i am looking to extend my 4x4 corner posts on a deck to build a pergola over top of the deck. i also plan on sleeving those 4x4's with a composite sleeve for the full length from the 4x4. so the extensions need to be flush, so plates and other things protuding cannot be sticking out of the sides.
adding a pergola to an existing deck is, imo, more challenging. ive never done it. fwiw here is what i think i would do - the first question is if the post from the ground up to the deck are in the same position as the posts you want to run from the deck up for the pergola. if the are, great. if not, i would build some solid framing
learn how to complement a patio or deck with a stylish wooden pergola. diy network shows you how to build a wooden pergola from start to finish. similar topics: structures pergolas. now playing. digging pergola post holes 01:21. digging pergola post holes 01:21. diy network shows you how to dig post holes to ensure a sturdy pergola. now
compared to a typical stain job on a deck it is about 3x the work. we anchored the posts and assembled everything on site. this pergola is open in the center to make it feel more like a courtyard. the larger wrap around steps make it feel less closterphobic and allow more of the view in to the living room as well.
as the bolt is turned the anchors will press against the concrete for a very strong hold. step 4: place post in anchor. once the anchor is secured to the concrete you need to stand the post into position. once the post is into position mark the holes where the lag bolts will be secured.
mounted on concrete footer or existing slab. this will connect the pergola posts to the footings or slab, and also hold the bottom of the post up 1 from the concrete surface to keep the bottom of the posts out of water that may accumulate on the patio.
the pergola will be 8' square with 4x4 cedar posts, doubled 2x8 beams, and use battens for mounting a sunshade. the plan is based on one of the many blueprints available on the internet. you first should check with local authorities to determine if there are any building codes you need to follow.
porch: built over existing refurbished 12x14 deck. deck though smaller at approx 280 sq ft , and build a pergola over the existing deck for shade instead of a porch. build a pergola - seven trust's this pergola makes a great weekend project, and a good helper can make the job go much more 6 in. from the top of the decking on post 1 and mark it.
my idea for the pergola is this: place 4x4x10 posts at the same locations as the deck posts. these would pass thru the deck floor and rest on the beams below. for the 4 posts that are at the outer edges of the deck a, b, d, e , lag-bolt the new posts to the adjacent joists. the 5th post c
those post run through the deck and attach to concrete pylons below. very sturdy. adding a pergola to an existing deck is, imo, more challenging. ive never done it. fwiw here is what i think i would do - the first question is if the post from the ground up to the deck are in the same position as the posts you want to run from the deck up for the pergola. if the are, great.
how to install pergola posts. there will be some give in the leanability of your post the higher up you go, which is good news for building a pergola. check for level on two adjacent sides of your post. with someone holding the post in as close to a level position as possible, its time to begin securing the post to the bracket.