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Square or rectangular cantilever parasol

Updated: 22.10.2026

You have either a long dining table or a square lounge set, and the amazon.co.uk titles call both a rectangular cantilever parasol, sometimes in the same line as the word square and a diameter. A square and a longer rectangle shade different furniture. A single diameter on a square title does not tell you which cloth is in the box. This page is the plan: equal sides for a square seat, a longer side for a run of diners, and a tape on the cloth when it arrives. The [rectangular cantilever parasol comparison](/hub/sun-shades/rectangular-cantilever-parasol) holds the six listings. It does not re-score them here.

You have either a long dining table or a square lounge set, and the amazon.co.uk titles call both a rectangular cantilever parasol, sometimes in the same line as the word square and a diameter.

Our top picks

Grand patio Grand patio balcony cantilever

Best overall

Grand patio Grand patio balcony cantilever
8.7/10about £59.98
View offer
tillvex tillvex square cantilever with LED

Alternative

tillvex tillvex square cantilever with LED
6.2/10about £107.79
View offer
tillvex tillvex square cantilever

Preis-Tipp

tillvex tillvex square cantilever
5.1/10about £86.79
View offer
On this page
  1. 1.Square and rectangle are not the same plan
  2. 2.Which shape covers which seats
  3. 3.When the title prints a diameter
  4. 4.What this does to the kept listings

Square and rectangle are not the same plan

A square cantilever has four equal sides. It is a rectangle in the strict sense, which is why a title can say both words and still be one canopy. In the way shade shops use the word, a rectangular cantilever has one side clearly longer. That longer side is the point if your table is a dining run. Round is outside this category. A true 3 m square covers 9 m², and a true 3 m round covers about 7.1 m², which is the comparison Ruma and Shade Specialists make when the width is real. A square coffee table wants the square. A table of about 2 m wants the longer rectangle along the top. Overhang sits on the rectangular cantilever parasol buying guide.

Which shape covers which seats

Ruma point a square at lounge sets and a longer rectangle at dining. Field & Hawken put a 3 m square or a 3.5 m by 2.6 m rectangle over four to six seats, with about 50 cm past the seats. The same square over a long table leaves the ends in the sun. Harbour Lifestyle's overhang is about 0.6–1 m, wider than Field & Hawken's 50 cm. Belveo describe rectangles from about 3 m by 2 m up to 3 m by 4 m. Sweeek's 3 m by 4 m page, which is not a product here, prints canvas of about 376 cm by 284 cm, so the nominal name and the cloth already differ. For a long dining run, choose the longer rectangle once both sides are printed. That fails if the only number on the page is a diameter.
Grand patio Grand patio balcony cantilever

Testsieger

Grand patio Grand patio balcony cantilever
8.7/10about £59.98
View offer

When the title prints a diameter

Diameter is the distance across a circle. On a square it might be the side, the diagonal, or a number copied from a round model. A 2.3 m square has a diagonal of about 3.25 m, so a title can print 330 cm and still deliver that smaller cloth. Reviews here report about 2.30 m by 2.30 m, or about 2.20 m by 2.25 m. The tillvex titles print diameter 330 cm and also say rectangular. Until you measure hem to hem, the 9 m² figure for a 3 m square does not apply. A 2.3 m square is about 5.3 m². Open the canopy only when the base is weighted, then measure both sides and the diagonal. The best rectangular cantilever parasol page names which URLs carry that 330 cm line.

What this does to the kept listings

The Grand patio balcony cantilever cites 182 cm by 131 cm. That is a balcony strip, not a 3 m by 4 m dining canopy and not a square lounge parasol. The shared word rectangular is not a shared size. The tillvex rows are the titles that say rectangular and 330 cm. This page does not rank them. If you wanted a square lounge canopy and you accept cloth nearer 2.2–2.3 m than 3.3 m, you are in their shape, and you still measure. If you wanted a long dining rectangle, a square arrival has missed the furniture. A 2.3 m square and a true 3 m square do not share a 25 kg balcony base.

Common questions

Is a square cantilever a rectangular one?
In geometry, yes. A square is a rectangle with equal sides, so a title can use both words for one cloth. In a shop, rectangular usually means the longer plan. If you need one side longer for a dining table, read the two side lengths, not the adjective alone.
Does a 3 m square shade more than a 3 m round?
If both measurements are real, the square covers 9 m² and the round covers about 7.1 m². That is geometry, and Ruma state the same comparison. Shade Specialists say the square shades more than the round at the same stated width. None of this applies when the only printed figure is an unverified diameter.
What does diameter mean on a square listing?
On a circle it is the width across. On a square the seller might mean the side, the diagonal, or a figure copied from a round model. A 2.3 m square has a diagonal of about 3.25 m, so a 330 cm title can describe that corner-to-corner line. Measure the side and the diagonal yourself.
How do I check the size when it arrives?
With the foot weighted, open the canopy and measure each side from hem to hem, then the diagonal if the title used a diameter. A pair of equal sides near 2.2–2.3 m, with a diagonal near 3.3 m, explains a 330 cm claim that is not a 3.3 m side. If the sides differ, set the longer side along the table.
Should I trust 3 x 3 m without a cloth measurement?
Treat 3 x 3 m as the seller's name for the range until you have hem-to-hem figures. Sweeek's 3 m by 4 m page prints canvas nearer 376 cm by 284 cm. The tillvex reviews here report squares nearer 2.2–2.3 m against a 330 cm title.

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Rectangular cantilever parasol

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Sources

Public UK sources and the amazon.co.uk listings compared on this page. Listings captured 21 October 2026. Updated 22.10.2026.

  1. GOV.UK, General Product Safety Regulations 2005 (retrieved 22.10.2026)
  2. legislation.gov.uk, SI 2005/1803 (retrieved 22.10.2026)
  3. GOV.UK, Ultraviolet radiation FAQ (retrieved 22.10.2026)
  4. BSI, BS EN 581-2 scope (retrieved 22.10.2026)
  5. Planning Portal, outbuildings (retrieved 22.10.2026)
  6. Nova Outdoor Living, cantilever care (retrieved 22.10.2026)
  7. Plia Parasols, base guide (retrieved 22.10.2026)
  8. JB Furniture, securing a cantilever (retrieved 22.10.2026)