Insert sonotubes in the holes mix and pour your concrete into them and insert a 5 8 j bolt in the center of each while the concrete is wet extending about 1 up.
How to build a pergola on existing concrete slab. Visit ron hazelton s website for mo. If you are going to build your pergola directly on the ground you will need to dig holes for each of the posts fill the hole with concrete and set the post. A bracket a concrete anchor also known as a tapcon bolt and then some lag bolts to attach the post to the bracket. I plan to put a polycarb clear roof on it to protect the furniture underneath from rain as well as adding curtains that can be pulled back on either side for privacy from neighbors.
Step 4 place post in anchor. Step 3 secure metal anchor. The posts will be positioned in the corners of. For an existing concrete slab you can use the same post anchors but you will need to use a hammer drill and special concrete anchors to attach the post anchor to the slab.
First you will need to decide where the anchors are going to go. Learn how to build a pergola over a patio and enjoy patio shade and airiness with a semi open roof of interlocking beams. It is also the easiest by far. I will be building a 14 x12 pergola on a raised concrete patio outside a doorwall.
Assuming that your deck is in good condition and was built with standard 2x10 joist construction situate your posts so that they align with the joists or locate a sister joist under the deck. Step 1 locate anchor position. For the vast majority of you the surface you will be using is a concrete patio slab. How to anchor an outdoor pergola to a concrete slab.
Can i mount a pergola on existing concrete slab. Our design called for the four 6x6 posts to be set around 12 apart on the width 9 on the depth to provide a stylin overhang. Attach a level to a straight 2 4 and mark the bottom of each post level with your height mark against the house. Step 2 drill anchor bolt holes.
We wanted the roof of the diy pergola to align with the fascia of the house for a custom fluid look. I have an existing concrete patio slab that is almost 20 years old at this point and i am considering adding a pergola to our patio. The slab is in good shape and has no signs of any problems.