DECKS
INCLUDED: LIST OF REQUIREMENTS
SAMPLE DRAWINGS
TOWN OF AJAX
BUILDING APPROVALS SECTION
DECKS
A GUIDE TO OBTAINING A BUILDING PERMIT
The information contained within this guide is provided to assist home owners and contractors
with the process of applying for and obtaining a building permit to construct a deck.
When is a permit required for a deck?
Building permits are required for decks that are greater than 600 mm (23 5/8 in.) above adjacent
ground and/or structurally attached to the house or any other building with a foundation.
Be advised that even though a building permit may not be required the required zoning
provisions must be maintained.
Information required to be submitted for a building permit
Submissions for a building permit shall include the following information:
•
•
•
•
•
Completed building permit application
$80.00 building permit fee.
Two copies of the legal survey or site plan indicating all buildings and proposed
construction on the property, their proximity by dimension to the property lines, and lot
coverage.
Two copies of detailed construction drawings indicating all of the structural components
of the proposed construction: piers, posts, beams, joists, attachment, guards.
If the proposed structure will be adjacent to a septic system then approval for its location
shall be obtained from the Durham Regional Health Department.
Guide includes:
• Application for building permit
• Sample construction drawings
• Guard design details
Guard and Handrail Design
The Ontario Building Code (OBC) requirements for the construction of deck guards and
handrails are restrictive. Guards are required to be constructed in accordance with
Supplementary Standard SB-7 to the Ontario Building Code.
Guard system #1 is for construction utilizing Douglas Fir-Larch, Spruce-Pine-Fir, or Hemlock-Fir
species of lumber detailing cantilevered picket screwed to rim joist. Guard system #2 is for
construction utilizing Douglas Fir-Larch, Spruce-Pine-Fir, or Hemlock-Fir species of lumber
detailing infill picket.
Other guard design options are available in OBC Supplementary Standards SB-7 or the
construction detail of the guard can by designed/sealed by a Professional Engineer.
TOWN OF AJAX
BUILDING APPROVALS SECTION
Zoning Requirements
Provided below is a comprehensive zoning chart for determining the required setbacks that shall
be maintained in locating the deck on the property. Should you have any questions regarding
this chart or require additional zoning information please contact Planning personnel,
905-619-2529, ext. 3631.
Regulation
Maximum
coverage/area
Min. exterior side yard
setback
Requirements
Height above finished ground level
More than an finished
ground level to 0.6 m
50% of yard in which
it is located
0.6 m to 1.2 m
50% of yard in which
it is located
More than 1.2 m
30 m² (not exceeding
50% of yard in which
it is located)
Must meet setback
requirements for
individual zones
May encroach 2.5 m
May encroach 2.5 m
out from main building out from main building
wall, but no closer to
wall, but no closer to
exterior side lot line
exterior side lot line
than 3.5 m*
than 1.5 m*
Min. interior side yard Must meet setback
Must meet setback
Must meet setback
setback
requirements for
requirements for
requirements for
individual zones
individual zones
individual zones
Min. rear yard setback 1.8 m
1.8 m
4m
Min. front yard
May encroach 2.5 m
May encroach 2.5 m
Must meet setback
setback
out from main building out from main building requirements for
wall, but no closer to
wall, but no closer to
individual zones
front lot line 3.5m*
front lot line 3.5m*
* Except for in the following zones: R4.A, R4.B, R5A, R7.A, R7B, R7.E, R7.G, R8.A, R8.B,
R8.D, R8.E and R8.F where Section 6.123 applies; R3.1, R4.C, R5.B, R7.C, R7.D AND R8.G
where Section 6.124 applies; and in R5.A, R7.A and R8.A where Section 6.125 applies.
Should you have any questions regarding the information contained within this guide or require
any additional information with regards to building permits, please contact the:
Building Approvals Section at 905-619-2529, ext. 3652
Planning Section (zoning inquires) at 905-619-2529, ext. 3631
Planning & Development Services
TOWN OF AJAX
Tel. 905-683-4550
Fax. 905-686-0360
65 Harwood Ave South
Ajax ON L1S 2H9
www.ajax.ca
Permit to Construct New Decks or Accessory Buildings
Residential Buildings
Fees:
□
□
Building Permit Fee pursuant to the current Town of Ajax Building By-law
Estimated construction value (to be checked against the TACBOC valuation)
Application Forms:
□
□
□
□
□
Completed Application for a Permit to Construct or Demolish
Schedule 1: Designer Information
Acknowledgement by Applicant of Incomplete Application
Letter of Authorization
Completed Applicable Law Checklist (where necessary)
Drawing Submission:
□
□
□
□
Two copies of the Site Plan/Legal survey showing the proposed location of the structure.
Two copies of fully dimensioned Construction Drawings, including:
■
Cover page or title block,
■
North arrow, scale, legend of symbols,
■
Project identity (name, address, unit #, etc.),
■
Size and type of materials,
■
Means of support (i.e. the size and depth of concrete piers),
■
Anchorage to the existing building,
■
Proposed building, showing all windows and doors, the size and type of all material
(walls and floor) and indicating all structural components.
■
Elevations for all sides of the building, showing the location of the windows and doors
(including their sizes), indicate elevation dimensions for the height from ground to the top
of the windows and doors, from the ground to the underside of the ceiling and to the top
of the ridge.
Fully dimensioned foundation plan
Two copies of the Roof Truss drawings/Roof Plan (where required)
Additional Approvals and Information:
□
□
Durham Region Health Department approval if the subject building is connected to or adjacent
to a Septic System.
Clearance from Toronto & Region Conservation Authority (if applicable)
This is a general list of requirements and is not intended to be comprehensive.
FORM: PLD-080
REVISED: 14/06/12
Application for a Permit to Construct or Demolish
This form is authorized under subsection 8(1.1) of the Building Code Act, 1992
For use by Principal Authority
Application number:
Permit number (if different):
Date received:
Roll number:
Application submitted to: Town
of Ajax
A. Project information
Building number, street name
Unit number
Municipality
Postal code
Plan number/other description
2
Project value est. $
Area of work (m )
B. Purpose of application
⃞ New construction
Lot/con.
⃞ Addition to existing
building
⃞ Alteration/repair
Proposed use of building
⃞ Demolition
⃞ Conditional permit
Current use of building
Description of proposed work
C. Applicant
Applicant is:
Last name
⃞ Owner or
First name
⃞ Authorized agent of owner
Corporation or partnership
Street address
Unit number
Municipality
Postal code
Telephone number
(
)
Fax
(
Province
Lot/con.
E-mail
Cell number
(
)
)
D. Owner (if different from applicant)
Last name
First name
Corporation or partnership
Street address
Unit number
Municipality
Postal code
Telephone number
(
)
Fax
(
)
Application for a Permit to Construct or Demolish – Effective January 1, 2014
Province
E-mail
Cell number
(
)
Lot/con.
E. Builder (optional)
Last name
First name
Corporation or partnership (if applicable)
Street address
Unit number
Municipality
Postal code
Telephone number
(
)
Fax
(
Province
Lot/con.
E-mail
Cell number
(
)
)
F. Tarion Warranty Corporation (Ontario New Home Warranty Program)
i. Is proposed construction for a new home as defined in the Ontario New Home Warranties
Plan Act? If no, go to section G.
ii. Is registration required under the Ontario New Home Warranties Plan Act?
⃞ Yes
⃞ Yes
⃞ No
⃞ No
⃞ Yes
⃞ No
⃞ Yes
⃞ Yes
⃞ Yes
⃞ No
⃞ No
⃞ No
⃞ Yes
⃞ No
iii. If yes to (ii)provide registration number(s):
G. Required Schedules
i) Attach Schedule 1 for each individual who reviews and takes responsibility for design activities.
ii) Attach Schedule 2 where application is to construct on-site, install or repair a sewage system.
H. Completeness and compliance with applicable law
i) This application meets all the requirements of clauses 1.3.1.3 (5)(a) to (d) of Division C of the
Building Code (the application is made in the correct form and by the owner or authorized agent, all
applicable fields have been completed on the application and required schedules, and all required
schedules are submitted).
Payment has been made of all fees that are required, under the applicable by-law, resolution or
regulation made under clause 7(1)(c) of the Building Code Act, 1992, to be paid when the
application is made.
ii) This application is accompanied by the plans and specifications prescribed by the applicable by-law,
resolution or regulation made under clause 7(1)(b) of the Building Code Act,1992.
iii) This application is accompanied by the information and documents prescribed by the applicable
by- law, resolution or regulation made under clause 7(1)(b) of the Building Code Act, 1992 which
enable the chief building official to determine whether the proposed building, construction or
demolition will contravene any applicable law.
iv) The proposed building, construction or demolition will not contravene any applicable law.
I. Declaration of applicant
I
declare that:
(print name)
1.
2.
The information contained in this application, attached schedules, attached plans and specifications, and other attached
documentation is true to the best of my knowledge.
If the owner is a corporation or partnership, I have the authority to bind the corporation or partnership.
Date
Signature of applicant
Personal information contained in this form and schedules is collected under the authority of subsection 8(1.1) of the Building Code Act, 1992, and
will be used in the administration and enforcement of the Building Code Act, 1992. Questions about the collection of personal information may be
addressed to: a) the Chief Building Official of the municipality or upper-tier municipality to which this application is being made, or, b) the inspector
having the powers and duties of a chief building official in relation to sewage systems or plumbing for an upper-tier municipality, board of health or
conservation authority to whom this application is made, or, c) Director, Building and Development Branch, Ministry of Municipal Affairs and Housing
777 Bay St., 2nd Floor. Toronto, M5G 2E5 (416)585-6666.
Application for a Permit to Construct or Demolish – Effective January 1, 2014
TACBOC
WOOD DECK TABLES - IMPERIAL
JOIST SPAN
PIER SIZE
BEAM SIZE
PIER SPACING
PIER SPACING
7’-10”
9’-10”
3’-11”
5’-10”
7’-10”
9’-10”
JOIST SIZE
3’-11”
5’-10”
5’-10”
8”∅
8”∅
10”∅
10”∅
2-2x8
2-2x8
2-2x8
2-2x10
2x8
7’-10”
8”∅
10”∅
10”∅
12”∅
2-2x8
2-2x8
2-2x10
2-2x12
2x8
9’-10”
8”∅
10”∅
12”∅
14”∅
2-2x8
2-2x8
2-2x10
2-2x12
2x8
12’-0”
10”∅
12”∅
14”∅
14”∅
2-2x8
2-2x8
2-2x10
2-2x12
2x10
* Values shown are based on the soil bearing capacity of 120kPa.
POSTS SUPPORTING DECK
POST SIZE
MAXIMUM HEIGHT
MAXIMUM
SUPPORTED DECK AREA
3’-3”
116.89 ft²
4x4
4’-11”
63.82 ft²
6’-6”
33.90 ft²
6’-6”
147.14 ft²
8’-2”
100.32 ft²
9’-10”
68.35 ft²
11’-5”
47.46 ft²
6x6
* Values shown are based on the roof snow load of 1.0kPa.
POSTS SUPPORTING DECK AND ROOF
MAXIMUM
SUPPORTED ROOF AREA
POST SIZE
MAXIMUM HEIGHT
3’-3”
71.58 ft²
4x4
4’-11”
39.07 ft²
6’-6”
20.77 ft²
6’-6”
90.20 ft²
8’-2”
61.57 ft²
9’-10”
41.87 ft²
11’-5”
29.06 ft²
6x6
* Values shown are based on the roof snow load of 1.0kPa.
GENERAL NOTES
1. SITE PLAN OR SURVEY IS REQUIRED SHOWING ALL LOT LINES AND DIMENSIONS, SIZE AND
LOCATION OF ALL EXISTNIG BUILDINGS, AND LOCATION AND SIZE OF DECK.
2. LUMBER No. 2 SPF OR BETTER, WOOD POSTS MIN. 4x4 (SOLID). USE CORROSION RESISTANT SPIRAL
NAILS OR SCREWS.
3. DECK IS NOT PERMITTED TO BE SUPPORTED ON BRICK VENEER.
4. CONCRETE PIERS SHALL BEAR ON UNDISTURBED SOIL. THE BEARING CAPACITY OF THE SOIL SHALL
BE DETERMINED PRIOR TO CONSTRUCTION.
5. PROVIDE A HANDRAIL 2’-11” HIGH ON STAIRS IF MORE THAN THREE RISERS.
6. FOR SUPPORTED AREAS WHICH EXCEED THOSE LISTED IN THERE TABLES THE POSTS SHALL BE
BRACED AS SHOWN D01c.
7. MAXIMUM HEIGHT REFERS TO THE HEIGHT OF THE POST FROM THE TOP OF THE PIER TO THE DECK
SURFACE.
TACBOC
WOOD DECK TABLES - METRIC
PIER SIZE
BEAM SIZE
PIER SPACING
PIER SPACING
1200mm
1800mm
2400mm
3000mm
1200mm
1800mm
2400mm
3000mm
JOIST
SIZE
1800mm
200mm∅
200mm∅
250mm∅
250mm∅
2/38x184
2/38x184
2/38x184
2/38x235
38x184
2400mm
200mm∅
250mm∅
250mm∅
300mm∅
2/38x184
2/38x184
2/38x235
2/38x286
38x184
3000mm
200mm∅
250mm∅
300mm∅
350mm∅
2/38x184
2/38x184
2/38x235
2/38x286
38x184
3660mm
250mm∅
300mm∅
350mm∅
350mm∅
2/38x184
2/38x184
2/38x235
2/38x286
38x235
JOIST
SPAN
* Values shown are based on the soil bearing capacity of 120kPa.
POSTS SUPPORTING DECK
POST SIZE
89x89
140x140
MAXIMUM HEIGHT
MAXIMUM
SUPPORTED DECK AREA
1.0 m
10.86 m²
1.5 m
5.93 m²
2.0 m
3.15 m²
2.0 m
13.67 m²
2.5 m
9.32 m²
3.0 m
6.35 m²
3.5 m
4.41 m²
* Values shown are based on the roof snow load of 1.0kPa.
POSTS SUPPORTING DECK AND ROOF
POST SIZE
89x89
140x140
MAXIMUM HEIGHT
MAXIMUM
SUPPORTED ROOF AREA
1.0 m
6.65 m²
1.5 m
3.63 m²
2.0 m
1.93 m²
2.0 m
8.38 m²
2.5 m
5.72 m²
3.0 m
3.89 m²
3.5 m
2.70 m²
* Values shown are based on the roof snow load of 1.0kPa.
GENERAL NOTES
8. SITE PLAN OR SURVEY IS REQUIRED SHOWING ALL LOT LINES AND DIMENSIONS, SIZE AND
LOCATION OF ALL EXISTNIG BUILDINGS, AND LOCATION AND SIZE OF DECK.
9. LUMBER No. 2 SPF OR BETTER, WOOD POSTS MIN. 89x89 (SOLID). USE CORROSION RESISTANT
SPIRAL NAILS OR SCREWS.
10. DECK IS NOT PERMITTED TO BE SUPPORTED ON BRICK VENEER.
11. CONCRETE PIERS SHALL BEAR ON UNDISTURBED SOIL. THE BEARING CAPACITY OF THE SOIL SHALL
BE DETERMINED PRIOR TO CONSTRUCTION.
12. PROVIDE A HANDRAIL 900 mm HIGH ON STAIRS IF MORE THAN THREE RISERS.
13. FOR SUPPORTED AREAS WHICH EXCEED THOSE LISTED IN THERE TABLES THE POSTS SHALL BE
BRACED AS SHOWN D01c.
14. MAXIMUM HEIGHT REFERS TO THE HEIGHT OF THE POST FROM THE TOP OF THE PIER TO THE DECK
SURFACE.