction requirements contained in the other I-Codes. Key changes in the 2021 IEBC® include: For storm shelters, the required occupant capacity is now limited to the total occupant load of the classrooms, vocational rooms and offices in the school while the maximum distance of travel was deleted. When significant portions of a building’s exterior wall coverings or exterior wall envelope are added or replaced, they must comply with the requirements of Chapters 14 and 26 of the IBC. Snow loads must be addressed during repair of substantial structural damage regardless of whether the damage was a result of snow. Additions, Level 3 alterations and Changes of occupancy in Educational occupancies are now required to meet the enhanced classroom acoustic requirements of Section 808 of ICC A117.1. Additional equipment may be added to a roof without a full structural analysis when the equipment weighs less than 400 pounds and is less than 10 percent of the total roof dead load. With a change of occupancy, a seismic analysis is required for a Group S or Group U occupancy changing to a new occupancy. Furniture, such as office cubicles, reception desks or smaller bookcases, are exempt from a permit and not intended to be a Level 2 alteration. Sprinkler requirements for Level 2 and Level 3 alterations are revised for higher hazard areas.

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PDF Pages	PDF Title
1	2021 IEBC® INTERNATIONAL EXISTING BUILDING CODE®
2	2021 IEBC® INTERNATIONAL EXISTING BUILDING CODE® TITLE PAGE
3	COPYRIGHT
4	PREFACE
10	ARRANGEMENT AND FORMAT OF THE 2021 IEBC
16	TABLE OF CONTENTS
20	CHAPTER 1 SCOPE AND ADMINISTRATION PART 1—SCOPE AND APPLICATION SECTION 101 SCOPE AND GENERAL REQUIREMENTS SECTION 102 APPLICABILITY
21	PART 2—ADMINISTRATION AND ENFORCEMENT SECTION 103 CODE COMPLIANCE AGENCY SECTION 104 DUTIES AND POWERS OF CODE OFFICIAL
23	SECTION 105 PERMITS
24	SECTION 106 CONSTRUCTION DOCUMENTS
26	SECTION 107 TEMPORARY STRUCTURES AND USES SECTION 108 FEES SECTION 109 INSPECTIONS
27	SECTION 110 CERTIFICATE OF OCCUPANCY
28	SECTION 111 SERVICE UTILITIES SECTION 112 MEANS OF APPEALS SECTION 113 VIOLATIONS
29	SECTION 114 STOP WORK ORDER SECTION 115 UNSAFE STRUCTURES AND EQUIPMENT SECTION 116 EMERGENCY MEASURES
30	SECTION 117 DEMOLITION
32	CHAPTER 2 DEFINITIONS SECTION 201 GENERAL SECTION 202 GENERAL DEFINITIONS
36	CHAPTER 3 PROVISIONS FOR ALL COMPLIANCE METHODS SECTION 301 ADMINISTRATION SECTION 302 GENERAL PROVISIONS
37	SECTION 303 STORM SHELTERS SECTION 304 STRUCTURAL DESIGN LOADS AND EVALUATION AND DESIGN PROCEDURES
38	[BS] TABLE 304.3.1 PERFORMANCE OBJECTIVES FOR USE IN ASCE 41 FOR COMPLIANCE WITH FULL SEISMIC FORCES [BS] TABLE 304.3.2 PERFORMANCE OBJECTIVES FOR USE IN ASCE 41 FOR COMPLIANCE WITH REDUCED SEISMIC FORCES SECTION 305 IN-SITU LOAD TESTS SECTION 306 ACCESSIBILITY FOR EXISTING BUILDINGS
40	SECTION 307 SMOKE ALARMS
41	SECTION 308 CARBON MONOXIDE DETECTION SECTION 309 ADDITIONS AND REPLACEMENTS OF EXTERIOR WALL COVERINGS AND EXTERIOR WALL ENVELOPES
42	CHAPTER 4 REPAIRS SECTION 401 GENERAL SECTION 402 BUILDING ELEMENTS AND MATERIALS SECTION 403 FIRE PROTECTION SECTION 404 MEANS OF EGRESS SECTION 405 STRUCTURAL
43	SECTION 406 ELECTRICAL SECTION 407 MECHANICAL
44	SECTION 408 PLUMBING
46	CHAPTER 5 PRESCRIPTIVE COMPLIANCE METHOD SECTION 501 GENERAL SECTION 502 ADDITIONS
47	SECTION 503 ALTERATIONS
49	SECTION 504 FIRE ESCAPES
50	SECTION 505 WINDOWS AND EMERGENCY ESCAPE OPENINGS SECTION 506 CHANGE OF OCCUPANCY
51	SECTION 507 HISTORIC BUILDINGS
54	CHAPTER 6 CLASSIFICATION OF WORK SECTION 601 GENERAL SECTION 602 ALTERATION—LEVEL 1 SECTION 603 ALTERATION—LEVEL 2 SECTION 604 ALTERATION—LEVEL 3 SECTION 605 CHANGE OF OCCUPANCY SECTION 606 ADDITIONS SECTION 607 HISTORIC BUILDINGS
56	CHAPTER 7 ALTERATIONS-LEVEL 1 SECTION 701 GENERAL SECTION 702 BUILDING ELEMENTS AND MATERIALS
57	SECTION 703 FIRE PROTECTION SECTION 704 MEANS OF EGRESS SECTION 705 REROOFING
58	SECTION 706 STRUCTURAL
59	SECTION 707 ELECTRICAL SECTION 708 ENERGY CONSERVATION
60	CHAPTER 8 ALTERATIONS—LEVEL 2 SECTION 801 GENERAL SECTION 802 BUILDING ELEMENTS AND MATERIALS
62	SECTION 803 FIRE PROTECTION
64	SECTION 804 MEANS OF EGRESS
65	TABLE 804.4.1.1(1) STORIES WITH ONE EXIT OR ACCESS TO ONE EXIT FOR R-2 OCCUPANCIES TABLE 804.4.1.1(2) STORIES WITH ONE EXIT OR ACCESS TO ONE EXIT FOR OTHER OCCUPANCIES
68	SECTION 805 STRUCTURAL
69	SECTION 806 ELECTRICAL SECTION 807 MECHANICAL
70	SECTION 808 PLUMBING SECTION 809 ENERGY CONSERVATION
72	CHAPTER 9 ALTERATIONS-LEVEL 3 SECTION 901 GENERAL SECTION 902 SPECIAL USE AND OCCUPANCY SECTION 903 BUILDING ELEMENTS AND MATERIALS
73	SECTION 904 FIRE PROTECTION
74	SECTION 905 MEANS OF EGRESS SECTION 906 STRUCTURAL SECTION 907 ENERGY CONSERVATION
76	CHAPTER 10 CHANGE OF OCCUPANCY SECTION 1001 GENERAL SECTION 1002 SPECIAL USE AND OCCUPANCY
77	SECTION 1003 BUILDING ELEMENTS AND MATERIALS SECTION 1004 FIRE PROTECTION SECTION 1005 MEANS OF EGRESS SECTION 1006 STRUCTURAL SECTION 1007 ELECTRICAL
78	SECTION 1008 MECHANICAL SECTION 1009 PLUMBING SECTION 1010 OTHER REQUIREMENTS SECTION 1011 CHANGE OF OCCUPANCY CLASSIFICATION
79	TABLE 1011.5 MEANS OF EGRESS HAZARD CATEGORIES
80	TABLE 1011.6 HEIGHTS AND AREAS HAZARD CATEGORIES TABLE 1011.7 EXPOSURE OF EXTERIOR WALLS HAZARD CATEGORIES
82	CHAPTER 11 ADDITIONS SECTION 1101 GENERAL SECTION 1102 HEIGHTS AND AREAS SECTION 1103 STRUCTURAL
83	SECTION 1104 ENERGY CONSERVATION
84	CHAPTER 12 HISTORIC BUILDINGS SECTION 1201 GENERAL SECTION 1202 REPAIRS
85	SECTION 1203 FIRE SAFETY SECTION 1204 CHANGE OF OCCUPANCY
86	SECTION 1205 STRUCTURAL SECTION 1206 RELOCATED BUILDINGS
88	CHAPTER 13 PERFORMANCE COMPLIANCE METHODS SECTION 1301 GENERAL
89	EQUATION 13-1 EQUATION 13-2
90	EQUATION 13-3 EQUATION 13-4 EQUATION 13-5 TABLE 1301.6.3 COMPARTMENTATION VALUES
91	TABLE 1301.6.4 SEPARATION VALUES TABLE 1301.6.5 CORRIDOR WALL VALUES TABLE 1301.6.6(1) VERTICAL OPENING PROTECTION VALUE
92	TABLE 1301.6.6(2) CONSTRUCTION-TYPE FACTOR EQUATION 13-6 TABLE 1301.6.8 AUTOMATIC FIRE DETECTION VALUES TABLE 1301.6.9 FIRE ALARM SYSTEM VALUES
93	TABLE 1301.6.10 SMOKE CONTROL VALUES TABLE 1301.6.11 MEANS OF EGRESS VALUES
94	TABLE 1301.6.12 DEAD-END VALUES EQUATION 13-7 TABLE 1301.6.14 ELEVATOR CONTROL VALUES
95	TABLE 1301.6.15 MEANS OF EGRESS EMERGENCY LIGHTING VALUES TABLE 1301.6.16 MIXED OCCUPANCY VALUESa TABLE 1301.6.17 SPRINKLER SYSTEM VALUES
96	TABLE 1301.6.18 STANDPIPE SYSTEM VALUES TABLE 1301.6.19 INCIDENTAL USE AREA VALUES TABLE 1301.6.20 SMOKE COMPARTMENTATION VALUES
97	TABLE 1301.6.21.1 CARE RECIPIENT ABILITY VALUES TABLE 1301.6.21.2 CARE RECIPIENT CONCENTRATION VALUES TABLE 1301.6.21.3 ATTENDANT-TO-CARE RECIPIENTS RATIO VALUES TABLE 1301.8 MANDATORY SAFETY SCORESa
98	TABLE 1301.7 SUMMARY SHEET—BUILDING CODE
99	TABLE 1301.9 EVALUATION FORMULASa
100	CHAPTER 14 RELOCATED OR MOVED BUILDINGS SECTION 1401 GENERAL SECTION 1402 REQUIREMENTS
102	CHAPTER 15 CONSTRUCTION SAFEGUARDS SECTION 1501 GENERAL [BS] TABLE 1501.6 PROTECTION OF PEDESTRIANS
103	SECTION 1502 PROTECTION OF ADJOINING PROPERTY
104	SECTION 1503 TEMPORARY USE OF STREETS, ALLEYS AND PUBLIC PROPERTY SECTION 1504 FIRE EXTINGUISHERS SECTION 1505 MEANS OF EGRESS SECTION 1506 STANDPIPES
105	SECTION 1507 AUTOMATIC SPRINKLER SYSTEM SECTION 1508 ACCESSIBILITY SECTION 1509 WATER SUPPLY FOR FIRE PROTECTION
106	CHAPTER 16 REFERENCED STANDARDS ASCE/SEI ASHRAE ASME
107	ASTM ICC
108	NFPA UL
110	APPENDIX A: GUIDELINES FOR THE SEISMIC RETROFIT OF EXISTING BUILDINGS CHAPTER A1 SEISMIC STRENGTHENING PROVISIONS FOR UNREINFORCED MASONRY BEARING WALL BUILDINGS SECTION A101 PURPOSE SECTION A102 SCOPE [BS] TABLE A102.1 ELEMENTS REGULATED BY THIS CHAPTER SECTION A103 DEFINITIONS
111	SECTION A104 SYMBOLS AND NOTATIONS
112	SECTION A105 GENERAL REQUIREMENTS
113	SECTION A106 MATERIALS REQUIREMENTS EQUATION A1-1 EQUATION A1-2
114	SECTION A107 QUALITY CONTROL
115	SECTION A108 DESIGN STRENGTHS EQUATION A1-3 EQUATION A1-4 SECTION A109 ANALYSIS AND DESIGN PROCEDURE
116	[BS] TABLE A108.1(1) STRENGTH VALUES FOR EXISTING MATERIALS SECTION A110 GENERAL PROCEDURE EQUATION A1-5
117	[BS] TABLE A108.1(2) STRENGTH VALUES OF NEW MATERIALS USED IN CONJUNCTION WITH EXISTING CONSTRUCTION SECTION A111 SPECIAL PROCEDURE
118	[BS] TABLE A110.2 ALLOWABLE VALUE OF HEIGHT-TO-THICKNESS RATIO OF UNREINFORCED MASONRY WALLS EQUATION A1-6 EQUATION A1-7 EQUATION A1-8 EQUATION A1-9
119	[BS] FIGURE A111.4.1 ACCEPTABLE DIAPHRAGM SPAN EQUATION A1-10 EQUATION A1-11 EQUATION A1-12
120	[BS] TABLE A111.5 HORIZONTAL FORCE FACTOR, Cp EQUATION A1-13 EQUATION A1-14 EQUATION A1-15 EQUATION A1-16 EQUATION A1-17 SECTION A112 ANALYSIS AND DESIGN EQUATION A1-18 EQUATION A1-19 EQUATION A1-20
121	EQUATION A1-21 EQUATION A1-22 EQUATION A1-23 [BS] FIGURE A112.2.2 ANALYSIS OF URM WALL IN-PLANE SHEAR FORCES
122	SECTION A113 DETAILED BUILDING SYSTEM DESIGN REQUIREMENTS [BS] TABLE A113.6 MAXIMUM ALLOWABLE HEIGHT-TO-THICKNESS RATIO FOR PARAPETS
123	SECTION A114 WALLS OF UNBURNED CLAY, ADOBE OR STONE MASONRY [BS] TABLE A114.1 MAXIMUM HEIGHT-TO-THICKNESS RATIO FOR ADOBE OR STONE WALLS
124	CHAPTER A2 EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE AND REINFORCED MASONRY WALL BUILDINGS WITH FLEXIBLE DIAPHRAGMS SECTION A201 PURPOSE SECTION A202 SCOPE SECTION A203 DEFINITIONS SECTION A204 SYMBOLS AND NOTATIONS SECTION A205 GENERAL REQUIREMENTS
125	SECTION A206 ANALYSIS AND DESIGN
126	SECTION A207 MATERIALS OF CONSTRUCTION
128	CHAPTER A3 PRESCRIPTIVE PROVISIONS FOR SEISMIC STRENGTHENING OF CRIPPLE WALLS AND SILL PLATE ANCHORAGE OF LIGHT, WOOD-FRAME RESIDENTIAL BUILDINGS SECTION A301 GENERAL SECTION A302 DEFINITIONS
129	SECTION A303 STRUCTURAL WEAKNESSES SECTION A304 STRENGTHENING REQUIREMENTS
130	[BS] FIGURE A304.1.3 TYPICAL FLOOR TO CRIPPLE WALL CONNECTION (FLOOR JOISTS NOT PARALLEL TO FOUNDATIONS)
131	[BS] FIGURE A304.1.4(1) TYPICAL FLOOR TO CRIPPLE WALL CONNECTION (FLOOR JOISTS PARALLEL TO FOUNDATIONS)
132	[BS] FIGURE A304.1.4(2) TYPICAL FLOOR TO MUDSILL CONNECTIONS
133	[BS] FIGURE A304.1.4(3) ALTERNATIVE FLOOR FRAMING TO CRIPPLE WALL CONNECTION
134	[BS] FIGURE A304.2.3(1) NEW REINFORCED CONCRETE FOUNDATION SYSTEM
135	[BS] FIGURE A304.2.3(2) NEW MASONRY CONCRETE FOUNDATION [BS] TABLE A304.2.3(1) NEW REINFORCED CONCRETE FOUNDATION SYSTEM
136	[BS] TABLE A304.2.3(2) NEW MASONRY CONCRETE FOUNDATION [BS] TABLE A304.3.1 SILL PLATE ANCHORAGE AND CRIPPLE WALL BRACING
137	[BS] FIGURE A304.3.1(1) SILL PLATE BOLTING TO EXISTING FOUNDATIONa
138	[BS] FIGURE A304.3.1(2) ALTERNATIVE SILL PLATE ANCHORING IN EXISTING FOUNDATION—WITHOUT CRIPPLE WALLS AND FLOOR FRAMING NOT PARALLEL TO FOUNDATIONSa [BS] FIGURE A304.3.1(3) ALTERNATIVE SILL PLATE ANCHOR TO EXISTING FOUNDATION WITHOUT CRIPPLE WALL AND FLOOR FRAMING PARALLEL TO FOUNDATIONS
139	[BS] FIGURE A304.3.1(4) SILL PLATE ANCHORING TO EXISTING FOUNDATION—ALTERNATIVE CONNECTION FOR BATTERED FOOTING [BS] TABLE A304.3.2 SILL PLATE ANCHORAGE FOR VARIOUS LENGTHS OF SILL PLATE
140	[BS] FIGURE A304.4.1(1) CRIPPLE WALL BRACING WITH NEW WOOD STRUCTURAL PANEL ON EXTERIOR FACE OF CRIPPLE STUDS
141	[BS] FIGURE A304.4.1(2) CRIPPLE WALL BRACING WITH WOOD STRUCTURAL PANEL ON INTERIOR FACE OF CRIPPLE STUDS
142	[BS] FIGURE A304.4.1(3) PARTIAL CRIPPLE STUD WALL ELEVATION
143	[BS] FIGURE A304.4.2 FLOOR PLAN-CRIPPLE WALL BRACING LAYOUT
146	CHAPTER A4 EARTHQUAKE RISK REDUCTION IN WOOD-FRAME RESIDENTIAL BUILDINGS WITH SOFT, WEAK OR OPEN FRONT WALLS SECTION A401 GENERAL SECTION A402 DEFINITIONS SECTION A403 ANALYSIS AND DESIGN
148	SECTION A404 PRESCRIPTIVE MEASURES FOR WEAK STORY
149	SECTION A405 MATERIALS OF CONSTRUCTION SECTION A406 CONSTRUCTION DOCUMENTS
150	SECTION A407 QUALITY CONTROL
152	CHAPTER A5 REFERENCED STANDARDS SECTION A501 REFERENCED STANDARDS TABLE A501.1 REFERENCED STANDARDS TABLE A501.1—continued REFERENCED STANDARDS
154	APPENDIX B SUPPLEMENTARY ACCESSIBILITY REQUIREMENTS FOR EXISTING BUILDINGS AND FACILITIES SECTION B101 QUALIFIED HISTORIC BUILDINGS AND FACILITIES SECTION B102 FIXED TRANSPORTATION FACILITIES AND STATIONS
155	SECTION B103 DWELLING UNITS AND SLEEPING UNITS SECTION B104 REFERENCED STANDARDS [BE] TABLE B104.1 REFERENCED STANDARDS
156	APPENDIX C: GUIDELINES FOR THE WIND RETROFIT OF EXISTING BUILDINGS CHAPTER C1 GABLE END RETROFIT FOR HIGH-WIND AREAS SECTION C101 GENERAL SECTION C102 DEFINITIONS
157	SECTION C103 MATERIALS OF CONSTRUCTION [BS] TABLE C103.3 MATERIAL SPECIFICATIONS FOR RETROFITSa [BS] TABLE C103.5 NAIL AND SCREW REQUIREMENTS
158	[BS] FIGURE C103.5.3 FASTENER SPACINGS FOR LUMBER-TO-LUMBER CONNECTIONS OPERATING IN SHEAR PARALLEL TO GRAIN
159	SECTION C104 RETROFITTING GABLE END WALLS TO ENHANCE WIND RESISTANCE [BS] FIGURE C104.1 BASIC GABLE END RETROFIT METHODOLOGY
160	[BS] TABLE C104.2 STUD LENGTH LIMITATIONS BASED ON EXPOSURE AND DESIGN WIND SPEED [BS] FIGURE C104.2(1) TRUSS FRAMED GABLE END
161	[BS] FIGURE C104.2(2) CONVENTIONALLY FRAMED GABLE END L-BENT STRAP [BS] FIGURE C104.2(3) TRUSS FRAMED GABLE END U-BENT STRAP
162	[BS] FIGURE C104.2(4) CONVENTIONALLY FRAMED GABLE END U-BENT STRAP
163	[BS] FIGURE C104.2.3 OMITTED HORIZONTAL BRACE
165	[BS] FIGURE C104.2.4(1) LADDER BRACING FOR OMITTED RETROFIT STUD (GABLE END FRAME) [BS] FIGURE C104.2.4(2) LADDER BRACING FOR OMITTED RETROFIT STUD (CONVENTIONALLY FRAMED GABLE END)
166	[BS] FIGURE C104.2.5 ANCHOR BLOCK INSTALLATION
167	[BS] FIGURE C104.2.7 DETAIL OF RETROFIT TIE INSTALLATION
168	[BS] FIGURE C104.2.8(1) SPLICED HORIZONTAL BRACES
169	[BS] FIGURE C104.2.8(2) SPLICED HORIZONTAL BRACES [BS] FIGURE C104.2.8(3) SPLICED HORIZONTAL BRACES
170	[BS] FIGURE C104.3 METHOD OF INSTALLING RETROFIT STUDS
171	[BS] FIGURE C104.3.4 NAIL PLATE FASTENING
172	[BS] TABLE C104.4.1 ELEMENT SIZING AND SPACING FOR L-BENT RETROFIT METHOD
173	[BS] TABLE C104.4.2 ELEMENT SIZING AND SPACING FOR U-BENT RETROFIT METHOD [BS] TABLE C104.5.1 SPACING OF GUSSET ANGLES
174	[BS] FIGURE C104.3.8 RETROFIT STUD SPLICES
175	[BS] TABLE C104.5.2 SPACING OF LAG OR MASONRY SCREWS USED TO CONNECT SILL PLATE OF GABLE END WALL TO TOP OF THE WALL BELOW
176	CHAPTER C2 ROOF DECK FASTENING FOR HIGH-WIND AREAS SECTION C201 GENERAL SECTION C202 ROOF DECK ATTACHMENT FOR WOOD ROOFS
177	[BS] TABLE C202.1.2 SUPPLEMENT FASTENERS AT PANEL EDGES AND INTERMEDIATE FRAMING
178	CHAPTER C3 REFERENCED STANDARDS SECTION C301 REFERENCED STANDARDS [BS] TABLE C301.1 REFERENCED STANDARDS
180	APPENDIX D BOARD OF APPEALS SECTION D101 GENERAL
182	RESOURCE A GUIDELINES ON FIRE RATINGS OF ARCHAIC MATERIALS AND ASSEMBLIES INTRODUCTION PURPOSE
183	1 FIRE-RELATED PERFORMANCE OF ARCHAIC MATERIALS AND ASSEMBLIES 1.1 FIRE PERFORMANCE MEASURES TUNNEL TEST RESULTS FOR EIGHT SPECIES OF LUMBER
184	1.2 COMBUSTIBLE CONSTRUCTION TYPES 2 BUILDING EVALUATION 2.1 PRELIMINARY EVALUATION
185	FIGURE 1 PRELIMINARY EVALUATION FIELD NOTES
186	FIGURE 2 PRELIMINARY EVALUATION WORKSHEET
187	2.2 FIRE RESISTANCE OF EXISTING BUILDING ELEMENTS 2.3 EFFECTS OF PENETRATIONS IN FIRE-RESISTANT ASSEMBLIES 3 FINAL EVALUATION AND DESIGN SOLUTION
188	3.1 THE EXPERIMENTAL APPROACH 3.2 THE THEORETICAL APPROACH HARMATHY’S TEN RULES
190	ILLUSTRATION OF HARMATHY’S RULES EXAMPLE APPLICATION OF HARMATHY’S RULES
192	3.3“ THICKNESS DESIGN” STRATEGY 3.4 EVALUATION OF DOORS
193	FIGURE 3 MODIFICATION DETAILS
194	4 SUMMARY
196	APPENDIX INTRODUCTION RESOURCE A TABLE OF CONTENTS
198	PURPOSE AND PROCEDURE
199	SECTION I – WALLS FIGURE 1.1.1 MASONRY WALLS 0″ TO LESS THAN 4″ THICK TABLE 1.1.1 MASONRY WALLS 0″ TO LESS THAN 4″ THICK
200	TABLE 1.1.1—continued MASONRY WALLS 0″ TO LESS THAN 4″ THICK
201	TABLE 1.1.1—continued MASONRY WALLS 0″ TO LESS THAN 4″ THICK
202	FIGURE 1.1.2 MASONRY WALLS 4″ TO LESS THAN 6″ THICK TABLE 1.1.2 MASONRY WALLS 4″ TO LESS THAN 6″ THICK
203	TABLE 1.1.2—continued MASONRY WALLS 4″ TO LESS THAN 6″ THICK
204	TABLE 1.1.2—continued MASONRY WALLS 4″ TO LESS THAN 6″ THICK
205	TABLE 1.1.2—continued MASONRY WALLS 4″ TO LESS THAN 6″ THICK
206	TABLE 1.1.2—continued MASONRY WALLS 4″ TO LESS THAN 6″ THICK
207	TABLE 1.1.2—continued MASONRY WALLS 4″ TO LESS THAN 6″ THICK
208	TABLE 1.1.2—continued MASONRY WALLS 4″ TO LESS THAN 6″ THICK
209	FIGURE 1.1.3 MASONRY WALLS 6″ TO LESS THAN 8″ THICK TABLE 1.1.3 MASONRY WALLS 6″ TO LESS THAN 8″ THICK
210	TABLE 1.1.3—continued MASONRY WALLS 6″ TO LESS THAN 8″ THICK
211	TABLE 1.1.3—continued MASONRY WALLS 6″ TO LESS THAN 8″ THICK
212	TABLE 1.1.3—continued MASONRY WALLS 6″ TO LESS THAN 8″ THICK
213	TABLE 1.1.3—continued MASONRY WALLS 6″ TO LESS THAN 8″ THICK
214	FIGURE 1.1.4 MASONRY WALLS 8″ TO LESS THAN 10″ THICK TABLE 1.1.4 MASONRY WALLS 8″ TO LESS THAN 10″ THICK
215	TABLE 1.1.4—continued MASONRY WALLS 8″ TO LESS THAN 10″ THICK
216	TABLE 1.1.4—continued MASONRY WALLS 8″ TO LESS THAN 10″ THICK
217	TABLE 1.1.4—continued MASONRY WALLS 8″ TO LESS THAN 10″ THICK
218	TABLE 1.1.4—continued MASONRY WALLS 8″ TO LESS THAN 10″ THICK
219	TABLE 1.1.4—continued MASONRY WALLS 8″ TO LESS THAN 10″ THICK
220	TABLE 1.1.4—continued MASONRY WALLS 8″ TO LESS THAN 10″ THICK
221	TABLE 1.1.4—continued MASONRY WALLS 8″ TO LESS THAN 10″ THICK
222	FIGURE 1.1.5 MASONRY WALLS 10″ TO LESS THAN 12″ THICK TABLE 1.1.5 MASONRY WALLS 10″ TO LESS THAN 12″ THICK
223	TABLE 1.1.5—continued MASONRY WALLS 10″ TO LESS THAN 12″ THICK
224	TABLE 1.1.5—continued MASONRY WALLS 10″ TO LESS THAN 12″ THICK
225	TABLE 1.1.5—continued MASONRY WALLS 10″ TO LESS THAN 12″ THICK
226	FIGURE 1.1.6 MASONRY WALLS 12″ TO LESS THAN 14″ THICK TABLE 1.1.6 MASONRY WALLS 12″ TO LESS THAN 14″ THICK
227	TABLE 1.1.6—continued MASONRY WALLS 12″ TO LESS THAN 14″ THICK
228	TABLE 1.1.6—continued MASONRY WALLS 12″ TO LESS THAN 14″ THICK
229	TABLE 1.1.6—continued MASONRY WALLS 12″ TO LESS THAN 14″ THICK
230	TABLE 1.1.6—continued MASONRY WALLS 12″ TO LESS THAN 14″ THICK
231	TABLE 1.1.6—continued MASONRY WALLS 12″ TO LESS THAN 14″ THICK
232	FIGURE 1.1.7 MASONRY WALLS 14″ OR MORE THICK TABLE 1.1.7 MASONRY WALLS 14″ OR MORE THICK
233	TABLE 1.1.7—continued MASONRY WALLS 14″ OR MORE THICK
234	TABLE 1.1.7—continued MASONRY WALLS 14″ OR MORE THICK
235	FIGURE 1.2.1 METAL FRAME WALLS 0″ TO LESS THAN 4″ THICK TABLE 1.2.1 METAL FRAME WALLS 0″ TO LESS THAN 4″ THICK
236	TABLE 1.2.1—continued METAL FRAME WALLS 0″ TO LESS THAN 4″ THICK
237	TABLE 1.2.1—continued METAL FRAME WALLS 0″ TO LESS THAN 4″ THICK
238	TABLE 1.2.1—continued METAL FRAME WALLS 0″ TO LESS THAN 4″ THICK
239	FIGURE 1.2.2 METAL FRAME WALLS 4″ TO LESS THAN 6″ THICK TABLE 1.2.2 METAL FRAME WALLS 4″ TO LESS THAN 6″ THICK
240	TABLE 1.2.2—continued METAL FRAME WALLS 4″ TO LESS THAN 6″ THICK
241	TABLE 1.2.3 METAL FRAME WALLS 6″ TO LESS THAN 8″ THICK
242	TABLE 1.2.4 METAL FRAME WALLS 8″ TO LESS THAN 10″ THICK
243	TABLE 1.3.1 WOOD FRAME WALLS 0″ TO LESS THAN 4″ THICK
244	FIGURE 1.3.2 WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK TABLE 1.3.2 WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
245	TABLE 1.3.2—continued WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
246	TABLE 1.3.2—continued WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
247	TABLE 1.3.2—continued WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
248	TABLE 1.3.2—continued WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
249	TABLE 1.3.2—continued WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
250	TABLE 1.3.2—continued WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
251	TABLE 1.3.2—continued WOOD FRAME WALLS 4″ TO LESS THAN 6″ THICK
252	TABLE 1.3.3 WOOD FRAME WALLS 6″ TO LESS THAN 8″ THICK TABLE 1.4.1 MISCELLANEOUS MATERIALS WALLS 0″ TO LESS THAN 4″ THICK
253	TABLE 1.4.2 MISCELLANEOUS MATERIALS WALLS 4″ TO LESS THAN 6″ THICK
254	FIGURE 1.5.1 FINISH RATINGS—INORGANIC MATERIALS TABLE 1.5.1 FINISH RATINGS—INORGANIC MATERIALS
255	TABLE 1.5.1—continued FINISH RATINGS—INORGANIC MATERIALS TABLE 1.5.2 FINISH RATINGS—ORGANIC MATERIALS
256	SECTION II COLUMNS TABLE 2.1.1 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 0″ TO LESS THAN 6″
257	FIGURE 2.1.2 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 10″ TO LESS THAN 12″ TABLE 2.1.2 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 10″ TO LESS THAN 12″
258	TABLE 2.1.2—continued REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 10″ TO LESS THAN 12″
259	TABLE 2.1.2—continued REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 10″ TO LESS THAN 12″
260	TABLE 2.1.3 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 12″ TO LESS THAN 14″
261	TABLE 2.1.4 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 14″ TO LESS THAN 16″
262	FIGURE 2.1.5 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 16″ TO LESS THAN 18″ TABLE 2.1.5 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 16″ TO LESS THAN 18″
263	TABLE 2.1.5—continued REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 16″ TO LESS THAN 18″
264	TABLE 2.1.6 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 18″ TO LESS THAN 20″
265	FIGURE 2.1.7 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 20″ TO LESS THAN 22″ TABLE 2.1.7 REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 20″ TO LESS THAN 22″
266	TABLE 2.1.7—continued REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 20″ TO LESS THAN 22″ TABLE 2.1.8 HEXAGONAL REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 12″ TO LESS THAN 14″
267	TABLE 2.1.9 HEXAGONAL REINFORCED CONCRETE COLUMNS MINIMUM DIMENSION 14″ TO LESS THAN 16″ TABLE 2.1.10 HEXAGONAL REINFORCED CONCRETE COLUMNS DIAMETER—16″ TO LESS THAN 18″ TABLE 2.1.11 HEXAGONAL REINFORCED CONCRETE COLUMNS DIAMETER—20″ TO LESS THAN 22″
268	TABLE 2.2 ROUND CAST IRON COLUMNS
269	FIGURE 2.3 STEEL COLUMNS—GYPSUM ENCASEMENTS TABLE 2.3 STEEL COLUMNS—GYPSUM ENCASEMENTS
270	TABLE 2.3—continued STEEL COLUMNS—GYPSUM ENCASEMENTS TABLE 2.4 TIMBER COLUMNS MINIMUM DIMENSION TABLE 2.5.1.1 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION LESS THAN 6
271	TABLE 2.5.1.2 STEEL COLUMNS—CONCRETE ENCASEMENTS 6″ TO LESS THAN 8″ THICK
272	FIGURE 2.5.1.3 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 8″ TO LESS THAN 10″ TABLE 2.5.1.3 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 8″ TO LESS THAN 10″
273	TABLE 2.5.1.3—continued STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 8″ TO LESS THAN 10″
274	FIGURE 2.5.1.4 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 10″ TO LESS THAN 12″ TABLE 2.5.1.4 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 10″ TO LESS THAN 12″
275	TABLE 2.5.1.4—continued STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 10″ TO LESS THAN 12″
276	TABLE 2.5.1.4—continued STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 10″ TO LESS THAN 12″
277	TABLE 2.5.1.4—continued STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 10″ TO LESS THAN 12″
278	FIGURE 2.5.1.5 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 12″ TO LESS THAN 14″ TABLE 2.5.1.5 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 12″ TO LESS THAN 14″
279	TABLE 2.5.1.5—continued STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 12″ TO LESS THAN 14″
280	FIGURE 2.5.1.6 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 14″ TO LESS THAN 16″ TABLE 2.5.1.6 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 14″ TO LESS THAN 16″
281	TABLE 2.5.1.6—continued STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 14″ TO LESS THAN 16″
282	TABLE 2.5.1.7 STEEL COLUMNS—CONCRETE ENCASEMENTS MINIMUM DIMENSION 16″ TO LESS THAN 18″ TABLE 2.5.2.1 STEEL COLUMNS—BRICK AND BLOCK ENCASEMENTS MINIMUM DIMENSION 10″ TO LESS THAN 12″
283	TABLE 2.5.2.2 STEEL COLUMNS—BRICK AND BLOCK ENCASEMENTS MINIMUM DIMENSION 12″ TO LESS THAN 14″ TABLE 2.5.2.3 STEEL COLUMNS—BRICK AND BLOCK ENCASEMENTS MINIMUM DIMENSION 14″ TO LESS THAN 16″
284	TABLE 2.5.3.1 STEEL COLUMNS—PLASTER ENCASEMENTS MINIMUM DIMENSION 6″ TO LESS THAN 8″ TABLE 2.5.3.2 STEEL COLUMNS—PLASTER ENCASEMENTS MINIMUM DIMENSION 8″ TO LESS THAN 10″ TABLE 2.5.4.1 STEEL COLUMNS—MISCELLANEOUS ENCASEMENTS MINIMUM DIMENSION 6″ TO LESS THAN 8″
285	TABLE 2.5.4.2 STEEL COLUMNS—MISCELLANEOUS ENCASEMENTS MINIMUM DIMENSION 8″ TO LESS THAN 10″ TABLE 2.5.4.3 STEEL COLUMNS—MISCELLANEOUS ENCASEMENTS MINIMUM DIMENSION 10″ TO LESS THAN 12″ TABLE 2.5.4.4 STEEL COLUMNS—MISCELLANEOUS ENCASEMENTS MINIMUM DIMENSION 12″ TO LESS THAN 14″
286	SECTION III FLOOR/CEILING ASSEMBLIES FIGURE 3.1 FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETE TABLE 3.1 FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETE
287	TABLE 3.1—continued FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETE
288	TABLE 3.1—continued FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETE
289	TABLE 3.1—continued FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETE
290	TABLE 3.1—continued FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETE
291	TABLE 3.1—continued FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETE
292	FIGURE 3.2 FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTS TABLE 3.2 FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTS
293	TABLE 3.2—continued FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTS
294	TABLE 3.2—continued FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTS
295	TABLE 3.2—continued FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTS
296	TABLE 3.2—continued FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTS
297	TABLE 3.2—continued FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTS
298	FIGURE 3.3 FLOOR/CEILING ASSEMBLIES—WOOD JOIST TABLE 3.3 FLOOR/CEILING ASSEMBLIES—WOOD JOIST
299	TABLE 3.3—continued FLOOR/CEILING ASSEMBLIES—WOOD JOIST
300	TABLE 3.3—continued FLOOR/CEILING ASSEMBLIES—WOOD JOIST
301	TABLE 3.3—continued FLOOR/CEILING ASSEMBLIES—WOOD JOIST
302	FIGURE 3.4 FLOOR/CEILING ASSEMBLIES—HOLLOW CLAY TILE WITH REINFORCED CONCRETE TABLE 3.4 FLOOR/CEILING ASSEMBLIES—HOLLOW CLAY TILE WITH REINFORCED CONCRETE
303	TABLE 3.4—continued FLOOR/CEILING ASSEMBLIES—HOLLOW CLAY TILE WITH REINFORCED CONCRETE
304	TABLE 3.4—continued FLOOR/CEILING ASSEMBLIES—HOLLOW CLAY TILE WITH REINFORCED CONCRETE
305	SECTION IV BEAMS TABLE 4.1.1 REINFORCED CONCRETE BEAMS DEPTH 10″ TO LESS THAN 12″
306	TABLE 4.1.1—continued REINFORCED CONCRETE BEAMS DEPTH 10″ TO LESS THAN 12″
307	TABLE 4.1.1—continued REINFORCED CONCRETE BEAMS DEPTH 10″ TO LESS THAN 12″
308	TABLE 4.1.2 REINFORCED CONCRETE BEAMS DEPTH 12″ TO LESS THAN 14″
309	TABLE 4.1.2—continued REINFORCED CONCRETE BEAMS DEPTH 12″ TO LESS THAN 14″
310	TABLE 4.1.3 REINFORCED CONCRETE BEAMS DEPTH 14″ TO LESS THAN 16″
311	TABLE 4.2.1 REINFORCED CONCRETE BEAMS—UNPROTECTED DEPTH 10″ TO LESS THAN 12″ TABLE 4.2.2 STEEL BEAMS—CONCRETE PROTECTION DEPTH 10″ TO LESS THAN 12″
312	SECTION V DOORS FIGURE 5.1 RESISTANCE OF DOORS TO FIRE EXPOSURE TABLE 5.1 RESISTANCE OF DOORS TO FIRE EXPOSURE
313	TABLE 5.1—continued RESISTANCE OF DOORS TO FIRE EXPOSURE
314	TABLE 5.1—continued RESISTANCE OF DOORS TO FIRE EXPOSURE
315	BIBLIOGRAPHY
322	INDEX
328	EDITORIAL CHANGES
330	VALUABLE GUIDES TO CHANGES IN THE 2021 I-CODES®
331	ICC EVALUATION SERVICE
332	ICC PLAN REVIEW SERVICES
333	ICC DIGITAL CODES PREMIUM

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Standard Title	International Existing Building Code, 2nd Printing
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