2012 SUPPLEMENT TO THE
FLORIDA BUILDING CODE, BUILDING
Chapter 1 - Scope and Administration
Add Item (k) to
Section 102.2 as follows:
Section 102.2 Building.
The provisions of the Florida
Building Code shall apply to the construction, erection, alteration,
modification, repair, equipment, use and occupancy, location, maintenance,
removal and demolition of every public and private building, structure or
facility or floating residential structure, or any appurtenances connected or
attached to such buildings, structures or facilities. Additions, alterations,
repairs and changes of use or occupancy group in all buildings and structures
shall comply with the provisions provided in Chapter 34 of this code. The following
buildings, structures and facilities are exempt from the Florida Building
Code as provided by law, and any further exemptions shall be as determined
by the legislature and provided by law:
(a)
– (j) [No change.]
(k) A
building or structure having less than 1,000 square feet which is constructed
and owned by a natural person for hunting and which is repaired or
reconstructed to the same dimension and condition as existed on January 1,
2011, if the building or structure:
1. Is
not rented or leased or used as a principal residence;
2. Is
not located within the 100-year floodplain according to the Federal Emergency
Management Agency’s current Flood Insurance Rate Map; and
3. Is
not connected to an off-site electric power or water supply.
Chapter 2 – Definitions
Section 202 Definitions
Add definition
of “Bedroom” as follows:
BEDROOM. A
room that can be used for sleeping and that:
[As
used in ss 381.0065 - 381.0067, Florida Statutes]
Chapter 4 – Special Detailed Requirements Based on Use and Occupancy
424.1
Public swimming pools and bathing places.
Public swimming pools and bathing places shall comply with the design and
construction standards of this section.
424.1.1 Flood hazard areas. [No change]
Change the definition
of “Department” as follows:
“Department”
means the jurisdictional building
department Department of Health.
[No change is proposed to other definitions]
Change jurisdiction
from the Department of Health as follows:
424.1.2.1 Pool structure.
Pools shall be constructed of concrete or other impervious and structurally
rigid material. All pools shall be watertight, free from structural cracks and
shall have a nontoxic smooth and slip-resistant finish. All materials shall be
installed in accordance with manufacturer's specifications unless such
specifications violate Chapter 64E-9, Florida
Administrative Code, rule requirements or the approval criteria of NSF/ANSI
Standard 50 or NSF/ANSI Standard 60.
(a)
[No change.]
(b)
One-inch (25 mm) square tile may be used if the licensed contractor provides a
signed written certification to the approving jurisdictional building department
engineer that the adhesive used on the one-inch (25 mm) square tile has
a manufacturer's tested shear strength of at least 250 psi (1724 kPa) and the
manufacturer has specified the adhesive for use underwater to adhere the type
of tile used [vitreous (glass) or ceramic]. Tiles shall not have sharp edges
exposed that could cause bather injury.
Add new Section
424.1.2.3.5 as follows:
424.1.2.3.5
Rules and regulations signage. Rules and regulations
for bathers shall be posted in minimum 1 inch letters which must be legible
from the pool deck, and shall contain the following:
1. No food or beverages in
pool or on pool wet deck.
2. No glass or animals in
the fenced pool area (or 50 feet from unfenced pool).
3. Bathing load: ___
persons.
4. Pool hours: __ a.m. to
__ p.m.
5. Shower before entering.
6. Pools of 200 square
feet in area or greater without an approved diving well configuration shall
have “NO DIVING”, in four inch letters
included with the above listed pool rules.
7. Do not swallow the pool water. This statement shall be added to signs at
pools that conduct modifications as that term is defined.
Add new Section
424.1.2.3.5 as follows:
424.1.3.3
Safety.
424.1.3.3.1
All swimming pools shall be provided with a shepherd’ s
hook securely attached to a one piece pole not less than 16 feet in length, and
at least one 18 inch diameter lifesaving ring with sufficient rope attached to
reach all parts of the pool from the pool deck. Safety equipment shall be
mounted in a conspicuous place and be readily available for use. Pools greater
than 50 feet in length shall have multiple units with at least one shepherd’ s
hook and one lifesaving ring located along each of the longer sides of the
pools. Spa pools
under 200 square feet of surface area, and interactive water
features or wading pools with two feet or less of water depth are exempt from
this requirement.
424.1.3.3.2
All pools with a slope transition shall have a safety line as required by
424.1.10.1.3. The safety line shall be in place at all times unless a lifeguard
or instructor is present.
424.1.3.3.3
Pool covers and solar blankets shall only be used during times when the pool is
closed. Unless the pool cover or solar blanket is secured around the entire
perimeter and is designed to support a live load of an adult person, the pool
area shall be inaccessible to unauthorized individuals during times of cover or
blanket use.
424.1.3.3.4
Chemicals shall be stored in a cool, dry, and well ventilated area under a roof
and the area shall be inaccessible to the public. Chemicals which emit
corrosive fumes shall not be stored in the equipment room. Empty chemical
containers shall be stored and disposed of in such a manner that they are not
accessible to the public.
424.1.3.3.5
Swimming pool slides shall be installed in accordance with manufacturer’s
specifications and sound engineering practice. Pools with slides designed for
swimming pools are not required to satisfy those of slide plunge pools in
424.1.9.2.1.
424.1.3.3.6 Floating
and climb-on devices, objects or toys that are not a part of the approved pool
design shall not be tethered in the pool or installed without engineering
modification application and department’s approval.
Change jurisdiction from the
Department of Health as follows:
424.1.4.2.3 Underwater
lighting. Underwater lighting shall utilize transformers
and low-voltage circuits with each underwater light being grounded. The maximum
voltage for each light shall be 15 volts and the maximum incandescent lamp size
shall be 300 watts. The location of the underwater lights shall be such that
the underwater illumination is as uniform as possible and shall not be less
than 18 inches (457 mm) below the normal operating water level determined by
the center-line of the skimmer or top lip of the gutter. All underwater lights
which depend upon submersion for safe operation shall have protection from
overheating when not submerged. Underwater lighting requirements can be waived
when the overhead lighting provides at least 15 footcandles (150 lux) of
illumination at the pool water surface and pool wet deck surface. Alternative
lighting systems which use 15 volts or less, or use no electricity in the pool
or on the pool deck, such as LED (light emitting diode) fiber-optic systems,
may be utilized if the applicant demonstrates to reasonable certainty that the
system development has advanced to the point where the jurisdictional
building department is convinced that the pool illumination is equal to the
requirements in Sections 424.1.4.2.1 and 424.1.4.2.2 above.
Correct format of
Table 424.1.6.1 as follows:
TABLE 424.1.6.1 PUBLIC SWIMMING
POOL—REQUIRED FIXTURE COUNT
SIZE OF POOL |
MEN'S RESTROOM |
WOMEN'S RESTROOM |
|||
Urinals |
WC |
Lavatory |
WC |
Lavatory |
|
0 - 2,500 sq. ft. |
1 |
1 |
1 |
1 |
1 |
2,501 - 5,000 sq. ft. |
2 |
1 |
1 |
5 |
1 |
5,001 - 7,500 sq. ft. |
2 |
2 |
2 |
6 |
2 |
7,501 - 10,000 sq. ft. |
3 |
2 |
3 |
8 |
3 |
For SI: 1 square foot = 0.0929 m2.
Change jurisdiction
from the Department of Health as follows:
424.1.6.5.3.1
Perimeter overflow gutters. The lip
of the gutter shall be uniformly level with a maximum tolerance of ¼ inch (6
mm) between the high and low areas. The bottom of the gutter shall be level or
slope to the drains. The spacing between drains shall not exceed 10 feet (3048
mm) for 2-inch (51 mm) drains or 15 feet (4572 mm) for 2 ½-inch (64 mm) drains,
unless hydraulically justified by the design engineer. Gutters may be
eliminated along pool edges for no more than 15 feet (4572 mm) and this shall
not exceed 10 percent of the perimeter (at least 90 percent of the perimeter
shall be guttered). In areas where gutters are eliminated, handholds shall be
provided within 9 inches (229 mm) of the water surface. Handhold design shall
be approved by the jurisdictional building department prior to
construction.
Correct filtration
rate in Section 424.1.6.5.5.1 as follows:
424.1.6.5.5.1 Filter capacities.
The maximum filtration rate in gallons per minute per square foot of filter
area shall be: 15 [20 if so approved using the procedure stated in Section
424.1.6.5.1 for high rate sand filters, 3 for rapid sand filters, 0.075 0.375
for pleated cartridge filters and 2 for Diatomaceous Earth (D.E.) type
filters].
Expand Section 424.1.6.5.10.2 to include successor standard as follows:
424.1.6.5.10.2 Outlets
shall be covered by a secured grating which requires the use of a tool to
remove and whose open area is such that the maximum velocity of water passing
through the openings does not exceed 11/2 feet per second (457 mm/s) at 100
percent of the design recirculation flow. Main drain covers/grates shall comply
with the requirements of ASME/ANSI A112.19.8-2007, or any successor
standard, and the water velocity of this section.
Correct cleaning
system criteria in Section 424.1.6.5.12 as follows:
424.1.6.5.12 Cleaning system.
A portable or plumbed in vacuum cleaning
system shall be provided. All vacuum pumps shall be equipped with hair and lint
strainers. When the system is plumbed in, the vacuum fittings shall be located
to allow cleaning the pool with a 50-foot (15240 mm) maximum length of hose.
Vacuum fittings shall be mounted approximately 12 no more than 15 inches
(305 381 mm) below the water level, flush with the pool walls,
and shall be provided with a spring loaded safety cover or flush plug cover
which shall be in place at all times when the pool is not being vacuumed.
Bag-type cleaners, which operate as ejectors on potable water supply pressure,
shall be protected by a vacuum breaker. Cleaning devices shall not be used
while the pool is open to bathers.
Change jurisdiction from the Department of
Health as follows:
424.1.6.5.14 Heaters.
Pool heaters shall comply with nationally recognized standards acceptable to
the jurisdictional building department and to the design engineer. Pools
equipped with heaters shall have a fixed thermometer mounted in the pool
recirculation line downstream from the heater outlet. Thermometers mounted on
heater outlets do not meet this requirement. A sketch of any proposed heater
installation including valves, thermometer, pipe sizes, and material
specifications shall be included in the application for permit prior to
installation. Piping and influent, effluent and bypass valves which allow
isolation or removal of the heater from the system shall be provided. Materials
used in solar and other heaters shall be nontoxic and acceptable for use with
potable water. Heaters shall not prevent the attainment of the required
turnover rate.
Delete exception to
Section 424.1.6.5.16.3 as follows:
424.1.6.5.16.3 Feeders for PH
adjustment. Feeders for PH adjustment shall be provided on
all pools., except spa pools of less than 100 square feet (9 m2)
of pool water surface area and pools utilizing erosion type chlorinators
feeding chlorinated isocyanurates. PH adjustment feeders shall be positive
displacement type, shall be adjustable from 0 to full range, and shall have an
electrical interlock with the circulation pump to prevent discharge when the
recirculation pump is not operating. When soda ash is used for PH adjustment,
the maximum concentration of soda ash solution to be fed shall not exceed ½ -pound (.2 kg) soda ash per gallon of water.
Feeders for soda ash shall be capable of feeding a minimum of 3 gallons (11 L)
of the above soda ash solution per pound of gas chlorination capacity. The
minimum size of the solution reservoirs shall not be less than 50 percent of
the maximum daily capacity of the feeder. The solution reservoirs shall be
marked to indicate the type of contents.
Change jurisdiction
from the Department of Health as follows:
424.1.6.5.16.6
Ultraviolet (UV) light disinfectant equipment may be used as supplemental water
treatment on public pools (and additional treatment on IWF's) subject to the
conditions of this paragraph and manufacturer's specifications. UV is
encouraged to be used to eliminate or reduce chlorine-resistant pathogens,
especially the protozoan Cryptosporidium.
1.
UV equipment and electrical components and wiring
shall comply with the requirements of the National Electrical Code and the
manufacturer shall provide a certification of conformance to the jurisdictional
building department.
2.
– 5. [No change]
Add new Section 424.1.6.5.17 as follows:
424.1.6.5.17
Water features such as waterfalls or fountains in pools may use up to 20% of
the return water from the filter system, however all waters used in the feature
shall not be counted toward attaining the designed turnover rate. Return piping
system shall be designed and capable of handling the additional feature flow
when the feature is turned off. Features that require more than 20% of the flow
rate shall be supplied by an additional pump that drafts from a suitable
collector tank. All water features that utilize water from the pool shall be
designed to return the water to the pool. Spray features mounted in the pool
deck shall be flush with the pool deck and shall be designed with the safety of
the pool patron in mind.
Add new Section
424.1.6.5.18 as follows:
424.1.6.5.18
Chemical quality. Chemicals used
in controlling the quality of the pool water shall be tested and approved using
the National Sanitation Foundation (NSF-ANSI) Standard 60-2005, Drinking Water
Treatment Chemicals-Health Effects dated September, 2005, which is incorporated
by reference and shall be compatible with other accepted chemicals used in
pools. The following parameters shall be adhered to for pool water treatment:
1. pH – 7.2 to 7.8.
2. Disinfection – Free
chlorine residual shall be 1 milligram per liter (mg/L) to 10 mg/L, inclusive,
in conventional swimming pools and 2 mg/L to 10 mg/L, inclusive, in all other
type pools such as spa-type pools and interactive water fountains; bromine
residual shall be 1.5 mg/L to 10 mg/L, inclusive, in conventional swimming
pools and 3 mg/L to 10 mg/L, inclusive, in all other type pools. Except that,
the following maximum disinfectant levels shall apply to indoor conventional
swimming pools: 5 mg/L free chlorine or 6 mg/L bromine.
3. When
oxidation-reduction potential controllers are required, the water potential
shall be kept between 700 and 850 millivolts. Use of these units does not
negate the manual daily testing requirement of subsection 64E-9.004(13), F.A.C.
4. Cyanuric acid – 100
mg/L maximum in pools, with 40 mg/L as the recommended maximum, and 40 mg/L
maximum in spa pools
5. Quaternary ammonium – 5
mg/L maximum
6. Copper – 1 mg/L maximum
7. Silver – 0.1 mg/L maximum
Change jurisdiction
from the Department of Health as follows:
424.1.7.2 Depths.
Wading pools shall have a maximum of 2 feet (610 mm). The depth at the
perimeter of the pool shall be uniform and shall not exceed 12 inches (305 mm).
However, where jurisdictional building
department-approved zero depth
entry designs are used, this uniform depth requirement must be met only on the
remainder of the pool outside the zero depth entry portion. The pool floor
shall not be more than 12 inches (305 mm) below the deck unless steps and
handrails are provided. Depth and "NO DIVING" markers are not
required on wading pools.
Correct lighting criteria in Section 424.1.7.8 as follows:
424.1.7.8 Lighting. Wading pools are exempt from underwater
lighting requirements but shall have overhead lighting installed for night use.
of 10 foot-candles if indoors or 6 foot-candles for outdoor night use. Such
illumination shall be provided over the pool water surface and the pool deck
surface.
Add Section
424.1.7.9 as follows:
424.1.7.9 Automated Oxidation Reduction Potential (ORP) and pH
controllers with sensing probes shall be provided to assist in maintaining
proper disinfection and pH levels.
Add Sections 424.1.8.12
– 424.1.8.15 as follows:
424.1.8.12 Automated
Controllers. Automated Oxidation Reduction Potential (ORP) and pH
controllers with sensing probes shall be provided on spa pools to assist in
maintaining proper disinfection and pH levels.
424.1.8.13 In addition to the
requirements of 424.1.2.3.5 spa pool signs shall include the following:
1.
Maximum water temperature 104º F.
2.
Children under twelve must have adult supervision.
3.
Pregnant women, small children, people with health problems and people using alcohol,
narcotics or other drugs that cause drowsiness should not use spa pools without
first consulting a doctor.
4. Maximum use 15
minutes.
424.1.8.14 A
clock shall be visible from the spa pool to assist the patron in meeting the
requirement of 424.1.8.13 4. above.
424.1.8.15 If a spa is equipped with an emergency
cut-off or kill switch, provisions for a minimum 80 decibel audible alarm near
the spa to sound continuously until deactivated when such device is triggered
shall be incorporated. This is to alert pool patrons and operators of a
potential public health situation or to indicate that the spa filtration and
treatment system may be off. The following additional rule sign shall be
visible by the spa which reads “ALARM INDICATES SPA PUMPS OFF. DO NOT USE SPA
WHEN ALARM SOUNDS UNTIL ADVISED OTHERWISE.”
Change jurisdiction
from the Department of Health as follows:
424.1.9.2.1.3.1 The slide flume terminus shall
be designed by the design engineer who can demonstrate to the jurisdictional
building department's satisfaction that riders will be adequately slowed
prior to discharge so as to prevent injury or harm to the rider upon impact
with the plunge pool water. The slide terminus shall be flush with the pool
wall and located at or below the pool water level.
Correct recirculation rate of Section 424.1.9.2.6.1 as follows:
424.1.9.2.6.1 Recirculation rate. The recirculation-filtration
system of water slides shall recirculate and filter a water volume equal to the
total water volume of the facility in a period of 32 hours or
less.
Change jurisdiction
from the Department of Health as follows:
424.1.9.3.1 Water activity pools shall be designed and
constructed within the limits of sound engineering practice. The design
engineer may consult with the jurisdictional building department prior
to preparation and submission of engineering plans and specifications for water
activity pools.
Add language from Ch. 64E-9.011(3)(g), FAC, as follows:
424.1.9.3.7
In addition to the requirements of 424.1.2.3.5, all water activity pool signs
shall have the following added in one inch letters:
Do not swallow
the pool water, it is recirculated.
Don not use
pool if you are ill with diarrhea.
Change jurisdiction
from the Department of Health as follows:
424.1.9.5.4 The maximum water depth of the river ride shall
not exceed 3 feet (914 mm) unless justified to the jurisdictional building department's
satisfaction by the design engineer.
Change jurisdiction
from the Department of Health as follows:
424.1.9.8.2
An automatic skimmer system shall be provided in the collector tank. A variable
height skimmer may be used or a custom surface skimmer device may be
substituted if deemed appropriate by both the design engineer and the jurisdictional
building department.
Add language from Ch.
64E-9.011(8)(c), FAC, as follows:
424.1.9.8.3 Chemical feeders shall be in accordance with
Section 424.1.6.5; except that the disinfection feeder shall be capable of
feeding 12 ppm of free chlorine to the filter return piping (based upon a
hypothetical 30-minute turnover of the contained volume within the system). Automated
Oxidation Reduction Potential (ORP) and pH controllers with sensing probes
shall be provided to assist in maintaining proper disinfection and pH levels.
Add language from Ch. 64E-9.011(8)(j), FAC, as follows:
424.1.9.8.13
In addition to the requirements of 424.1.2.3.5, all IWF pool rule signs shall
have the following added in one inch letters:
Do not swallow
the pool water, it is recirculated.
Don not use
pool if you are ill with diarrhea.
Chapter
7 - Fire and Smoke Protection Features
Correct code
references in Sections709.1 as follows:
709.1
General. The following wall assemblies shall comply with
this section.
1. Walls separating dwelling units in the
same building as required by Section 4389.2.
2. Walls separating sleeping units in the
same building as required by Section 4389.2.
3. – 6. [No change.]
Chapter 15 - Roof Assemblies and Rooftop Structures
Correct code
reference in Sections 1501.1 as follows:
1501.1 Scope. The provisions of this chapter shall govern the design, materials,
construction and quality of roof assemblies, and rooftop structures.
Exception:
Buildings and structures
located within the high-velocity hurricane zone shall comply with the
provisions of Section 1503.6 7 and Sections 1512 through 1525.
Chapter 16 – Structural Design
Correct titles to
Figures 1609A, 1609B and 1609C as follows:
FIGURE 1609A
ULTIMATE DESIGN WIND SPEEDS, Valtult FOR
RISK CATEGORY II BUILDINGS AND OTHER STRUCTURES
FIGURE 1609B
ULTIMATE DESIGN WIND SPEEDS, Valtult FOR RISK CATEGORY III AND IV BUILDINGS AND
OTHER STRUCTURES
FIGURE 1609C
ULTIMATE DESIGN WIND SPEEDS, Valtult
FOR RISK CATEGORY I BUILDINGS AND OTHER STRUCTURES
In Section 1609.1.2.4, correct wind speeds
in Sections 6.2.2.3 and 6.2.2.4 of ASTM E1996 as follows:
1609.1.2.4 Modifications to ASTM E 1996. Section 6.2.2 of ASTM E 1996 shall be
modified as follows:
6.2.2 Unless otherwise specified, select the wind zone based on the basic
wind speed as follows:
6.2.2.1 Wind
Zone 1 - 130 mph
≤ basic wind speed < 140 mph, and Hawaii.
6.2.2.2 Wind
Zone 2 - 140 mph ≤
basic wind speed < 150 mph at greater than 1.6 km (one mile) from the
coastline. The coastline shall be measured from the mean high water mark.
6.2.2.3 Wind
Zone 3 - 150 mph (58 m/s)
≤ basic wind speed < 160 170 mph (63 m/s), or 140 mph
(54 m/s) ≤ basic wind speed ≤ 160 170 mph (63 m/s)
and within 1.6 km (one mile) of the coastline. The coastline shall be measured
from the mean high water mark.
6.2.2.4 Wind
Zone 4-basic wind speed > 160 170 mph (63 m/s).
Correct code reference in Sections 1609.7 as
follows
1609.7
Garage doors and rolling doors.
Pressures from Table 16049.7(1) for wind loading actions on
garage doors and rolling doors for buildings designed as enclosed shall be
permitted.
Add Section 1612.4.1 as follows:
1612.4.1 Modification to ASCE 24-05. Table 6-1 and Section 6.2.1 in ASCE 24 shall
be modified as follows:
1. The title of Table
6.1 shall be “Minimum Elevation of Floodproofing, Relative to Base Flood
Elevation (BFE) or Design Flood Elevation (DFE), in Coastal A Zones and in
Other Flood Hazard Areas that are Not – Outside of High Risk Flood Hazard
Areas.”
2. Section 6.2.1 shall be modified to
permit dry floodproofing in Coastal A Zones, as follows: “Dry floodproofing of nonresidential
structures and nonresidential areas of mixed-use structures shall not be
allowed unless such structures are located outside of High Risk Flood Hazard
areas, and Coastal High Hazard Areas, and Coastal A Zones. Dry floodproofing shall be permitted in
Coastal A Zones provided wave loads and the potential for erosion and local
scour are accounted for in the design.”
Chapter
23 - Wood
Revise Tables 2308.9.5,
2308.9.6, 2308.10.2(1), 2308.10.2(2), 2308.10.3(1), and 2308.10.3 (2) as
follows:
TABLE 2308.9.5
HEADER AND GIRDER SPANSa,b
FOR EXTERIOR BEARING WALLS
(Maximum Spans for Douglas Fir-Larch, Hem-Fir, Southern Pine and
Spruce-Pine-Firb
and Required Number of Jack Studs)
(No change to
body of table)
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1
pound per square foot = 47.8 N/m2.
a. Spans are given in
feet and inches (ft-in).
b. Tabulated values are
for No. 2 grade lumber, except No.1 or better grade lumber shall be used for
Southern Pine 2x4’s.
c. Building width is
measured perpendicular to the ridge. For widths between those shown, spans are
permitted to be interpolated.
d. NJ - Number of jack
studs required to support each end. Where the number of required jack studs
equals one, the header is permitted to be supported by an approved framing anchor
attached to the full-height wall stud and to the header.
e. Reserved
TABLE 2308.9.6
HEADER AND GIRDER SPANSa,b FOR INTERIOR BEARING WALLS
(Maximum Spans for Douglas
Fir-Larch, Hem-Fir, Southern Pine and Spruce-Pine-Firb and
Required Number of Jack Studs)
(No change to
body of table)
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a. Spans are given in
feet and inches (ft-in).
b. Tabulated values are
for No. 2 grade lumber, except No.1 or better grade lumber shall be used for
Southern Pine 2x4’s.
c. Building width is
measured perpendicular to the ridge. For widths between those shown, spans are
permitted to be interpolated.
d. NJ - Number of jack
studs required to support each end. Where the number of required jack studs
equals one, the headers are permitted to be supported by an approved framing
anchor attached to the full-height wall stud and to the header.
TABLE
2308.10.2(1)
CEILING JOIST SPANS FOR COMMON LUMBER SPECIES
(Uninhabitable Attics Without Storage, Live
Load = 10 pounds psf, L/Ä = 240)
CEILING JOIST SPACING |
SPECIES AND GRADE |
DEAD LOAD = 5 pounds per square foot |
||||
2 × 4 2 × 6 2 × 8 2 × 10 |
||||||
Maximum ceiling joist spans |
||||||
(ft. - in.) |
(ft. - in.) |
(ft. - in.) |
(ft. - in.) |
|||
|
Douglas Fir-Larch SS |
13-2 |
20-8 |
Note a |
Note a |
|
|
Douglas Fir-Larch #1 |
12-8 |
19-11 |
Note a |
Note a |
|
|
Douglas Fir-Larch #2 |
12-5 |
19-6 |
25-8 |
Note a |
|
|
Douglas Fir-Larch #3 |
10-10 |
15-10 |
20-1 |
24-6 |
|
|
Hem-Fir SS |
12-5 |
19-6 |
25-8 |
Note a |
|
|
Hem-Fir #1 |
12-2 |
19-1 |
25-2 |
Note a |
|
|
Hem-Fir #2 |
11-7 |
18-2 |
24-0 |
Note a |
|
|
Hem-Fir #3 |
10-10 |
15-10 |
20-1 |
24-6 |
|
12 |
||||||
Southern Pine SS |
12-11 |
20-3 |
Note a |
Note a |
||
|
||||||
|
Southern Pine #1 |
12-8 |
19-11 |
Note a |
Note a |
|
|
Southern Pine #2 |
|
19-6 |
25-8 |
Note a |
|
|
Southern Pine #3 |
|
17-0 |
21-8 |
25-7 |
|
|
Spruce-Pine-Fir SS |
12-2 |
19-1 |
25-2 |
Note a |
|
|
Spruce-Pine-Fir #1 |
11-10 |
18-8 |
24-7 |
Note a |
|
|
Spruce-Pine-Fir #2 |
11-10 |
18-8 |
24-7 |
Note a |
|
|
Spruce-Pine-Fir #3 |
10-10 |
15-10 |
20-1 |
24-6 |
|
|
Douglas Fir-Larch SS |
11-11 |
18-9 |
24-8 |
Note a |
|
|
Douglas Fir-Larch #1 |
11-6 |
18-1 |
23-10 |
Note a |
|
|
Douglas Fir-Larch #2 |
11-3 |
17-8 |
23-0 |
Note a |
|
|
Douglas Fir-Larch #3 |
9-5 |
13-9 |
17-5 |
21-3 |
|
|
Hem-Fir SS |
11-3 |
17-8 |
23-4 |
Note a |
|
|
Hem-Fir #1 |
11-0 |
17-4 |
22-10 |
Note a |
|
|
Hem-Fir #2 |
10-6 |
16-6 |
21-9 |
Note a |
|
|
Hem-Fir #3 |
9-5 |
13-9 |
17-5 |
21-3 |
|
16 |
||||||
Southern Pine SS |
11-9 |
18-5 |
24-3 |
Note a |
||
|
||||||
|
Southern Pine #1 |
11-6 |
18-1 |
23-1 |
Note a |
|
|
Southern Pine #2 |
|
17-8 |
23-4 |
Note a |
|
|
Southern Pine #3 |
|
14-9 |
18-9 |
22-2 |
|
|
Spruce-Pine-Fir SS |
11-0 |
17-4 |
22-10 |
Note a |
|
|
Spruce-Pine-Fir #1 |
10-9 |
16-11 |
22-4 |
Note a |
|
|
Spruce-Pine-Fir #2 |
10-9 |
16-11 |
22-4 |
Note a |
|
|
Spruce-Pine-Fir #3 |
9-5 |
13-9 |
17-5 |
21-3 |
(continued)
TABLE
2308.10.2(1)—continued
CEILING JOIST SPANS FOR COMMON LUMBER SPECIES
(Uninhabitable Attics Without Storage, Live
Load = 10 pounds psf, L/Ä = 240)
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1
pound per square foot = 47.8 N/m2.
a. Span exceeds 26 feet in length.
Check sources for availability of lumber in lengths greater than 20
feet.
TABLE
2308.10.2(2)
CEILING JOIST SPANS FOR COMMON LUMBER SPECIES
(Uninhabitable Attics With Limited Storage,
Live Load = 20 pounds per square foot, L/Ä = 240)
(continued)
TABLE
2308.10.2(2)—continued
CEILING JOIST SPANS FOR COMMON LUMBER SPECIES
(Uninhabitable Attics With Limited Storage,
Live Load = 20 pounds per square foot, L/Ä = 240)
CEILING JOIST SPACING |
SPECIES AND GRADE |
DEAD LOAD = 10 pounds per square foot |
||||
2 × 4 |
2 × 6 |
2 × 8 |
2 × 10 |
|||
Maximum ceiling joist spans |
||||||
(ft. - in.) |
(ft. - in.) |
(ft. - in.) |
(ft. - in.) |
|||
|
Douglas Fir-Larch SS |
8-11 |
14-0 |
18-5 |
23-4 |
|
|
Douglas Fir-Larch #1 |
8-7 |
12-6 |
15-10 |
19-5 |
|
|
Douglas Fir-Larch #2 |
8-0 |
11-9 |
14-10 |
18-2 |
|
|
Douglas Fir-Larch #3 |
6-1 |
8-10 |
11-3 |
13-8 |
|
|
Hem-Fir SS |
8-5 |
13-3 |
17-5 |
22-3 |
|
|
Hem-Fir #1 |
8-3 |
12-3 |
15-6 |
18-11 |
|
|
Hem-Fir #2 |
7-10 |
11-7 |
14-8 |
17-10 |
|
|
Hem-Fir #3 |
6-1 |
8-10 |
11-3 |
13-8 |
|
19.2 |
|
|
|
|
|
|
Southern Pine SS |
8-9 |
13-9 |
18-1 |
23-1 |
||
|
||||||
|
Southern Pine #1 |
8-7 |
13-6 |
17-9 |
21-1 |
|
|
Southern Pine #2 |
|
12-3 |
15-10 |
18-11 |
|
|
Southern Pine #3 |
|
9-6 |
12-1 |
14-4 |
|
|
Spruce-Pine-Fir SS |
8-3 |
12-11 |
17-1 |
21-8 |
|
|
Spruce-Pine-Fir #1 |
8-0 |
11-9 |
14-10 |
18-2 |
|
|
Spruce-Pine-Fir #2 |
8-0 |
11-9 |
14-10 |
18-2 |
|
|
Spruce-Pine-Fir #3 |
6-1 |
8-10 |
11-3 |
13-8 |
|
|
Douglas Fir-Larch SS |
8-3 |
13-0 |
17-1 |
20-11 |
|
|
Douglas Fir-Larch #1 |
7-8 |
11-2 |
14-2 |
17-4 |
|
|
Douglas Fir-Larch #2 |
7-2 |
10-6 |
13-3 |
16-3 |
|
|
Douglas Fir-Larch #3 |
5-5 |
7-11 |
10-0 |
12-3 |
|
|
Hem-Fir SS |
7-10 |
12-3 |
16-2 |
20-6 |
|
|
Hem-Fir #1 |
7-6 |
10-11 |
13-10 |
16-11 |
|
|
Hem-Fir #2 |
7-1 |
10-4 |
13-1 |
16-0 |
|
|
Hem-Fir #3 |
5-5 |
7-11 |
10-0 |
12-3 |
|
24 |
|
|
|
|
|
|
Southern Pine SS |
8-1 |
12-9 |
16-10 |
21-6 |
||
|
||||||
|
Southern Pine #1 |
8-0 |
12-6 |
15-10 |
18-10 |
|
|
Southern Pine #2 |
|
11-0 |
14-2 |
16-11 |
|
|
Southern Pine #3 |
|
8-6 |
10-10 |
12-10 |
|
|
Spruce-Pine-Fir SS |
7-8 |
12-0 |
15-10 |
19-5 |
|
|
Spruce-Pine-Fir #1 |
7-2 |
10-6 |
13-3 |
16-3 |
|
|
Spruce-Pine-Fir #2 |
7-2 |
10-6 |
13-3 |
16-3 |
|
|
Spruce-Pine-Fir #3 |
5-5 |
7-11 |
10-0 |
12-3 |
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot =
47.8 N/m2.
a. Span exceeds 26 feet in length.
Check sources for availability of lumber in lengths greater than 20
feet.
TABLE
2308.10.3(1)
RAFTER SPANS FOR COMMON LUMBER SPECIES
(Roof Live Load = 20 pounds per square foot,
Ceiling Not Attached to Rafters, L/Ä = 180)
RAFTER |
SPECIES
AND GRADE |
DEAD
LOAD = 10 pounds per square foot |
DEAD
LOAD = 20 pounds per square foot |
||||||||||
2 × 4 |
2 × 6 |
2 × 8 |
2 × 10 |
2 × 12 |
2 × 4 |
2 × 6 |
2 × 8 |
2 × 10 |
2 × 12 |
||||
Maximum
rafter spans |
|||||||||||||
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
(ft.
- in.) |
||||
|
Douglas Fir-Larch SS |
11-6 |
18-0 |
23-9 |
Note a |
Note a |
11-6 |
18-0 |
23-5 |
Note a |
Note a |
||
|
Douglas Fir-Larch #1 |
11-1 |
17-4 |
22-5 |
Note a |
Note a |
10-6 |
15-4 |
19-5 |
23-9 |
Note a |
||
|
Douglas Fir-Larch #2 |
10-10 |
16-7 |
21-0 |
25-8 |
Note a |
9-10 |
14-4 |
18-2 |
22-3 |
25-9 |
||
|
Douglas Fir-Larch #3 |
8-7 |
12-6 |
15-10 |
19-5 |
22-6 |
7-5 |
10-10 |
13-9 |
16-9 |
19-6 |
||
|
Hem-Fir SS |
10-10 |
17-0 |
22-5 |
Note a |
Note a |
10-10 |
17-0 |
22-5 |
Note a |
Note a |
||
|
Hem-Fir #1 |
10-7 |
16-8 |
21-10 |
Note a |
Note a |
10-3 |
14-11 |
18-11 |
23-2 |
Note a |
||
|
Hem-Fir #2 |
10-1 |
15-11 |
20-8 |
25-3 |
Note a |
9-8 |
14-2 |
17-11 |
21-11 |
25-5 |
||
|
Hem-Fir #3 |
8-7 |
12-6 |
15-10 |
19-5 |
22-6 |
7-5 |
10-10 |
13-9 |
16-9 |
19-6 |
||
12 |
|
|
|
|
|
|
|
|
|
|
|
||
Southern Pine SS |
11-3 |
17-8 |
23-4 |
Note a |
Note a |
11-3 |
17-8 |
23-4 |
Note a |
Note a |
|||
|
|||||||||||||
|
Southern Pine #1 |
11-1 |
17-4 |
22-11 |
Note a |
Note a |
11-1 |
17-3 |
21-9 |
25-10 |
Note a |
||
|
Southern Pine #2 |
|
17-0 |
22-5 |
Note a |
Note a |
|
15-1 |
19-5 |
23-2 |
Note a |
||
|
Southern Pine #3 |
|
13-6 |
17-2 |
20-3 |
24-1 |
|
11-8 |
14-10 |
17-6 |
20-11 |
||
|
Spruce-Pine-Fir SS |
10-7 |
16-8 |
21-11 |
Note a |
Note a |
10-7 |
16-8 |