Triangle Sun Shade Sail Installation Ideas: DIY Instructions 

How To DIY A Triangle Sun Shade Sail Installation Ideas

Emma DowneyByEmma Downey
Updated on 8/13/2022

Become familiar with the process of a triangle sun shade sail installation ideas. Adding shade to your deck or patio with the help of a Shade Sail that you install yourself is an easy and cost-effective project.
Upgrade to a shade sail if a regular patio umbrella doesn't provide enough sun protection (also called a sun shade). These reasonably priced sails are a do-it-yourself project suitable for novices and can be finished in a few hours.


  • The midday sun basks our balcony for several sweltering hours. Because of this, it is both:
  • Inhospitable during the warm summer months and challenging for any plant growth.

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Awnings, Umbrellas, And Pergolas Versus Shade Sails

Although we have a sizable patio umbrella, it only provides shade for a tiny section of our deck. We were going to add another umbrella.

On the other hand, considering the price of an umbrella at $75 and the cost of a stable foundation at the same price, it is more expensive to install an umbrella than to put up a shade sail (and provides less shade than a sail).

Not to mention that the bases of the umbrellas take up valuable space on the floor.

Installing an awning is still another alternative to consider. However, because of what would place the top over the kitchen windows, there would be a significant reduction in the amount of natural light that enters the home.

We could cover the deck away from the house using a shade sail, which allowed the windows inside the house to continue to get plenty of natural light.

We thought about getting a pergola, but it was too expensive and heavy, so we decided against it. A pergola has a higher price tag and would place additional strain on the supports and framework of our deck.

How To Choose A Sun Shade Sail

To choose a shade sail, you will need to select a form in the appropriate size and color that is complementary to the exterior of your home.

How to Install Shade Sails | Mitre 10 Easy As DIY

Let's discuss how to decide on a shade sail's shape, size, and color, shall we?

SHAPE | Selecting The Best Shape

The majority of shade sails are sold in one of these three shapes:

  • Triangle (equilateral and right angle)
  • Square
  • Rectangle

Determine which shape will work best for you depending on the space you need to cover and the area you do not want to cover. Please explain what I mean by it.

Our deck, for instance, is square (18.5'x18.5'). As a result, it could appear that the most sensible option would be a square shade sail.

Nevertheless, we decided to keep the part of the deck adjacent to the house open to the elements. Why? The importance of sunlight coming in via the patio door and the kitchen window cannot be overstated. Because of this, we wanted the sunscreen to be hung some distance from the home.


Consequently, we settled on the idea of installing a shade in the form of a triangle with a right angle covering fifty percent of the deck.

Note that sunshades are not precisely in the shape of a triangle, square, or rectangle. Multiple concave curves on either side of the body add to the overall condition and keep the shade sail taut.

How To Determine The Proper Size Of A Shade Sail

You must first identify where the shade sail will be mounted before calculating the appropriate size for the sail. Even though the mounts have not yet been set up, you will still need to be aware of their future placement.

Take careful measurements of the distance between each mounting point and the one that comes after it. There are a few different approaches to take here:

  • Use measuring tape stretched from one spot to the next for an accurate estimation.
  • To obtain an accurate measurement, one should string twine from one location to the next. Make a mark at each of the twine's endpoints. Bring the string down to the ground, and measure how long it is.

shade sails

In the beginning, we used a measuring tape, and then we switched to twine to have a better picture and confirm our designs before purchasing the shade sail.

After taking the necessary measurements, shop for a shade sail whose overall dimensions are slightly less. For instance, our dimensions were 17 feet by 17 feet by 22.5 feet, and we got a shade of 15 feet by 15 feet by 21 feet.

In addition, you will need to allow for a space of at least 8–12 inches in width between the mounting point and the sail. This distance may vary depending on the shade sail, and thus it is essential to verify it before making a purchase.

As a result, the optimal dimensions will adhere to this formula:

Allowance plus the distance between the mounting posts equals the size of the sail.

For illustration purposes, we will choose a post distance of 17 feet, 17 feet, and 22.5 feet.

Seventeen feet between the posts minus a 12-inch allowance on each side equals 15 feet.

22.5 feet between the posts minus 9 inches of tolerance on either side equals 21 feet

COLOR | Shade Sail Ideas

The shade sail can be any colour the customer wants. The color we chose for our house was a light gray-brown that is reminiscent of our shake siding.

Because we were not interested in adding contrast to our deck, we decided that a subdued tone would be appropriate.

On the other hand, if we wanted it to be the focus of attention, we could go with something like a shade of red clay.

If the shade sail is going to be used to cover a pool or patio that is situated poolside, you may select a sail in a colour like teal or aqua if you want it to have that look.

Are you putting a roof over a children's playground? Think about using a hue that's vibrant and fun, like orange.

Do you want your shade to appear as though it belongs in the natural setting? Give a forest green a shot.

You shouldn't feel as though you have to limit yourself to basic colours —prints are also available! This blue and white striped pattern would look great in a home by the shore.

DIY Shade Sail Installation

The first step in installing a shade sail is to mount the posts, and the second step is to hang the sail itself.Let's talk about the things you have to do in order to complete each of the processes.

DIY Shade Sail Installation

Instructions For Mounting A Shade Sail

Shade sails can be attached to a variety of materials, including the following:

a home's exterior can have either wood or steel posts.
If you decide to install it outside of your house, make sure you mount it in a secure location if that is what you choose to do (such as concrete, brick, etc.). Your house should not sustain any damage due to the mounting point's inability to endure the force of high winds.

Because we didn't want to take the chance of causing damage to our siding, we decided against mounting the shade sail to the side of our house.

Attach To The Wooden Posts

When mounting shade sails, using wood poles is the most cost-effective method, the wood posts can be:

Incorporated into a deck or fence or fixed firmly into the ground with cement.

Attach To The Wooden Posts

During our deck renovation, we decided on treated wood posts measuring four by 4 inches and installed them. We could have fastened wooden poles to the perimeter of the deck's frame if we weren't in the process of rebuilding it at the time.

Purchase a steel hardware kit such as this if you are utilizing wooden posts (be sure to select a triangle, a square, or a rectangle, depending on the shape of your shade sail).

Take note that only two turnbuckles are included with each of these sets. Carabiners are provided for the other corner as well (s). We decided to have a different turnbuckle to use on the third corner. Although this isn't required, it offered us more accurate control over how much what pulled the sail in.

Attach To The Steel Posts

You should be aware that wooden posts have some drawbacks, such as the need for maintenance, which may influence your decision to choose steel posts to place a shade sail.

Posts made of metal can be, just like those made of wood:

  • Fastened to the posts of a deck or fence or anchored into the ground with cement.
  • Ensure that the posts you choose are long-lasting and strong by selecting galvanized steel as your material of choice.

To secure the sails to the posts, you may want round connector clamps similar to these, depending on the diameter of the posts.

In addition, the turnbuckles and carabiners that come with the wood hardware package are necessities for this endeavor.

Take note that only two turnbuckles are included with each of these sets. Carabiners are provided for the other corner as well (s). We decided to have a different turnbuckle to use on the third corner. Although this isn't required, it offered us more accurate control over how much what pulled the sail in.

Instructions For Setting Up A Shade Sail

You will discover the instructions for putting up a shade sail on the card that you may print off. After reviewing the cart, proceed to the FAQ and tips & tricks sections for further information.

How to Install a Shade Sail with DIY Cable Railing and a few tips to make it go smoothly



  • Shade Sail
  • Hardware Kit
  • Clamp with D-Ring Connectors and a Round Jaw (for steel posts)
  • Or a Chain, if You Will


  • Posts made of either wood or steel
  • Cement (for mounting in ground)
  • Lag Bolts (for attaching posts to another structure)



  • Drill
  • Drill Bits
  • Bungee Cords
  • Pencil
  • Measuring Tape
  • Screwdriver


Sail (Wood Posts)

1. First, figure out which way the shade sail should direct the water when it rains.

2. In that direction, the hardware for the shade sail needs to be put two to three inches lower than it would be in the other mounting locations.

3. We are marking what we can do on each mounting plate with a pencil.

4. After making your markings, you should drill pilot holes into the wood posts.

5. With the help of a screwdriver, fasten the mounting hardware to the posts.


6. What should provisionally hang the sail with the help of bungee cords? This straightforward method will help you "hang" and center the sail in a short amount of time, relieving some of the weight that is being supported by the sail in securing the turnbuckles, carabiners, and rope, or chain. When you have finished permanently installing each corner, remove the bungee cords.

7. Now use carabiners to tie the sail to the highest corners of the triangle (if it is a triangle) or the square or rectangle (if it is a square or rectangle).

8. If more length is required, what can add rope or chain to the arrangement.

9. After that, use the turnbuckles to secure the sail in the other two places.

how to shade a sail

10. What should tighten turnbuckles until each side reaches a taut state. If you overtighten the shade's hardware, the cloth may wear out more quickly.

Sail (Steel Posts)

1. First, figure out which way the shade sail should direct the water when it rains.

2. In that direction, the hardware for the shade sail needs to be put two to three inches lower than it would be in the other mounting locations.

3. As soon as the locations have been chosen, the circular clamps need to be fastened to the steel posts in those areas.

tension shaid sail

After this point, the installation procedure is the same as steps 6-10 described earlier.


1. Add wooden or metallic posts if the mounting structure (such as a deck, outside, or fence) does not already exist.

2. During the installation process, you should fill the hole with cement if you mount wooden or metal posts in the ground.

3. Attaching wooden or metal posts to another structure (such as a deck or a fence) requires using robust hardware, such as lag bolts, to ensure the posts' stability.


It is essential to note that each hardware set only includes two turnbuckles, and Carabiners are provided for the other corner as well (s). We decided to have a different turnbuckle to use on the third corner.

Although this isn't required, it offered us more accurate control over how much what pulled the sail in.

Tips And Tricks

1. Use twine or string to take the necessary measurements for the sail when constructing a sun cover. In addition to providing accurate measurement, it will also show you what the shade will look like before it is installed.

Tips And Tricks

2. What can use bungee cords to provide a temporary hanging solution for the shade sail, which can then be adjusted to be centered? During the installation process, this will not only help you get a better view of the height of the sail but also relieve some of the weight off of it.

3. Even though hardware kits only contain two turnbuckles, we discovered that using three turnbuckles (for s triangle sun shade sail installation ideas) allowed us to tighten the shade sail with greater precision.

Frequently Asked Questions

Q: How Do I care For A Shade Sail?

A: Even while residential shade sails are intended for use outside, in conditions that may include strong gusts of wind, they are not necessarily built to be able to support the weight. Because we reside in a region with snowfall and ice accumulation, we take down the shade during winter.

Q: Can I Mount A Shade Sail To The Exterior Of A Home?

A: It depends. It is possible to put shade sails on the exterior of a house. However, this will depend on the material and structure of the house. The mounting point ought to be strong enough to withstand the pressures caused by wind without causing any damage to your home. Mounting shade sails on materials such as gutters, siding, or stucco is NOT a good idea. The mounting of shade sails can be accomplished with a variety of materials, including brick, concrete, and cement blocks.

Q: How Tall Should The Posts Be To Mount A Shade Sail?

A: The posts that support a shade sail ought to be at least 8 feet in height. The true height of the sail is four to six inches lower than the height of the post because the hardware is mounted somewhat lower than the top of the post and the sail is angled slightly downward in the centre. As a consequence of this, if the posts are between 8.5 and 9 feet in height, the sail will actually be higher than 8 feet in the middle. In the middle of the sail, the height will be closer to 7.5 feet if the posts are 8 feet tall.