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Building A Patio
Costa Mesa1275 S. Bristol St.
(714) 556-1500
Buena Park6586 Beach Blvd.
(714) 522-2864
Capistrano Beach34162 Doheny Park Rd.
(949) 496-5765
Anaheim1220 E. Ball Rd.
(714) 722-5444
Lake Forest23132 Orange Ave.
(949) 830-3600
Los Alamitos10742 Los Alamitos Blvd.
(714) 527-2285 / (562) 346-2100
Pasadena3003 E Colorado Blvd.
(626) 993-2100
Corona150 W. Blaine St.
(951) 278-4000
Laguna Beach1765 Laguna Canyon Rd.
(949) 494-6538
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Designing Your Patio
*Span charts are samplings that have been pulled from various city websites. Please verify with your building department.
ProposedPATIO COVER
D r i v e w a y
EXISTING HOUSE
TYPICAL PLOT PLAN
(F)
(F)(E)
(B)
(C)
( D ) P r o
p er t y L i n
e _ _ _ _
F e e t
(D) Property Line____ Feet
( D ) P r o p e r t y
L i n e
____
F e e t
N
SCALE:____=____(A)
A. Show north arrow and scaleB. Show accurate footprint of all existing and proposed structuresC. Show drivewayD. Show all property lines (P.L.) , label each and properly dimensionE. Show dimensions of proposed structuresF. Show setbacks from property lines to proposed structure
Owner:_________________________________Address:________________________________City:____________________State:___________Zip Code:___________________
Notes:1. Have correct legal description and address of property2. Note adjoining streets or alleys and width of curb cuts3. Note location of each auto parking spaces4. North arrow should be correctly placed5. Draw completely dimensioned plan
(F)
Allow space forlattice & rafters
As a part of your patio planning, check with your local building department for building requirements in your jurisdiction. This brochure is only a guideline and is intended for open lattice style patios. Before you startconstruction youll need to get a building permit.
Allow for rafter and lattice thickness when determining how high on your house you can mount the patio. (Fig. 2)
The minimum height allowed in most areas is 7ft. and a heightof at least 8ft. is ideal.
Select the style of patio cover you are going to buildand make up your materials list. The rafter and headerspan charts will be very helpful in determining your
lumber needs. For the posts, 4x4 lumber is typicallyused, but your local building department or architecturalstyle may require larger size posts. After youve completedthe design of your patio cover, check with the localbuilding department to be sure the framing material,(including hardware), design and foundation meet theircode requirements. Using hot-dipped galvanizedfasteners/connectors or stainless steel fasteners/connectorsmay help extend the life of your patio by reducing corrosion.
(Fig.
Determine where your patio will go and what size it will be. At this stage, draw a plot plan to aid in getting a permit. (Fig. 1)
Give the dimensions and location of your patio and house onthe plot plan along with lot size.
Consider using rough or resawn douglas r, as it will offer a nicer appearance as your patio ages.
(Fig. 2)
(Refer to footnotes)
HEADER SPAN #2 DOUGLAS FIR RAFTER SPAN #2 DOUGLAS FIRFOR OPEN LATTICE PATIO FOR OPEN LATTICE PATIO
1 Each Header
4x6
4x8
4x10
4x12
4x14
6x8
6x10
2 Each (Double Rafer)
2x62x8
2x10
2x12
2x14
4x8
4x10
Maximum Span
8 Foot
11 Foot
14 Foot
17 Foot
20 Foot
14 Foot
18 Foot
Rafer SpacingRafer Size2x42x62x82x102x124x64x84x10
16 o.c.9-313-619-120-1024-214-919-520-0
32 o.c.24 o.c.7-611-013-1117-019-912-1117-020-0
6-69-612-114-917-111-615-318-11
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1
3
2
4
1 3
5
28
1212
1
64
Only if total loadis less than 750 pounds
POST TO FOOTING POST TO EARTHPOST TO EXISTING SLAB 1. Post - 4x4 min.2. Footing3. Post Base4. Patio Slab - 3 1/2min.5. Pre-cast pier6. Adjustable post base7. Treated lumber or CPS
8 6min
Fig. 4 Fig. 6Fig. 5
7
Determine the location of your patio cover postsbased on your plan.
If there is an existing concrete slab thats in goodcondition (meets your local code requirements)you have 2 options for fastening your posts to theslab. Keep in mind that many slabs are only 4 thickso auxiliary deeper concrete footings for the postbases may have to be added to meet local buildingcodes.
Option 1Mechanical anchor expansion bolt the bolt shouldbe minimum diameter of 5/8. Per the boltmanufacturers directions, drill the hole in the slabfor the anchor bolt, insert expansion bolt. Next attach
Simpson Strong-Tie ABUZ post base, fasten base to boltwith nut. (Fig. 4)
Option 2Epoxy Tie adhesive Per manufacturers instructionsdrill bolt hole in concrete slab, clean out hole ofexcess dust, dispense Epoxy-Tie adhesive and thenimmediately insert 5/8 Simpson Strong-Tie RFB boltor an equivalent piece of threaded rod. Allow epoxyto properly cure (approximately 24 hours) then fastenbase to bolt with nut. (Fig. 4)
The rst thing youll do is stain or paint allof the lumber for yourpatio. It is much easier
to nish the wood whileit is on the ground and just touch it up whencompleted. For an openlattice patio cover, youshould plan to use aboutone gallon of stain orpaint for every 50 squarefeet of patio. (Fig. 3)
If you are pouring a new concrete slab or new concretefooting you may insert Simpson Strong-Tie CBSQ HDGpost base into the wet concrete. Remember to take intoaccount the length of the post base stirrups (this varies byproduct) when planning for the concrete pour. If you arepouring a footing for the post bases it should measure12 square x 14 deep. (Fig. 5 & 6) (Footing size shouldbe veried by your building department.)
Once the concrete or epoxy has properly cured, install theposts into the steel post base. Use a level to assure the postsare perfectly vertical, then temporarily brace the posts tothe ground with scrap lumber. Fasten posts into post basewith proper fasteners or through bolts. (Fig. 7)
a)
b)
c)
Fig. 3
Fig. 7
d)
Securewith
properfasteners
If you are installing a freestanding patio, you will needto contact your local buildingdepartment in regards to localbuilding requirements andregulations.
Building Your Patio
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Building Your Patio (Continued)
g)
h)
k)Mark the locations of the studs on the ledger board.Drill 3/8 holes, approximately 1-1/2 from the edgeof the ledger board, alternating the holes from top tobottom. (Fig. 9) * If you have gotten approval to substitutea ledgerboard fastener. DO NOT drill 3/8 holes *
Using the ledger board asa guide, mark the locationof the holes on the wall.* Drill 1/4 pilot holes in wallto match holes in ledgerboard. Install the ledgerboard on the wall using3/8 x5 lags and washers, making sure to keep theledger board level. (Fig. 10)* if ledger is not protected by an overhang use ashing.
i) If the eaves of your house are too low, you may cutthrough the fascia and connect the rafter to a ledgerboard on the house. (Fig. 11) It is essential that the ledgerboard attachment to the structure is sealed so moisture orpests do not penetrate through the bolt holes. Thisinstallation can be sealed with metal ashing, caulk ora combination of both. Consult with a qualiedcontractor or roong specialist to determine the bestmethod for your installation. After the patio cover iscompleted, this ledger board attachment should beinspected on a periodic basis to determine its integrityand any necessary repairs should be made.
j) Determine the location of therafters from your patio plan.Mark the ledger board at thecenter point of where each joist hanger will be placed.Fasten Simpson Strong-TieLUS/LUCZ joist hangers to ledgerwith specied fasteners.Note-joist hanger placementwill depend on if you are using
a single or double rafter design.(Fig.12)
You are now ready to install the headers and rafters. Youshould be aware that there are two styles of header beamsand rafters. The one-piece header beam is used with singlerafters installed over the header (Fig. 13). The two-pieceheader beam is used with double rafters, (Fig. 14) which areinstalled under the header.
Using your patio design, locate the position of the ledgerboard and draw a level line on the wall where the bottomof the ledger board will go. (Fig. 8)
Locate the studs in the wall along this line (Easy way: locateone stud along the edge of a door or window and measure16 from it; drill a small hole approximately 2 above theline. If you dont hit a stud, drill another hole approximately1in either direction. Continue this method until you havelocated the studs along the length of the ledger board.
(Fill your holes with an appropriate exterior patch eventhough your ledger board will cover them)
e)
f )Fig. 8
SNAP A LEVEL LINE
If your patio design uses the
one-piece header beam itsimportant that the posts arecut to the correct length. Todo this, set a rafter in a joisthanger and hold it in a levelposition against a post andmark the post. Measure thedepth of the header from thisline and mark and cut the postsat this height. (Fig. 15)
DRILL 3/8 HOLESFig.9
Fig. 10
STUCCO
RAFTER
HEADER
Fig. 13 POST
DUMMYPOST
RAFTER
POST
MARK AT LEVEL
ADD HEADERTHICKNESS & CUTCUT HERE
LEDGER
ROOF FASCIAFig. 11
Fig. 14
Fig. 15
Fig. 12
HEADER X2
(into framing)
STUD
FASCIARAFTER
FLASHING
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l)
m)
o)
n)
p)
Now place the rafter into the joist hangers mountedon the ledger attached to the house, assuring theyare straight (Fig. 18) as they cross over the header.(Fig. 22) To help keep the rafter aligned SimpsonStrong-Tie offers several products. The H1Z and theH2.5Z are just a couple of Simpson productsavailable.
If your patio designuses the double headerand suspended rafters,set a rafter in a joist hanger(in a level position) andmark the post at the top of the rafter, or higher ifyou prefer. Mark all the postsat this level. (Fig. 19)
Install the headerson both sides of theposts with 16Dgalvanized nails. Afterthe header is inposition, secure it with1/2" machine bolts,nuts and washers. (Fig. 20) *
Install the rafters bynailing into joisthangers with joisthanger nails. Then nailto the posts with 16Dgalvanized nails.Secure the rafters inplace with two machine bolts, nutsand washers. (Fig. 20) *
For rafters that go inbetween the posts youwill need to installdummy posts to whichyou can attach the rafters.(Fig. 21)
67
1
43
2
5
1. Patio rafter2. Ledger-same height as
rafter3. Joist hanger4. 3/8 x 5 lag screw -
16 on center5. Exterior Stucco6. House Studs7. 2x lattice (to be added later)
PATIO RAFTERS TO BUILDING
Fig. 18
You are now ready toinstall the lattice. Nailthe lattice to the raftersusing 16D hot dipgalvanized nails. [Youmay want to substituteexterior grade woodscrews as they will beeasier to install]. Spacethe lattice approximately3 per foot. (Fig. 22)Note: if more light is desired,increase the lattice spacing;for less light decrease latticespacing or stand lattice onedge. (Check local building codes for spacing).
The last step in your patio is to touch up the woodand hardware with stain or paint and enjoy your patio!
The posts can be attached tothe header with post caps or T-straps. Temporarily attach thepost caps or T-straps to thepost using joist hanger nails. Then secure the post caps or T-straps (both sides) to the postand beam with 1/2" machinebolts and nuts. (Fig. 16)
Note: For a large patio with longbeams, it is easier to lift shorterlengths into place than it is tolift long ones. You will probablywant to join two shorter beamsrather than one long one overthe post. (Fig. 17)
1/2 Bolts (2 ea.)
HEADER
POST Fig. 20
DUMMYPOST
MARK HERE
Fig. 19
Fig. 21
Be a m 1 Be a m 2
Fig. 16
Fig. 17
Fig. 22
RAFTERS
*Fasteners shall meetminimum edge distancerequirements of the code.
Building Your Patio (Continued)
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Add A Custom Look To Any Patio
* See a Ganahl associate for these options and more
Knee BracesPost treatments
Header
P o s t
HEADER AND RAFTER DESIGN
11 12 14
15 16 17 18
19 20 21
1 2 3 5
6 7 8 9
10
4 x 4P O S T
4 x 4P O S T
2x2s ON CENTER
2x6s ON CENTER
4 x 4P O S T
2x8s ON CENTER
POST OPTION
E
A
C
You can nd morepatterns on our websitewww.ganahllumber.com
Ganahl Designer Options
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Glossary of Materials
LAG SCREW
WEDGE ANCHOR
RAFTERS
LEDGERLATTICE
POSTS
HEADER
SUGGESTED TOOLS*HAMMER*HANDSAW/ CIRCULAR SAW*TAPE MEASURE*CHALKLINE OR PENCIL
*STEPLADDER*CARPENTERS LEVEL*WRENCHES*SET XP EPOXY (OPTIONAL)*DRILL*1/2 MASONRY BIT (IF REQUIRED)*APPROPRIATE SIZE DRILL BITS
JOIST HANGERS
MACHINE BOLT
THE TRE
THE AR
Using Hot Dip Galvanized or Stainless Steelconnectors and fasteners will increase the lifeof your hardware.(Do not mix metals!)
H.D. GALV JOIST HANGER NAIL
16D H.D. GALV BOX NAILPC Post Cap
OT StrapT Strap
BC Post Cap
LUSJoist Hanger
LUCJoist Hanger
CBSQColumn Base
CBSColumn Base
ABU Post Base
CPS Stand Off
H2.5Z TieH1Z Tie
PHILLIPS SQ-DRIV EXTERIOR SCREW
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ganahllumber.com
For years, Ganahl Lumber has had a reputation
among professional builders as the place to go for
an Extensive variety of wood and a professional,
knowledgeable, creative sales force. And now, you
can take advantage of our expertise. use our Building a patio brochure with simple,
easy-to-follow instructions. we carry the highest
quality construction grade rough Douglas Fir, and
all the hardware youll need to build a beautiful
patio. You can also take advantage of many unique
designer options and customize your patio design to
your own individual taste. Choose from our wide
selection of paint and stains to finish a patio youll
enjoy for years to come.
we will hand select your materials and assemble
them for convenient delivery.
Ganahl Lumber is a company that still believes in
the personal touch that makes hitting the nail on the
head a whole lot easier for you! Using Simpson Strong-Tie connectors along with
advice from the experts at Ganahl Lumber will make
building a patio cover easier and make the results
stronger and safer.
More Than Just Great Lumber