HomeMy WebLinkAbout1026 TURNSTONE RD; ; CBR2025-2492; PermitBuilding Permit Finaled
Residential Permit
Print Date: 05/15/2026 Permit No:CBR2025-2492
Job Address:1026 TURNSTONE RD, CARLSBAD, CA 92011 Status:Closed - Finaled
Permit Type:BLDG-Residential Work Class:Solar/Photovoltaic
Parcel #:2110911500 Track #:Applied:09/29/2025
Valuation:$16,000.00 Lot #:Issued:10/11/2025
Occupancy Group:Project #:Finaled Close Out:12/29/2025
#of Dwelling Units:Plan #:
Bedrooms:Construction Type:Final Inspection:12/29/2025
Bathrooms:Orig. Plan Check #:
Plan Check #:
INSPECTOR:Renfro, Chris
Occupant Load:
Code Edition:
Sprinkled:
Project Title:
Description:RESIDENTIAL ROOF MOUNT PV SYSTEM 40 MODULES / 17.40KW (2) TESLA POWERWALL 3 (E-REVIEW)
Applicant:
SOLAR OPTIMUM INC
CHRIS WOLF
614 W COLORADO ST
GLENDALE, CA 91204-1104
(818) 804-3122
Property Owner: Contractor:
SOLAR OPTIMUM INC614 W COLORADO ST
GLENDALE, CA 91204-1104
(818) 804-3122
FEE AMOUNT
BUILDING PLAN CHECK $408.20
SB1473 – GREEN BUILDING STATE STANDARDS FEE $1.00
SOLAR–RESIDENTIAL: BATTERY BACK-UP $210.00
SOLAR–RESIDENTIAL: per kW $418.00
STRONG MOTION – RESIDENTIAL (SMIP)$2.08
Total Fees:$1,039.28 Total Payments To Date:$1,039.28 Balance Due:$0.00
Please take NOTICE that approval of your project includes the "Imposition" of fees, dedications, reservations, or other exactions hereafter
collectively referred to as "fees/exaction." You have 90 days from the date this permit was issued to protest imposition of these
fees/exactions. If you protest them, you must follow the protest procedures set forth in Government Code Section 66020(a), and file the
protest and any other required information with the City Manager for processing in accordance with Carlsbad Municipal Code Section
3.32.030. Failure to timely follow that procedure will bar any subsequent legal action to attack, review, set aside, void, or annul their
imposition.
You are hereby FURTHER NOTIFIED that your right to protest the specified fees/exactions DOES NOT APPLY to water and sewer connection
fees and capacity changes, nor planning, zoning, grading or other similar application processing or service fees in connection with this project.
NOR DOES IT APPLY to any fees/exactions of which you have previously been given a NOTICE similar to this, or as to which the statute of
limitation has previously otherwise expired.
Building Division Page 1 of 1
1635 Faraday Avenue, Carlsbad CA 92008-7314ï 442-339-2719ï760-602-8560 fïwww.carlsbadca.gov
{city of
Carlsbad
( City of
Carlsbad
RESIDENTIAL BUILDING
PERMIT APPLICATION
FOR CITY USE ONLY
Plan Check No.: _____ _
PC Deposit: _____ _
B-1 Date: ____ _
This form shall be completed to initiate a residential building permit application. The building permit application
is not a building permit. No work shall start until a building permit is duly issued.
Job Address: 1026 Turnstone Road, Unit#: APN: 2110911soo ----·
Description of Work: PV System with Storage
Project Valuation: $_50_0_0_0 ____ Is there an active code enforcement violation on this site? □ Y iii N
Are Planning permits required?: □ Y iii N Case File Nos.: _____________ _
Please indicate the type of application(s) requested and provide the applicable information:
□ New SF: Living SF, ____ _,_. Deck SF,----""""'· Patio SF,-------'-' Garage SF,----"""'"
Is this to create a new ADU/JADU? □ Y □ N. New fireplace? □ Y □ N.
□ Remodel: ______ SF of affected area . Is the area a conversion or change of use? □ Y □ N.
□ Pool/Spa: SF. Additional Gas or Electrical Features? ___________ _
l!!I Solar: l7.40 KW, 40 Modules. Mounted: Ill Roof □ Ground. Tilt: □ Y l!!I N. RMA: □ Y l!!I N.
Battery: l!!I Y □ N. Panel Upgrade: □ Y □ N. Electric Meter Number: ___________ _
□ Plumbing, Mechanical, Electrical: _______________________ _
□ Other: ________________________________ _
APPLICANT (PRIMARY CONTACT):
Name: Anthony Espinoza
Address : 1833 S VICTORY BLVD
City: GLENDALE, State: CA Zip: 91201
Phone : 818-804-3122
Email : permitting@solaroptimum.com
DESIGN PROFESSIONAL:
Name: _____________ _
Address : ____________ _
City: ______ State: __ Zip: __ _
Phone : -------------Em a i I: _____________ _
State License: __________ _
PROPERTY OWNER:
Name: Thomas Vu
Address : 1026 Turnstone Road,
City: Carlsbad, State: CA Zip: 92011
Phone: 714-688-6418
Email : thomaskvul@gmail.com
CONTRACTOR:
Name: Solar Optimum INC
Address : 1833 S VICTORY BLVD
City: GLENDALE, State: CA Zip: 91201
Phone: 818-804-3122
Email : permitting@solaroptimum.com
CSLB License#: permitting@solarc1ass:Cl0 ---City Business License#: BLOS005245-04-2019
Billing Party: □ Applicant □ Property Owner l!!I Contractor □ Other: _____________ _
Page 1 of 4 rev 11/24
The construction, addition, or alteration of buildings is governed by the California Contractors License Law
(commencing with Business Professions Code section 7000). The law has an exemption that allows a person
who is not a California Licensed Contractor to construct a single-family residential structure and engage in
home improvements and repairs, provided they meet certain requirements. (Form B-61 provides information
about the requirements that apply to Owner-Builders makes you aware of your responsibilities and possible
risk you may incur by having a permit issued to an Owner-Builder.) Permits for multi-family projects are only
to be issued to California Licensed Contractors. Refer to Form B-16 for other frequently asked questions.
APPLICANT (PROPERTY OWNER, CONTRACTOR, OR AGENT} CERTIFICATIONS:
CHECK EACH BOX
I/We certify that I/we a legal right, interest, or entitlement to the use of the property that is the
subject of this application.
I/We understand that State law mandates the Applicant to provide an estimated value of all work
proposed (B-29 form). I/We hereby certify the construction valuation provided is accurate and
includes all proposed work such as all structural work, finish work, painting, roofing, electrical,
plumbing, heating, air conditioning, elevator, labor costs, and all permanent equipment and systems.
If the valuation is underestimated, the permit may be denied, unless the Applicant can show detailed
estimates to meet the approval of the Building Official.
If the Applicant is not the Property Owner, both the Property Owner and Applicant (authorized
Contractor or authorized Agent of the Property Owner/Contractor) must sign below. By signing this
declaration, the Property Owner authorizes the Applicant listed in this application to act as the
Property Owner's Agent on all matters before the city pertaining to development on this property.
I/We understand that State law requires construction to be done by a Licensed Contractor and the
Property Owner may apply for an Owner-Builder permit under an exemption from the law.
ii!!ii A. If the Contractor is the Applicant, the License Contractor Declaration on page 4
must be completed.
□ B. If the Applicant is an Owner-Builder, an Owner-Builder affidavit is required and
must be submitted (Form B-61). The city will not issue a building permit until this form
has been submitted. The License Contractor Declaration on page 4 does not need to
be submitted.
I/We have read this application form in its entirety and reviewed the building permit application and
the information I/we have provided is true and correct to the best of our knowledge. Grade lines as
shown on drawings accompanying this application are assumed to be correct. This certifies that the
description of the project and all the plans and supporting documentation; including the location and
labeling of all existing and proposed buildings, structures, access roads, and utilities and easements;
are accurate in all material respects as of the date when made. I/We understand that it is my
responsibility to ensure that statements and representations are not misleading. I/We agree to
promptly remove, correct, or add information as needed to correct any misleading or materially
inaccurate information. I/We understand that any misstatement or omission of the requested
information or of any information subsequently requested might be grounds for rejecting the
application, denying the application, suspending or revoking a permit issued on the basis of these or
subsequent representations, or for the seeking of such other and further relief as deemed appropriate
by the City of Carlsbad.
If a digital submittal is made or required, I/we certify that the submittal package includes digital files
that follow the city's electronic submissions standards.) Failure to submit correctly formatted
electronic files may result in the submittal being returned, which will delay intake and/or review.
Page 2 of 4 rev 11/24
I/We certify that I am (we are) aware of all permit requirements and will not willfully deviate from the
approved plan. I/We agree to comply with all applicable city and county ordinances and state laws
relating to building construction. I/We assume full responsibility for the satisfactory completion of all
work authorized under the permit(s), including work performed prior to assuming control.
After construction begins, I/we understand that a height certification, pad certification, or boundary
certification may need to be submitted to the Building Inspector, when required.
I understand that a building permit application will expire If a permit has not been issued/obtained
within one year from the application date (original filing date), unless an extension of time has been
granted (Form B-25). With some limited exceptions, if a building permit application expires and there
is interest in proceeding with the same project, a new application will be required and the project will
be subject to new fees and regulations that are in effect at the time the new application is submitted.
After submitting the application, the Billing Party designated as part of the application will be sent
future city invoices for above referenced building permit(s). I understand that if a permit fee or
development impact fee refund is issued, the check will be mailed to the financial responsible party
(the actual person or company that paid the invoice). If the information on file for the financially
responsible party is outdated or inaccurate, it must be corrected before the refund can be sent. Form
B-49B may be completed to update the financially responsible party's contact information.
I/We agree to waive, release, and discharge the City of Carlsbad ("City") and its officers, elected or
appointed officials, employees, volunteers and agents (the "Indemnified Parties") from all claims and
demands, rights and causes of action of any kind with respect to the building permit application, the
purpose of which is to challenge, attack set aside, void, modify, or annul the approval or denial of the
application, or the processing thereof, except liability caused by the Indemnified Parties' sole
negligence or willful misconduct, in which case the indemnity received by the city shall be reduced by
the amount: (a) that the city's active negligence contributed to the liability on a comparative basis; or
(b) such other amount as may be required by law. This obligation is effective without reference to the
existence or applicability of any insurance coverages which may have been required by city or any
additional insured endorsements which may extend to Indemnified Parties. Property Owner(s) and
Applicant, on behalf of themselves and all parties claiming under or through them, waive all rights of
subrogation and contribution against the Indemnified Parties while acting within the scope of their
duties, from all claims, losses and liabilities arising out of or incident to activities or operations
performed, regardless of any prior, concurrent or subsequent passive negligence by the Indemnified
Parties.
By signing below, I acknowledge that I have completely read, understand, and agree to the declarations above
and accept all terms set forth herein. (This section must be signed by both parties if not the same individual.)
09/25/25 Date: __________ _
Signature of Property Owner
09/25/25 Date: __________ _
Signature of Applicant
Page 3 of 4 rev 11/24
CONTRACTOR CERTIFICATIONS:
License Contractor Declarations
CHECK EACH BOX
I ti' I I hereby affirm under penalty of perjury that I am a licensed under provisions of Chapter 9
(commencing with section 7000) of Division 3 of the Business and Professions Code, and the license is
in full force and effect. lvl wARNING: FAILURE To sEcuRE woRKERs' coMPENsATION covERAGE Is uNLAwFuL AND sHALL
SUBJECT AN EMPLOYER TO CRIMINAL PENALTIES AND CIVIL FINES UP TO ONE HUNDRED THOUSAND
DOLLARS ($100,000), IN ADDITION TO THE COST OF COMPENSATION, DAMAGES AS PROVIDED FOR IN
SECTION 3706 OF THE LABOR CODE, INTEREST, AND ATTORNEY'S FEES. Place a check mark next to the
declaration regarding the workers' compensation coverage that applies. Check only one (A), (B), or (C):
□ A. I have and will maintain a certificate of consent to self-insure for workers'
compensation, issued by the Director of Industrial Relations as provided for by Section
3700 of the Labor Code, for the performance of the work for which this permit is
issued.
l!!I B. I have and will maintain workers' compensation insurance, as required by
Section 3700 of the Labor Code, for the performance of the work for which this permit
is issued. My workers' compensation insurance carrier and policy number are:
PRAETORIAN INSURANCE COMPANY-Policy Number: 202000110
□ C. I certify that, in the performance of the work for which this permit is issued, I
shall not employ any person in any manner so as to become subject to the workers'
compensation laws of California, and agree that, if I should become subject to the
workers' compensation provisions of Section 3700 of the Labor Code, I shall forth with
comply with those provisions.
I hereby affirm under penalty of perjury that there is a construction lending agency for the
performance of the work for which this permit is issued (Civil Code section 3097). If not using a
construction lending agency write N/A: Lender: _N_tA _________________ _
I understand that I will need a current Carlsbad business license to obtain the building permit.
By signing below, I acknowledge that I have completely read, understand, and agree to the declarations above
and accept all terms set forth herein.
Date: 09/29/25
Signature of Contractor
FOR CITY USE ONLY
Receipt Acknowledgement: ____________ _ Date: _________ _
BUILDING STAFF
Page 4 of 4 rev 11/24
Docusign Envelope ID: F58634ED-21C7-4D43-9A11-29F2680ECF3C
{city of
Carlsbad
RESIDENTIAL SOLAR
(Property Owner Consent Form)
B-13A
Community Development
Building Division
1635 Faraday Avenue
442-339-2719 or via email
at Building@CarlsbadCA.gov
I hereby authorize the following company/person(s) to act as my agent(s) to apply for, sign, and file the
documents necessary to obtain a building permit for the installation of a solar photovoltaic system at my
property.
AUTHORIZED AGENT
Company name: Solar Optimum INC
Company address: 1833 S VICTORY BLVD GLENDALE, CA 91201
Representative name: Anthony Espinoza ----------------------------
Phone number: 818-804-3122
Email address: permitting@solaroptimum.com
PROJECT INFORMATION
Property address: 1026 Turnstone Road, Carlsbad, CA 92011
Project description: Residential Roof Mount PV System
40 modules / 17.40kW
(2) Tesla Powerwall 3
I declare under penalty of perjury that I am the property owner for the address listed above and have
reviewed the above information and certify its accuracy.
ODocuSigned by:
fL~o.,S VU-
481 EBDP387754CD
Property owner (print)
Thomas Vu
Property owner (signature)
9/29/2025
Date
The Property Owner's signature is required. An electronic signature, generated through industry standard electronic signature
applications such as Docusign and Adobe Sign & Signature, will be accepted. However, the Agent/Contractor is not authorized to
sign on behalf of the Property Owner.
Form B-13A; September 2022 Page 1 of 1
Building Permit Inspection History Finaled
Address:1026 TURNSTONE RD
CARLSBAD, CA 92011IVR Number:66292
06/29/2026
Actual
Start Date
Inspection Type Inspection No.Inspection
Status
Primary InspectorScheduled
Date
Reinspection
Expiration Date:Status:
PERMIT INSPECTION HISTORY for (CBR2025-2492)
Permit Type:BLDG-Residential Application Date:09/29/2025
Closed - Finaled
Owner:
Work Class:Solar/Photovoltaic Issue Date:10/11/2025 Subdivision:CARLSBAD TCT#94-11
Inspection
12/23/2025 12/23/2025 BLDG-35 Solar Panel 303946-2025 Failed Chris Renfro Reinspection Incomplete
Checklist Item COMMENTS Passed
BLDG-Building Deficiency Missing photos of heat detector in garage for battery
Backup storage systems installed in garages. Needs to be
interconnected to smoke alarm system inside home. Need
UFER or ground rods verification
No
12/29/2025 12/29/2025 BLDG-34 Rough Electrical 304441-2025 Passed Chris Renfro Complete
Checklist Item COMMENTS Passed
BLDG-Building Deficiency Yes
Checklist Item COMMENTS Passed
BLDG-Building Deficiency Yes
Checklist Item COMMENTS Passed
BLDG-Building Deficiency Yes
Checklist Item COMMENTS Passed
BLDG-Building Deficiency Yes
BLDG-Structural Final Yes
BLDG-Electrical Final Yes
Friday, May 15, 2026 Page 1 of 1
{city of
Carlsbad
Page 1 of 7
SOLAR
OP'TIMUM
STRUCTURAL
CALCULATIONS
for
SOLAR ELECTRIC SYSTEM FOR
THOMAS VU
AT
1026 TURNSTONE ROAD,
CARLSBAD, CA 92011, USA
Solar Optimum, Inc., 614 W. Colorado St., Glendale, CA 91204
Tel: (818)745-1475
PROJECT :
CLIENT :
JOB NO.:
INPUT DATA
Exposure category (B, c or D)
Importance factor, pg 77, (0.87, 1.0 or 1.15)
Basic wind speed (IBC Tab 1609.3.1V35)
Topographic factor (Sec.6.5.7.2, pg 26 & 45)
Page 2 of7
C
I = 1.00
V = 110
Kzt =
PAGE :
DESIGN BY :
DATE : REVIEW BY:
Category II
mph
Flat
Building height to eave
Building height to ridge
Building length
l1I he= 18 ft ~ hr= 25 ft
L = 70 ft B
Building width
Effective area of components
DESIGN SUMMARY
Max horizontal force normal to building length, L, face
Max horizontal force normal to building length, B, face
Max total horizontal torsional load
Max total u ward force
ANALYSIS
Velocity pressure
qh = 0.00256 Kh Kzt l<,i V2 I
B = 55 ft
A= 11 tt2
22.38 psf
where: qh = velocity pressure at mean roof height, h. (Eq. 6-15, page 27)
21.49 kips
23.33 kips
188.16 ft-kips
70.99 ki s
Kh = velocity pressure exposure coefficient evaluated at height, h, (Tab. 6-3, Case 1,pg 79)
Kd = wind directionality factor. (Tab. 6-4, for building, page 80)
=
=
h = mean roof height
Design pressures for MWFRS
P = qh [(G Cpt )-(G Cp; )]
=
< 60 ft, [Satisfactory)
< Min (L, B), [Satisfactory]
0.91
0.85
21 .50 ft
where: p = pressure in appropriate zone. (Eq. 6-18, page 28). Pmin = 10 psf (Sec. 6.1.4.1 & 6.1.4.2)
G Cpr = product of gust effect factor and external pressure coefficient, see table below. (Fig. 6-10, page 53 & 54)
G CP; = product of gust effect factor and internal pressure coefficient.(Fig. 6-5, Enclosed Building, page 47)
= 0.18 or -0.18
a= width of edge strips, Fig 6-10, note 9, page 54, MAX[ MIN(0.1B, 0.4h), 0.04B,3] = 6.00 ft
Net Pressures (psf), Basic Load Cases Net Pressures (psf), Torsional Load Cases
Roof anale 0 = 13.13 Roof anale 0 = 0.00 Roof anale 0 = 13.13
Surface Net Pressure with Net Pressure with Surface Net Pressure with GCpr (+GCp;) (-GCp;) GCpr (+GCp;)
1 0.47 6.98 15.62 0.40 5.28
2 -0.69 -20.89 -12.25 -0.69 -20.89
3 -0.43 -14.64 -5.99 -0.37 -13.21
4 -0.37 -13.11 -4.46 -0.29 -11 .29
1E 0.71 12.80 21.44 0.61 10.33
2E -1.07 -30.02 -21 .37 -1 .07 -30.02
3E -0.62 -19.13 -10.49 -0.53 -17.05
4E -0.54 -17.38 -8.74 -0.43 -14.65
5 -0.45 -15.13 -6.48 -0.45 -15.13
6 -0.45 -15.13 -6.48 -0.45 -15.13
J 2 ZONE 2/3 BOUNDARY
Transverse Direction Longitudinal Direction
Basic Load Cases
(-GCp;) GCpr (+GCp;) (-GCp;)
13.93 1T 0.47 1.74 3.91
-12.25 2T -0.69 -5.22 -3.06
-4.56 3T -0.43 -3.66 -1 .50
-2.64 4T -0.37 -3.28 -1 .12
18.97 Roof anale 0 = 0.00
-21 .37
-8.40
Surface Net Pressure with GCpr (+GCp;) (-GCp;)
-6.00 1T 0.40 1.32 3.48
-6.48 2T -0.69 -5.22 -3.06
-6.48 3T -0.37 -3.30 -1 .14
4T -0.29 -2.82 -0.66
1T
Transverse Direction Longitudinal Direction
Torsional Load Cases
THOMAS VU
1026 TURNSTONE ROAD,
CARLSBAD, CA 92011
LOAD CRITERIA
WEIGHT OF MODULE
MODULE LENGTH
MODULE WIDTH
MODULE AREA
UNIT WT OF MODULE
AVG RACKING WT
TOTAL AVG WT (MODULE+RACKING)
NO OF MODULE
CONNECTION POINT TRIS LENGTH
CONNECTION POINT TRIS WIDTH
CONN POINT TRIS. AREA
LOAD PER CONN PT LOAD
ROOF SLOPE
SUING FORCE
LOAD ON EXISTING ROOF
1) ROOFING
2) 5/8" PLYWOOD
3) ROOF RAFTER
4) INSULATION
5) MISC
TOTAL DL
ROOF AREA
TOTAL ROOF WT
WALL WT
TOTAL BUILDING DL
EACH MODULE AREA
TOT AL AREA OF MODULE
TOTAL MODULE WT
ADDITIONAL DL ADDED TO EXISTING BUILDIN<
LATERAL LOAD ANALYSIS COMMENTS
47.6 LB
5.67 FT
3.93 FT
22.28 FT"2
2.14 PSF
0.3 PSF
2.44 PSF
40
6 FT
2.75 FT MAX. SPACING
16.5 FT"2
40 LB
18.00 DEGREE
12.42 LB LOAD*SIN(ROOF SLOPE )
10.00 PSF
1.8 PSF
3.1 PSF
1.5 PSF
1.5 PSF
17.90 PSF
3850 SF
68.92 KIP
3.00 KIP
71 .92 KIP
22.28
891 .32 SF
2.45 KIP
3.41 %
SINCE TOTAL ADDED DL TO THE BUILDING IS LESS THAN 10%, PER CBC 2022 EXISTING LATERAL
RESISTING ELEMENTS WILL NOT BE AFFECTED
VERTICAL LOAD ANALYSIS COMMENTS
PER CBC SECTION 1607.13.5.1 EXCEPTION 1, THE ROOF LL NEED NOTTO BE APPLIED TO THE AREA
OCCUPIED BY THE SOLAR MODULES WHERE THE CLEAR SPACE BETWEEN PANELS AND ROOF
SURFACE IS 24" OR LESS. THEREFORE, DESIGN LOAD BY ADDING SOLAR MODULE OF 2.75 PSF IS
LESS THAN WITHOUT MODULES AND HENCE EXISTING FRAMING WILL THEREFORE BE OK.
THOMAS VU
1026 TURNSTONE ROAD,
CARLSBAD, CA 92011
CONNECTION DESIGN
.. 1v_E_L_o_c_1T_Y_P_R_E_s_s_u_R_E_, q_h ______ I_22_._38_IPSF (SEE WIND LOAD CALC)
A) LATERAL FORCE Fh FOR ROOFTOP STRUCTURES (FOR ONE CONN POINT)
(ONE SCREW PER CONN POINT)
HORIZONTAL WIND FORCE, Fh = qh *Ger* Af ASCE 7-16, Eq. 29.4.4
WIDTH OF BUILDING, B 55 FT
MEAN HEIGHT OF BLDG, H 24 FT
CONNECTION POINT TRIS LENGTH, I 6 FT MAX. SPACING
CONNECTION POINT PROJECTED HEIGHl 0.85 FT [2.75' SIN(ROOF SLOPE)]
VERTICAL PROJECTED AREA, Af 5.10 FT"2
Ger 1.9 IF(B*H*0.1>Af,1.9) ASCE 7-16, Eq. 29.4.4
WIND LATERAL FORCE, Fh 216.8 LB
SLIDING FORCE 12.42
DESIGN LATERAL FORCE 229.19
B) VERTICAL FORCE Fv FOR ROOFTOP STRUCTURES ( (FOR ONE CONN POINT)
VERTICAL WIND FORCE, Fv = qh * Ger* Ar ASCE 7-16, Eq. 29.4.4
WIDTH OF BUILDING, B 55 FT
LENGTH OF BLDG, L 70 FT
CONNECTION POINT TRIS LENGTH, I 6 FT
CONNECTION POINT TRIS WIDTH, w 2.62 FT [2. 75' COS(ROOF SLOPE)]
HORIZONTAL PROJECTED AREA, Ar 15.69 FT"2
Ger 1.4 IF(B*L*0.1>Ar,1.5) ASCE 7-16, Eq. 29.4.4
WIND VERTICAL FORCE, Fv 491 .7 LB
DESIGN WITHDRAWL FORCE 491.7
THOMAS VU
1026 TURNSTONE ROAD,
CARLSBAD, CA 92011
CONNECTION DESIGN
DESIGN LATERAL FORCE
USE LAG SCREW
CAPACITY PER ONE SCREW, 211
DESIGN CAPACITY, 211
DESIGN IS GOOD
DESIGN WITHDRAWL FORCE
USE LAG SCREW
WITHDRAWL CAPACITY
DESIGN WITHDRAWL CAPACITY
DESIGN IS GOOD
229.19
1/4" INCH
150 LB (NDS 2021 REFERENCE DESIGN VALUE, SEE ATTACHED)
399 LB
491.685
1/4' INCH
225 LB (NDS 2021 REFERENCE DESIGN VALUE, SEE ATTACHED)
748.125 LB
COMBINED WIND SHEAR/UPLIFT 0.43 0.330 0.76 < 1.0 DESIGN IS GOOD
(UPLIFT) (SHEAR)
USE (2) 1/4"X3-1/2" SS LAG SCREW WITH MIN 2.5" THREAD EMBEDMENT PER CONNECTION POINT
THOMAS VU
1026 TURNSTONE ROAD,
CARLSBAD, CA 92011
LOAD CRITERIA
WEIGHT OF BATTERY
MODULE LENGTH
MODULE WIDTH
LOAD PER CONN PT LOAD
WALL MOUNTAIN
SUING FORCE
BATTERY CALCULATION
287 LB
45.3 INCH
29.7 INCH
72 LB
90.00 DEGREE
64.14 LB LOAD*SIN(ROOF SLOPE )
THOMAS VU
1026 TURNSTONE ROAD,
CARLSBAD, CA 92011
CONNECTION DESIGN
DESIGN LATERAL FORCE
USE LAG SCREW
CAPACITY PER ONE SCREW, 211
DESIGN CAPACITY, 211
DESIGN IS GOOD
DESIGN WITHDRAWL FORCE
USE LAG SCREW
WITHDRAWL CAPACITY
DESIGN WITHDRAWL CAPACITY
DESIGN IS GOOD
BATTERY CALCULATION
64.14
1/4 INCH
150 LB (NDS 2018 REFERENCE DESIGN VALUE, SEE ATTACHED)
199.5 LB
64.14
1/4 INCH
225 LB (NDS 2018 REFERENCE DESIGN VALUE, SEE ATTACHED)
748.125 LB
COMBINED WIND SHEAR/UPLIFT 0.01 0.103 0.11 < 1.0 ESIGN IS GOOD
(UPLIFT) (SHEAR)
USE (4) 1/4" DIAX 31/2" LONG 2.5" THREAD EMBEDMENT LAG SCREW PER BATTERY
i ,;
Ii
!i
i
11.2 Withdrawal Design Values
11.2.1 Lag Screws
11.2.1.1 The withdrawal design values, in lbs.fin. of
penetration, for a single lag screw inserted in side grain,
with the lag screw axis perpendicular to the wood fibers,
shall be determined from Table 11.2A or Equation 11.2-1,
within the range of specific gravities and screw diameters
given in Table 11.2A. Tabulated nominal design values, W,
shall be multiplied by all applicable adjustment factors (see
Table 10.3.1) to obtain allowable design values, W'.
W=180QG312O314 (11.2-1)
11.2.1.2 When lag screws are loaded in withdrawal
from end grain, nominal withdrawal design values, W,
shall be multiplied by the end grain factor, Ceg = 0.75.
11 .2.1.3 When lag screws are loaded in withdrawal,
the allowable tensile strength of the lag screw at the net
(root) section shall not be exceeded (see 10.2.3).
Table 11.2A Lag Screw Withdrawal Design Values (W)1
Tabulated withdrawal design values (W) are in pounds per inch of thread penetration into side grain ofinain member.
Length of thread penetration in main member shall not include the length of the tapered tip (see Appendix L).
Specific
Gravity ---T n::; .:!crew Unthreaded Shank Diameter, D
G 1/4" 5/16" 3/8" 7/16" 1/2" 5/8" 3/4" 7/8" l" 1-1/8" 1-1/4"
0.73 397 469 538 604 668 789 905 1016 1123 1226 1327
'.~JX'.'Wfat'.q~f:Dr')i ,:;,3f~8.JD} i ;i::~tOXti f,'.i_'$.l:Q'!W; {:'5f//Xf :'. }::641).;';; ;:At/.$1>:i ;;\8:§~:f :·.,:/9:H>/: ;AQ,t7,{J \\~l't1tb{ '." f2f1.1a?:r+: ~
0.68 357 422 484 543 600 709 813 913 1009 1103 1193
::,.·, .>Jrn.z;,:,.,::.,. __ , ... :l4?·:.,•·:::.~J$,:~ .. >41~.":: • .. J~r · ..... ~·~7<:. "694 ~: :_19<1· ::. s9J _\ ··gs1<:-101s~<·Xt6..r:--'.-:·
0.58 281 332 381 428 473 559 641 719 795 869 940
: ·J '. , \QI~i ;i;':})./ ::\. 4QC):> :; ;:~rnot~B; ti{~'SZ :/; •• •r~Qf: .• )431' :/ • :?51,6\} /:'/592::/ \· ·<6Mf ? ,:/134(\ \/Y8Qi1?::.:. .Vi'$'~$/?l
o.s1 21? ?.74 114 v,~ 390 461 528 593 656 716 775
it;yi&l \~/Q;iQ}~1f);i(\/ f?<@~lt) i 10n6~ft :\:\[~J)S,tft i ?~1it1 • ')f;$:78/? 'J~+if u,=:Jl~\}:. '/;:57Q{?, ,:i\~l41t \:/i~~s::.;;} ??t1iPi&l
0.49 218 258 296 332 367 434 498 559 617 674 730
~:::,y;,::':·~]f:1.(1t·::cg i··;::.,~-0r~;' ;:;~'.JJt1~~i :;~:~if~,;:: ;:~~;~·rt?>: :):4$, ~, ~: : -~·M>..$::£ ::::_:~_v ;:· :': Jl_$:~.·: ,:· .'$JO:~~:. ;;:::,~~~,;er ~:,:~~,@~1:;;.~:
0.46 199 235 269 302 334 395 453 508 562 613 664
::/:;~;':~:,:. ;;:;Q;.tm\;;t:.:~;,:; ;~;,rn:~~.;, ~;~5ao,~.;\; ~:J;~.~~-~f£ :.;,~;z~~fi$ ::.,;::~~¥4/f ~'.J$.J~;~;: ;~i~~1;~: :.;·:yrrs·~.::. ;:;~I$!.'< ~:::::sit1c.~ 1?fiZKDt:.~
0.43 179 212 243 273 302 357 409 459 508 554 600
;':.'.? :· .. ···:;~;~?t~>:'.:(1: '!}~'t7~"~• ':%m:$~Y \1JltS'1::t ::;~~;·"·: V'.':Z.~t ::,,, :'-H"~; ·:·:;::,~~~~t:': :~,~:,~a:,·:: ·;:'2t?.!f;'.': ,,:,:·::S).$'':,c c~'~'.$1~)'.::;~
0.41 167 198 226 254 281 332 381 428 473 516 559
I: ':S::.-:·~:::~:~nf.Q:::;:T::,;;: ~W2t§'.L;: ;~~;,:tJt~~{~. :~&~~l~::y1 :'.:~:1~.r,! :,::';.::'grn::y:: ':7;,$i(L:~ .:.:::~~'~1~;:: ;;;j ~:rn:~r~ :·i:2I~i.;::i: '/'.'.'.!4.~'nlr:} :::.:;tl~,%¼:;'.
0.39 155 183 210 236 261 308 353 397 438 479 518
~r:,:;;,.:;~A.t:'!)iQ).~$,y;'.;;G~:;;: ikHl~9./'. ;(,1,{(.~2~B :~;s~rr~.~~: 17,~~?1~-1% ;:,f:.~$X'.\:., ;;::::,4g9J~;; :;;:: : AfttX),;: > ,:~ ~J.A~ w::f'ic.i<}i JW;'.(4,~1-:x.: T,?*~H:.;:,xs;,
0.37 143 169 194 218 241 285 326 367 405 443 479
w:2~\;t:·::Pl:~'.HfiK.:: f.lifif$:Zi:1 :K:5(~li;BL1~ iri&t:~it:~~'. -·~:~®'ttltl ::::.tZ~J~o:% ·~.?~~:~'.{:{ ,:::][i;~;:~·.~: ;:·{??~:)'.} _{:7l$!U ;:3;;lt$.~~L: -~;zt~'.~Jt.\V:Y
0.35 132 156 179 200 222 262 300 337 373 407 441
I. Tabulated withdrawal design values (W) for lag screw connections shall be multiplied by all applicable adjustment factors (see Table 10.3.1).
AMERICAN WOOD COUNCIL
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Table 11J LAG SCREWS: Design Values (Z) for Single Shear
(two member) Connections1,2,3 I
t.
In.
1/2
5/8
3/4
for Sawn Lumber or SCL with both members of identical specific gravity
~ ~ cX .; G=0.55 G=0.46
g' -~ G=0.67 Mixed Maple G=0.50 G=0.49 Douglas Fir(S)
~a ~ ___ R_e_d_O_a_k _______ S_ou_th_e_m_P_in_e _____ D_o_u~gl_as_F_l_~_La_~_h ____ D_o_u~la_s_F_lr-_L_ar_c_h~N~-t----H_e_m_-_Fi~r~N~--
D
in.
1/4
5/16
3/8
1/4
5/16
3/8
1/4
5/16
3/8
1/4
5/16
3/8
Zu
lbs.
150
170
180
160
190
190
180
110
130
130
120
140
130
140
z,,,_,_
lbs.
110
130
130
130
140
140
140
210 150 160
210 140 160
180 140 140
230 170 170
230 160 170
110
120
120
120
130
120
130
Zu
lbs.
130
150
160
140
160
170
150
140 180
130 180
140 160
160 210
160 210
~
lbs.
90
110
110
100
110
110
110
120
120
120
140
130
z,,,_,_
lbs.
100
120
110
110
120
120
120
130
130
120
150
150
90
100
100
100
110
100
110
Zu
lbs.
120
150
150
130
150
160
140
120 170
110 170
120 150
130 190
120 200
~
lbs.
90
100
100
90
110
100
100
90
110
110
100
110
110
110
110 120
110 120
120 120
130 140
120 140
80
100
90
90
100
100
100
Z.1
lbs.
120
140
150
130
150
160
140
100 160
100 170
110 150
120 190
110 190
~
lbs.
90
100
90
90
100
100
100
110
110
110
120
120
z,,,_,_
lbs.
90
110
110
100
110
110
110
120
120
110
140
140
80
90
90
90
100
90
90
Z.1
lbs.
110
140
140
120
150
150
130
100 160
100 160
110 150
120 180
110 180
Z..1
lbs.
80
100
90
90
100
100
90
100
100
110
120
110
z,,,_,_
lbs.
90
100
100
90
110
110
100
110
110
110
130
130
z_,_
lbs.
80
90
90
80
90
90
90
100
90
100
110
100
11/4 1/4 180 140 140 140 160 120
150
120
150
120 150 120 120 110 150 110
140
110
140
110 150 110
130
110
140
100
120 5/16 230 170 170 160 210 140 200 140 140 130 200 130 190
3/8 230 170 170 160 210 150 150 140 200 140 140 130 200 130 140 120 190 120 140 120
11/2 1/4 180 140 140 140 160 120 120 120 150 120 120 110 150 110 110 110 150 110 110 100
5/16 230 170 170 160 210 150 150 140 200 140 140 130 200 140 140 130 190 140 140 130
3/8 230 170 170 160 210 150 150 140 200 140 140 130 200 140 140 130 190 140 140 120
,';:-,~~:~;-:;-:;!g : __ --_\m .'.·. :.~~ ~,-s~:t,:::!:\:_::,~'.''.i; >~--•·~: :;~::r~r;;:ii";1:i ~:::31~·\t~t¥·:~':?:~;,:g~ ::
3/4 950 550 660 490 830 470 560 410 770 440 510 380 760 430 510 370 730 400 480 360
7/8 1240 720 830 630 1080 560 710 540 1020 490 660 490 1010 470 650 470 970 430 610 430
1 1550 800 1010 780 1360 600 870 600 1290 530 810 530 1280 500 790 500 1230 470 760 470
1 3/4 1/4 180 140 140 140 160 120 120 120 150 120 120 110 150 110 110 110 150 110 110 100
5/16 230 170 170 160 210 150 150 140 200 140 140 130 200 140 140 130 190 140 140 130
3/8 230 170 170 160 210 150 200 140 140 130 200 140 190 140 120
?[~i; ~;;:i1;;~;:~:H~{~:i1J~ ;~1~~iI1~~: .. :?i~l ~iiis:i:.~i ~~~~:;it:~':;
3/4 1030 580 720 520 890 480 600 430 830 450 550 390 820 440 540 380 780 420 510 360
7/8 1320 740 890 650 1150 630 750 550 1070 570 700 510 1060 550 680 490 1010 500 650 470
1630 910 1070 790 1420 700 910 670 1340 610 850 610 1320 590 830 590 1270 550 790 550
21/2 1/4 140 140 140 120 120 120 150 120 120 110 150 110 110 110 150 110 110 100
,-..----+-----------------------------...... ------150 150 140 200 140 140 130 200 140 140 130 190 140 140 130
lio,,,,!1"'9~,■.,,tiJl!l!lf,,_..,l ......... l.!'o-~'t,-....,1'-P.'!"1150 150 ·140 200 140 140 130 200 140 140 130 190 140 140 120
:_._ -·--_.-c ,._ . _ •. ,.,}Q{t/15jiI:il~tl ~: :li:JI _
3/4 1110 680 740 610 1010 550 650 490 960 500 610 450 950 490 600 430 920 460 580 410
7/8 1550 830 1000 740 1370 690 880 600 1280 630 830 550 1260 620 810 530 1190 580 770 500
1 1~ ~ 1~ ~ 1• • 1~ rn 1~ ~ ~ • 1~ ™ ~ ~ 1~ mm~
3 1/2 1/4
5/16
3/8
180
230
230
140 140 140 160 120
170 170 160 210 150
170 170 160 210 150
120 120 150
150 140 200
150 140 200
120
140
140
720
850
120 110 150 110 110
140 130 200 140 140
140 130 200 140 140
1730
1. Tabulated lateral design values (Z) shall be multiplied by all applicable adjustment factors (see Table 10.3.1).
110
130
130
150
190
190
110
140
140
660
790
110
140
140
2. Tabulated lateral design values (Z) are for "reduced diameter body" lag screws (see Appendix L) inserted in side grain with screw axis perpendicular to wood fibers;
minimum screw penetration, p, into the main member equal to 8D; screw bending yield strengths (F,0):
F,o = 70,000 psi for D = 1/4"; FYI>= 60,000 psi for D = 5/16"; F,i, = 45,000 psi for D 2: 3/8"
3. When 4OSp<8O, tabulated lateral design values (Z) shall be multiplied by p/8D.
AMERICAN WOOD COUNCIL
100
130
120