A cantilever umbrella, also called an offset or side-post umbrella, holds its canopy from an arm that reaches out from a pole standing to one side. With no pole through the middle, the shade can cover a sectional, a lounge set, a hot tub or a dining table without anything in the way, and the canopy can usually tilt and rotate to follow the sun. It suits large patios, decks and pool areas where a center-pole design would block seating or foot traffic.
This is one of our largest outdoor collections, with more than 600 models, and essentially all of them are listed in stock. List prices begin around $80 and reach about $2,100 per umbrella; the middle of the range runs from about $275 to $800, and the typical model costs around $600. Many titles mention an included base, aluminum frames, solar lights or double-top canopies.
Common Canopy Sizes and What They Cover
The most frequent canopy sizes are 10x10, 10x13 and 9x12 feet, followed by 12x12, 9x9 and 11x11. As a rough guide:
- 9x9 and 10 foot round or square: a four-seat dining set or two loungers side by side.
- 10x10 square: a six-seat dining table or a compact conversation set. A square canopy casts a more even block of shade than a round one of the same width.
- 9x12 and 10x13 rectangles: long dining tables, L-shaped sectionals and rows of pool loungers. A rectangular cantilever umbrella covers a long shape with one post instead of two.
- 11x11 and 12x12: large seating groups and open decks; these call for the heaviest bases.
- Double frames: a few listings carry two canopies on one post for very wide areas.
Size the shade at least a couple of feet beyond the furniture on each side, and remember that the shadow moves with the sun. A tilting canopy keeps late-afternoon sun off people even when it comes in low from the side.
Rotation, Tilt and Crank Systems
Features vary far more across offset designs than across center-pole umbrellas, and they decide how useful the shade is through the day.
- 360-degree rotation: the post turns on its base so you can swing the canopy over a different seating area without moving the base.
- Canopy tilt: a lever or crank angles the canopy toward the sun; some designs tilt along more than one axis.
- Height adjustment: sliding the arm up or down the post lets the canopy sit close over a lounger or higher over a dining table.
- Crank or pulley opening: a handle on the post opens a large canopy with little effort.
- Vents and double tops: a vented top lets gusts pass through and reduces strain on the arm.
Frames, Canopy Fabric and Built-In Lights
Aluminum is the most common frame material in the titles. It resists rust, keeps weight manageable and is usually powder-coated. Steel frames are stronger for the money but need a good finish to fight corrosion near pools and the coast, and woodgrain finishes give a warmer look next to teak or wicker. For the canopy, polyester and solution-dyed acrylic are the usual fabrics; solution-dyed acrylic is known for holding its color in strong sun. Look for UV protection details and a water-repellent coating in the listing. Models with LED strips on the ribs and a solar panel on top are also part of the range, and our solar LED patio umbrellas collection gathers lit designs of every frame type.
Why the Base Matters More Than the Canopy
A side-post umbrella works like a lever: the canopy catches wind several feet from the post, so the base must be much heavier than for a center-pole model. Large canopies commonly call for a base of around 200 pounds or more, often built from several fillable or concrete weight plates on a steel cross frame. Always follow the base weight the maker lists for your canopy size. Many listings here include a base; if yours does not, browse our umbrella bases and match the frame type and recommended weight. In-ground and deck-mount kits are an option for permanent installations.
Offset vs Center-Pole Market Designs
- Offset or side-post: unobstructed shade, rotation and tilt, and bigger canopies, at the cost of a heavier base and a higher price.
- Center-pole: slides through a table hole, is simpler and lighter and needs a smaller base, but the pole sits in the middle of the shade. See our market umbrellas for table and freestanding options.
If the shade will always sit over one dining table with an umbrella hole, a center-pole model is the simpler choice. For lounge areas, pool decks and sectionals, the side post wins. Both sit within the wider patio umbrellas range.
Wind, Weather and Off-Season Storage
Close the canopy whenever you leave it unattended and in gusty conditions, since most damage happens when an open umbrella catches a sudden gust. Fit a protective cover when it stays closed for long stretches, and brush off leaves and pollen, which hold moisture against the fabric. Clean the canopy with mild soap and water, rinse it, and let it dry open before closing it. In regions with snow or hard freezes, store the canopy indoors and drain any water-filled base, because ice can crack plastic shells. A silicone spray on the crank and rotation joints once a season keeps them moving freely.
Cantilever Umbrellas FAQ
What size offset umbrella do I need for a sectional?
Measure the sectional and add about two feet on each side. Most L-shaped sectionals pair well with a 10x13 or 9x12 rectangular canopy, while a 10x10 square covers a compact conversation set.
How heavy should the base be?
Heavier than most people expect. Large side-post umbrellas commonly need around 200 pounds or more; follow the recommended weight in the listing for your canopy size and check whether a base is included.
Can I use one over a pool or hot tub?
Yes, that is one of the main reasons to choose this style, because the arm reaches over the water while the base stays on the deck. Keep the base on a level, solid surface and close the canopy when nobody is using the area.
Are lighted models worth it?
Built-in LED strips charged by a solar panel add soft evening light without extension cords. They suit dining and lounge areas used after dark, though the output is ambient rather than bright task light.
Is a square or round canopy better?
Square and rectangular canopies give more shade per foot of width and match the shape of most patio furniture. Round canopies suit circular dining sets and soften the look of a deck.
What does an offset umbrella cost?
In this collection, most models fall between about $275 and $800 per umbrella, with a typical price around $600. Simple models start near $80, and large double-canopy or premium frames reach about $2,100.