now a pergola is an open air structure, a large arbor of sorts designed to provide shade, charm and style by allowing vines to climb its post and spread across the rafters. now this is the perfect area for a pergola if i ever saw one.
add 4x4 blocks between support beams to secure the rafters that dont line up with the posts images 2 and 3 . drill three-inch screws in at an angle to secure all rafters into the beams image 4 . optionally, add hooks and hangers to dress up your new pergola with plants and lanterns, creating a welcoming outdoor space image 5 .
as the concrete posts continue setting, start preparing the support beams and rafters for your pergola. normally, the beams are attached to the posts which ideally carry the whole weight of the pergola. the pergola requires around two to four beams on all sides, and the rafters are attached to the top of the beams. cut the beams to the right length.
to make them more secure or if you dont want to use joist hangers, you can attach the same kind of rafters to the wall so they can serve as support of the beams or cut notches on said rafters so you dont need to screw the beams but just insert them in the rafters. another way to attach a pergola to your home is by using a ledger board that you can attach to your homes wall.
set the purlins on the chalk line, pre-drill the holes and secure with galvanized wood screws. as the pergola takes shape, you'll notice that the roof looks familiar. it has all the elements of a normal pitched house roof -- joists, rafters and purlins. the only difference is that the pergola roof is flat and has no shingles.
if you are using treated lumber pergola etc you need to use fasteners that are treated coated or stainless. the fasteners should be applied in pairs at each truss, top and bottom. i recommend screws, particularly in treated wood, that are twice the thickness of the purlin.
pergola assembly. how it works; step 1. staking out and positioning of the posts; step 2. securing the posts to the ground; step 3. attaching the ledger board to the house; step 4. attaching the main beam s to the posts; step 5. attaching the cross rafters; step 6. attaching strengthening struts; step 7. options for customised pergola modules; step 8. finish; safety statement
pergola beam and rafter sizes and spans. tags: lawn and garden. i'm planning a cedar pergola over my deck. posts will be 6'x6' and will be notched to accept a 'sandwich' beam of two 2'x?'s. across the
how to build a pergola. 1 begin to assemble the pergola on the ground. slot a rafter between the notches on two uprights. leave an equal overhang on either side. 2 when these uprights are in place, secure through the notches marked on the uprights into the rafter. use two 60mm screws on each side.
a fascia board alone is usually not of sufficient strength for this attachment, and a proper attachment must be to the header and roof rafters. the header should be at least 2-by-8-inch lumber. if not, measure and cut a piece of 2-by-8-inch lumber to the same length as the side of the pergola that will be attached.
cut the smallest beams into thin rafters in your desired size, and attach those stringers to the top beams. pergola designs and ideas you can choose to decorate and build your pergola in any way you want, but we do recommend that you stick to classic designs, shapes, and colours so that you are always on trend.
screw or bolt the cross beams to the posts. screw the cross beams into the posts with bolts or 4 inches 10 cm screws. place 2 screws on each end of the cross beam to secure them tightly. your pergola should now have 2 cross beams running parallel to each other on each side of the structure.
we wanted the roof of the diy pergola to align with the fascia of the house for a custom, fluid look. to keep the roof of the pergola even and level across the whole topside, youll need to cut each post exactly. attach a level to a strht 2×4 and mark the bottom of each post level with your height mark against the house.
secure the two boards together using wood glue and screws. once the beams are complete, set them atop the corner post, allowing them to rest in the slot created by the vertical 2 by 10s. secure the sandwich beams in place by inserting screws from each side of the slots. the rafters will be constructed of 2 by 6 inch boards 15 feet in length.
once done, fix the rafters to the main beam using the right-angle brackets and the 25mm recessed screws provided. although the angle brackets have 3 fixing holes per side you only need to use 2 of them to fix to the main beam and 1 to fix to the rafter to achieve a firm fixing.
figuring out proper pergola rafter spacing can be tricky. we've got instructions and examples to show you how to space rafters when the numbers don't make it easy, when to use an even number of rafters and when to use an odd number, when to start your spacing with a rafter in the very center of the roof, and more.
spacing of the rafters will vary according to your visual preference and the size of the pergola. spacing the rafters 16 to 20 inches apart is common. the most important rule in spacing is to keep the distance consistent between all the rafters. install the front and rear rafters first, fastening them to the face of the support posts above the girder.
1 begin to assemble the pergola on the ground. slot a rafter between the notches on two uprights. leave an equal overhang on either side. 2 when these uprights are in place, secure through the notches marked on the uprights into the rafter. use two 60mm screws on each side. 3 turn section over and secure uprights in the same way from the other side. repeat the process with another rafter and the two remaining uprights.
run the strings of lights across the rafters. staple the lights to the upper rafters of the pergola every 5 inches 13 cm so they do not hang loose. wind them back at forth across the rafters until you go from one end to the other. string the lights twice on each rafter to light the area better.
anchoring posts in the ground. 1. dig holes in the locations for the pergola's posts, making each hole at least 12 inches in diameter and the depth of one-third the height of one post. if, for example, each post is 12 feet tall, then make each hole 4 feet deep. in that example, the pergola will be about 8 feet tall.
you have to do it thoroughly so that the rafters sit flush on it. attach the horizontal beam by using a nail gun. after that, to make it flush with the roof of the existing house, cut the two outer rafters. now you can begin assembling the outer rafters and attaching the rafter beam to the edge of the roof of the house.
the eaves, fascia and gutter are removed, and rafters cut back as in option six, and now we install shs columns on top of the wall plate and reinforce them to the rafters. building a pergola
to do this, butt the ends of the rafters together over a supporting beam. then nail two pieces of 1-by or 2-by lumber of the same width as the rafters as show at left and about 18 inches long centered over both sides of the splice. or, join the members using manufactured metal splice plates.