Commercial Parasols for Terraces: Sizes, Bases and Wind Safety
Commercial parasols for UK terraces need a canopy sized to the table and chairs beneath, a base or ground fixing of at least the weight the manufacturer specifies, and a firm rule to close them in rising wind. One UK guide suggests 40 kg for a 2.5–3 m centre-pole parasol and at least 90 kg for a 2.7–3 m cantilever.
Key takeaways
- Base weight rises with canopy size and arm offset: a cantilever needs far more ballast than a centre-pole parasol of the same size.
- Treat the manufacturer’s stated base weight or ground fixing as the minimum, and go heavier on exposed sites.
- Wind ratings are measured on correctly anchored parasols; close them in gusts, in bad weather and whenever the terrace is unattended.
- On a pavement licence in England, furniture must be removable, should not blow over easily and must leave a clear route for pedestrians.
- Several smaller centre-pole parasols are usually safer on an exposed terrace than one oversized canopy.
A parasol is the largest and lightest object on most terraces, and the one most likely to move in a gust. Getting it right means matching three things: the canopy size to the seating, the base or fixing to the canopy, and the operating routine to the weather. This guide sets out the published base-weight guidance, how wind ratings work and how they relate to the Beaufort scale, what the pavement licence guidance in England says about furniture on the highway, and the mistakes that lead to bent frames and torn canopies. For tables, chairs and parasols built for terraces, see our outdoor and terrace furniture.
Choosing commercial parasols for each table
Start from the seating plan, not the parasol catalogue. Mark each table and its chairs pulled out, then draw the shade you need around them. Square canopies tile neatly over rows of tables and leave fewer gaps for rain to drip through; round canopies suit single tables and informal layouts. Remember that shade moves with the sun, so a canopy that only just covers the table at midday will leave seated guests in the sun by mid-afternoon.
Resist the urge to cover the whole terrace with one giant canopy. Glatz advises that it is better to have several parasols than one that is too large, and recommends a centre-pole parasol that is not too large, with a permanent ground fixing, for highly exposed locations. Smaller parasols also let you close part of the terrace while keeping the rest open.
How heavy should a parasol base be?
Base weight depends on canopy size and design. Ruma‘s UK guide recommends minimum bases of 15–25 kg for centre-pole parasols up to 2.5 m, 40 kg for 2.5–3 m and 60 kg for 3–3.5 m, rising to 90 kg for a 2.7–3 m cantilever and 120 kg or more for cantilevers of 3.5 m and over. It describes these as minimums calibrated against typical UK wind speeds, which it puts at 15–30 mph on average, with exposed coastal and upland sites regularly gusting above 30 mph.
Guidance written for professional use is often heavier. Belveo gives a minimum of 80 kg for straight (centre-pole) parasols of 2 × 2 m to 3 × 3 m in standard professional use, 100 kg for 3 m cantilevers and 120 kg for a 3 × 4 m cantilever, with 20–30% more on seafront or unprotected rooftop sites. The gap between the two guides is a reminder that the only figure that counts is the one the parasol manufacturer specifies for that model; use the published guides to sense-check it.
| Parasol type and size | Minimum base, Ruma (UK guide) | Minimum ballast, Belveo (professional use) | Notes |
|---|---|---|---|
| Centre pole, up to 2.5 m | 15–25 kg | Not listed | Lighter only if threaded through a table |
| Centre pole, 2.5–3 m | 40 kg | 80 kg (2 × 2, 3 × 2 and 3 × 3 m) | Belveo spreads ballast over four slabs |
| Centre pole, 3–3.5 m | 60 kg | Not listed | Ruma’s text suggests 40–60 kg for 3 m |
| Cantilever, 2.7–3 m | 90 kg | 100 kg (Ø3 m and 3 × 3 m) | Offset arm acts as a lever on the base |
| Cantilever, 3.5 m and over | 120 kg+ (consider 150 kg if exposed) | 120 kg (3 × 4 m) | Tilting the canopy adds load |
| Exposed site (rooftop, coast) | Move up one weight tier | Add 20–30% | Or use a permanent ground fixing |
Why cantilevers need more weight
A cantilever (side-arm or offset-arm) parasol holds its canopy off to one side, so wind load acts on a long lever arm and tries to tip the base. Ruma notes that tilting the canopy increases the lateral force on the base, and Belveo puts the extra ballast a cantilever needs at 20–50% over a straight parasol. Glatz goes further: it says side-mast parasols are not suitable for locations exposed to extremely windy conditions, and that a wall console is not permitted in such locations.
Bases and fixings: weighted, wheeled or fixed to the ground
- Fillable bases. Ruma notes that sand is denser than water and does not evaporate, so it gives more weight for the same volume; check fill levels at the start of each season.
- Slab bases. Belveo recommends spreading ballast across four slabs rather than one or two, checking them monthly, and not counting the parasol’s own weight towards the ballast.
- Wheeled bases. Useful where parasols move between positions or come in at night; make sure the brakes or locks hold on your surface.
- Through-table use. A centre pole through a table can use a lighter base, but Ruma stresses a base is still essential.
- Ground sleeves and bolted plates. Glatz recommends permanent ground fixing for exposed sites. Fixings may need landlord or council consent, and on a pavement licence, furniture bolted to the ground falls outside what the licence covers.
Whatever you choose, check that the pole diameter matches the base socket before ordering, as Ruma advises.
Wind safety: when to close a commercial parasol
Wind ratings describe what a correctly anchored parasol survived, not a speed at which it is safe to leave it open. Glatz rates its windproof range at up to 80 km/h depending on the model, tested with each parasol in an anchored support tube, and treats the km/h figure as the binding one. Belveo makes the same point from the other side: a windproof system and correct ballast are complementary, never interchangeable. At the other end of the market, the operating manual from FARE says its parasols are designed for light winds up to force 3 and should be closed at higher wind forces, in gusts or in rain.
The Met Office Beaufort scale helps staff translate a forecast into action. Force 3 (gentle breeze) is 7–10 knots, force 5 (fresh breeze) is 17–21 knots, force 6 (strong breeze) is 22–27 knots and force 8 (gale) is 34–40 knots. An 80 km/h rating works out at about 43 knots, beyond the top of force 8, which shows how much of that rating depends on the anchoring it was tested with.
A simple closing routine
- Name who decides to close parasols on each shift.
- Check the forecast for gusts, not just the average wind speed.
- Close at the manufacturer’s stated limit or sooner, and always in gusty or stormy weather.
- Close and strap every parasol at the end of service and whenever the terrace is unattended.
- After wind, inspect ribs, hubs and the base before reopening.
- Let a wet canopy dry before storing it, and store parasols under cover in winter, as Glatz recommends.
Parasols on a pavement licence in England
The national pavement licence guidance lists umbrellas, barriers and heaters among the furniture a licence can cover, and says licensed furniture must be removable, meaning not a permanent fixed structure, easy to move and able to be stored away at night. It asks that furniture be of reasonable substance so it cannot easily be pushed or blown over by the wind, and refers to Inclusive Mobility: a 2,000 mm clear route is the normal minimum, and 1,500 mm could be regarded as the minimum acceptable distance between two obstacles. Check your council’s own conditions as well. Our guide to pavement licences in England covers the application process.
Frame and canopy: what to specify
For commercial use, ask for the frame material and section, the canopy fabric and its finish, the recommended base weight or fixing for the model, and the stated wind limit, all in writing. A commercial café parasol should be specified alongside the base it is designed for, not bought separately. For how aluminium, teak and synthetic materials cope with UK weather, see our guide to commercial outdoor furniture materials.
Mistakes to avoid
- Buying the base on price rather than to the manufacturer’s stated weight.
- Using a garden-weight base for a large cantilever.
- Leaving parasols open overnight or when the terrace is closed.
- One oversized canopy on an exposed rooftop.
- Letting fillable bases run low.
- Placing parasols so canopies or bases narrow the clear pedestrian route.
Planning a fit-out?
Specify parasols with your terrace furniture
Send your terrace plan, table sizes and site exposure. We return a written specification and quotation for parasols, bases and furniture, then a pre-production sample in your chosen finish and fabric for written approval.
Frequently asked questions
How heavy should a commercial parasol base be?
Follow the manufacturer’s figure for the model. As a sense-check, Ruma’s UK guide suggests 40 kg for a 2.5–3 m centre-pole parasol and at least 90 kg for a 2.7–3 m cantilever, while Belveo gives 80 kg and 100 kg for similar sizes in professional use. Go heavier on exposed sites.
At what wind speed should you close a parasol?
Close at the manufacturer’s stated limit or sooner, and always in gusts. Limits vary widely: FARE designs its parasols for light winds up to force 3, while Glatz rates its windproof range at up to 80 km/h when properly anchored.
Can I bolt a parasol to the pavement outside my café?
Under the pavement licence guidance in England, furniture bolted to the ground or that cannot reasonably be removed falls outside a pavement licence. Ground fixings on private land may still need landlord or council consent, so check before installing.
Are cantilever parasols suitable for windy terraces?
They need much heavier bases than centre-pole parasols. Glatz says side-mast parasols are not suitable for locations exposed to extremely windy conditions, and recommends a centre-pole parasol with a permanent ground fixing there.
Sources
- Parasol Base Weight: A UK Guide To Get It Right, Ruma (accessed 28 October 2026)
- Professional parasol weight and ballast guide, Belveo (accessed 28 October 2026)
- Windproof parasols, Glatz AG (accessed 28 October 2026)
- Beaufort wind force scale, Met Office (accessed 28 October 2026)
- Pavement licences: guidance, Ministry of Housing, Communities and Local Government (GOV.UK) (accessed 28 October 2026)
- Operating manual: parasol models 8160, 8201 and 8240, FARE – Guenther Fassbender GmbH (accessed 28 October 2026)