Once that’s done, make certain that the masonry in the area is rock solid and that the the section to be drilled into is at least 4 inches or 100mm thick to prevent the floor from cracking and for the torque to be distributed properly once the clotheslines are under load.
Installing Your Clothesline Poles
Let’s start with the bolt-in version of a washing line pole kit, below is a comprehensive video on drilling as well as proper fastening of sleeves and screws into concrete/masonry.
Drill into the concrete using a masonry bit and the impact drill. Don’t forget to use the bit diameter and length appropriate for the screw or sleeve you will use to anchor the brackets.
You can use a depth stop to nail down the correct deepness of the drilled hole then use a vacuum cleaner to clean off the silica dust around the hole, doing so also helps to minimise dust going back inside the hole which can keep the bolts/fastener from being properly seated, you can also use a can of compressed air to blow out any dust inside the hole.
Once cleaned, position the bracket so the holes line up, drop in a fastener for each hole (or a sleeve anchor) then tighten the nut and washer, being careful not to over-tighten which can cause excessive stress on the sleeves and cause a loose tread keeping your post from being fastened to the floor. For a really solid anchoring prowess, use wedge anchors to secure the brackets by following the video guide above.
It will be a lot easier if the brackets are already attached to the poles minimising measurement delays, this part of the process is a two-person job, it can be done alone but it’s certainly a bit more tricky.
As for anchoring wood posts using cement, here’s a really quick but easy to understand how-to guide, while the video indicates ‘fence post’ the process for clothesline post is pretty much the same.
Please take note that the video demonstrates use of quick-setting cement mix which does not require mixing at all, mixing regular concrete is still a good practice to avoid air pockets and weak spots but all in all this video should make the cut to easily achieve our end goal:
As for a quick recap, get rid of the mulch first then dig the hole using a post hole digger for convenience, you can get by with a shovel but the hole won’t be as precise, nevertheless, you can always dig a bit deeper to set the concrete a little lower for easy concealing with grass.
If you’re premixing the concrete in a bucket, add in some gravel so you can position the post conveniently once the mix is poured in, use the carpenter’s level flat on top of the pole and the sides to obtain proper alignment, make sure to saturate the hole with a bit of water too so that the concrete does not dry out prematurely and keep it from curing properly.
Let the concrete harden for a day before installing the cords, best to leave it to cure for three days or so to guarantee that it has cured adequately before any force is applied to the posts.
Drying line options
If you haven’t figured out the kind of clothesline you need (which we doubt, we’re certain that you already have one nearby otherwise you won’t be reading this article!) we have a few suggestions that you might want to take a look at.