A cantilever patio umbrella is a type of umbrella that is built in such a way that it does not need a traditional center pole to support it, making it more applicable to a patio umbrella. The difference between a conventional patio umbrella and a cantilever umbrella is that the latter relies on a side pole and an extended arm to hold the umbrella canopy above the area desired.
But how does a cantilever patio umbrella work? It's a no-brainer: a sturdy vertical structure supports an arm that extends horizontally or at an angle, and is used to hoist an umbrella canopy over a patio, dining table, lounges, or outdoor living space. The canopy is supported by a weighted base or a secure mounting system, which provides stability and balance.
Knowing how these interact can assist homeowners, restaurants, hotels and commercial property owners in deciding what outdoor shade to select.
What Is a Cantilever Patio Umbrella?
A cantilever patio umbrella is a patio shade structure that has a canopy that hangs off of the main support pole, sometimes referred to as an offset patio umbrella.
There are four major parts to a typical design:
- Base: Provides stability and supports the entire umbrella structure.
- Vertical pole: Holds the umbrella upright.
- Cantilever arm: Extends from the pole and supports the canopy.
- Canopy: Creates the shaded area.
The difference is that one pole is located in the outside city and the other is in the interior. The pole of a traditional patio umbrella typically goes through the center of a table. Cantilever umbrella has a pole placed next to the shaded space.
The benefit of this design is that cantilever umbrellas offer maximum room under the umbrella when you need it.
How Does a Cantilever Patio Umbrella Work?
A cantilever patio umbrella works on the principle of a counterbalance and structural support.
The extended arm and canopy is supported by the vertical pole. The arm extends away from the pole, enabling the canopy to extend above the seating or dining area.
Since the umbrella is subject to leverage from the canopy, there is a need for the base to exert a sufficient weight or anchoring force to keep the umbrella upright.
If the umbrella is set up correctly, the forces are spread throughout the arm, pole and base. The added weight of a long canopy is balanced by a firm base.
Other models feature a swiveling canopy around the pole. Others feature arms that can be adjusted to move the canopy around and/or its angle.
The Role of the Cantilever Arm
One of the most crucial components of the umbrella is the cantilever arm.
It is extended horizontally or diagonally from the vertical structure and keeps the canopy separated from the support structure. It can be attached in various ways, including a fixed arm, an adjustable arm or a lifting mechanism.
Many contemporary cantilever patio umbrellas feature an opening and closing pulley, crank or handle system. The user activates the mechanism; the umbrella ribs spread out to form the familiar umbrella or rectangular shade structure.
Larger, commercial umbrellas can have stronger mechanical mechanisms which are created to be operated more often.
The arm must be rigid enough to be able to support the canopy without bending and moving in the wind.
How the Base Keeps the Umbrella Stable
The base is vitally important as a cantilever umbrella has its canopy placed farther away from the middle of its support.
Now imagine you were holding a long object by the end, horizontally. The longer the weight is held out from the hand, the more leverage. A cantilever umbrella operates in a similar manner.
This leverage is offset by the base.
Common base solutions include:Common base solutions include:
- Heavy freestanding bases
- Concrete-filled bases
- Water-fillable bases
- Ground anchors
- In-ground mounting systems
- Deck or concrete mounting plates
If applying the product to a home, a heavy portable base might be preferable. Permanent anchoring can offer extra stability for restaurants, hotels, resorts and other commercial uses.
Base size will vary by canopy size and construction, installation surface and expected weather conditions.
How the Opening Mechanism Works
Most cantilever patio umbrellas are with relatively easy operations.
A typical system employed is a crank handle. The action of turning the crank causes a cable or lifting mechanism to move inside, causing the canopy to be raised along the structure. After the ribs are completely open, the ribs spread outwards and stretch the fabric.
The user rotates the mechanism the other way and the canopy folds up to close the umbrella.
There are canopies available in higher priced models that feature assisted lifting systems or other features that lessen the amount of effort needed to operate larger canopies.
The canopy area is not the only factor to be considered when selecting an umbrella. Also, it is important to take into account how often the umbrella will be opened and closed.
Can a Cantilever Umbrella Rotate?
One of the main benefits of many cantilever patio umbrellas is their ability to rotate.
The entire base does not move when the canopy is moved, it is done by a rotating mechanism. This allows the shaded portion to be varied throughout the course of the day.
The homeowner might place the canopy over a dining table in the afternoon and turn it to a lounge area later in the day.
Additional models tilt the canopy, too. This can enhance shade coverage during these times of the day.
This depends on the type of umbrella, and how flexible it is.
Why Choose a Cantilever Patio Umbrella?
This is the largest benefit; flexible shade coverage.
The side-mounted support pole affords a greater amount of space below canopy. Cantilever umbrellas are able to be used for the following:
- Outdoor dining tables
- Patio sofas
- Poolside seating
- Outdoor kitchens
- Restaurant terraces
- Hotel and resort areas
- Commercial outdoor spaces
- Garden lounge areas
Another advantage of a cantilever design is a cleaner look, as there won't be a pole in the center of a table.
Several umbrellas can be set up in outdoor spaces to establish different shady spots.
What Size Cantilever Umbrella Do You Need?
The size of the shade chosen can depend on the area you wish to shade.
Two chairs or a small patio might be better suited to a smaller canopy. A bigger canopy can provide shade for dining tables, sectional sofa or bigger outdoor seating areas.
When buying, take some time to measure the space carefully and ask yourself:
- The size of the furniture.
- The desired shade coverage.
- Available clearance around the umbrella.
- The location of the base.
- Potential wind exposure.
- Whether the umbrella needs to rotate or tilt.
Keep in mind there is a need for extra space around the canopy for safe working and maneuvering.
Is a Cantilever Patio Umbrella Safe in Wind?
With proper design, installation, and use, cantilever umbrella can be stable, but is still subject to strong wind.
The long canopy produces a considerable amount of wind resistance and leverage. The forces on the umbrella may significantly increase with increasing wind speed.
To this end, it is important that users check the manufacturer's guidelines and fold the umbrella when it no longer seems appropriate.
Stability can be improved by permanent anchoring, a well-sized base, a sturdy frame and a good quality canopy. But, when it comes to serious weather, no patio umbrella is to be considered a permanent structure unless it has been engineered and rated for severe weather.
How to Maintain a Cantilever Patio Umbrella
With proper care, there is the potential for the service life of a cantilever patio umbrella to be long.
Maintain cleanliness of canopy using fabric manufacturer's cleaning guidelines. Prune leaves, dirt and debris regularly. Periodically inspect frame, bolts, joints, crank and rotating mechanism.
If the umbrella is not being used for a long time, closing and covering the umbrella will help to prevent damage to the fabric and mechanical components.
Check base and anchoring system before each season to ensure security.
Final Thoughts
So, how does a cantilever patio umbrella work? Utilizes a vertical pole on the side, a longer support arm, a canopy and a counterbalanced base to provide shade without a pole in the middle of the shade area.
Its offset design offers more flexibility in outdoor dining, lounging, pools, restaurants, hotels and residential patios. There are also many models that provide rotation, tilting and simple opening systems that open easily with the push of a crank, allowing you to change the shade throughout the day when the sun's trajectory shifts.
Keep in mind a cantilever patio umbrella more than its canopy size. Take into account frame structure, anchorage or base, working mechanism, rotation range, fabric material, installation surface and weather conditions in the area.
If combined with the right combination of size, construction and stability, a cantilever patio umbrella can offer a comfortable yet flexible shade and make better use of an outdoor living area.
