Frequently asked questions
The questions readers send most, answered with the published figures and a link to where each came from.
Last updated
We compare published manufacturer specifications, warranty terms and owner-reported failure modes. We have not physically tested these structures. How we judge shade structures
Where a question has a longer answer than belongs here, the link goes to the page that carries the full version — including the tables and the sources behind each number.
Choosing a structure
What is the best backyard shade structure?
It depends on whether you need rain cover. A louvered aluminum pergola gives adjustable shade plus rain cover with a published wind rating. A hardtop gazebo gives full rain cover in a fixed footprint. A shade sail is the cheapest square foot of shade and offers no rain cover. A retractable awning is the only option that gives you full sun and full shade on the same afternoon. Start at pergolas or gazebos if the structure is permanent.
What is the most durable shade structure material?
Powder-coated aluminum has the longest maintenance-free service life; cedar has the longest repairable life. Neither is universally more durable — the deciding factor is whether the structure actually gets maintained. How long shade structures last has the service-life table by material.
Which is better, a pergola or a gazebo?
A pergola handles wind better because an open roof lets air through; a gazebo handles rain better because a solid roof sheds it. The published wind ratings show the trade clearly — pergolas in our tables run 70-100 mph, hardtop gazebos 40-50 mph. Pergola vs gazebo is the full comparison.
How much should I expect to spend?
We do not publish prices, because they change weekly and a stale figure is worse than none — our buy buttons go to the live price instead. What we can tell you is where the money goes: frame gauge, roof material and warranty length are what separate price tiers, and the cheapest structure in any category is almost always the one with no published wind rating.
Do you test these structures yourselves?
No. We compare published manufacturer specifications, warranty terms and owner-reported failure modes — we have no product access and no test rig, and every page on this site says so. Our methodology explains what that method is good for and where it stops.
Wind and snow
How much wind can a pergola withstand?
Published ratings among the pergolas we track run from 70 mph to 100 mph — and every one of those figures assumes the structure is bolted to a hard surface. PURPLE LEAF states 72 mph for the Athena only when it is secured with expansion screws on a hardened floor; Backyard Discovery states 100 mph for the Beaumont when properly anchored. Wind ratings explained has the full chart.
How much wind can a hardtop gazebo withstand?
Lower than a pergola, and the reason is physics rather than build quality: a solid roof loads in wind instead of letting it through. Published figures we can source run 40 mph (PURPLE LEAF) to 50 mph (Sunjoy), and several manufacturers publish nothing. Gazebo wind ratings collects them.
Can a pergola withstand a hurricane?
No pergola in this price range is rated for hurricane-force wind, and no manufacturer we track claims it. The highest published figure we have found is 100 mph, which is a strong-storm number and assumes a correct concrete anchor. Treat any structure in a hurricane zone as something to prepare, not something to trust.
Do gazebos blow away?
Unanchored ones do, routinely, and well below their printed wind rating — because an unanchored structure has no meaningful rating at all. The figure was never measured in that condition. How to anchor a gazebo covers the correct fixing for each surface.
What snow load do I need?
You need your region's ground snow load, which varies enormously across the US and is set locally rather than nationally — ask your local building department. Then compare it against a per-square-foot published figure. Snow load explained walks through it.
Why do some manufacturers publish snow load in pounds and others in pounds per square foot?
Because some publish a total weight across the whole roof and others publish a load per square foot, and the two are not interchangeable. Sunjoy states 3,000 lb for its 12 x 14 Kingston — a whole-roof total, which works out around 18 lb/ft² once you divide it by the area. A total-weight figure means nothing until you do that division. We label which form each figure is in rather than mixing them.
Do I need to clear snow off a hardtop gazebo?
Yes, and the manufacturers say so themselves — Sojag's own guidance is that accumulation should always be removed even from its four-season roof. Treat a published snow figure as a survival ceiling, not permission to leave the roof loaded. Gazebo snow load explained covers safe removal.
Anchoring, permits and installation
Should a pergola be anchored?
Always. On most kits the manufacturer requires it — Backyard Discovery states the product must be anchored as specified in its manual — and beyond the warranty question, the published wind rating simply does not apply to an unanchored structure. How to anchor a pergola covers concrete, pavers, decks and grass separately.
Is the anchoring hardware included?
Usually not, and this is the detail that catches most buyers. Sunjoy supplies stakes for soft ground and tells you to source expansion bolts for hard surfaces yourself. Yardistry supplies post mounting brackets and states plainly that anchoring hardware is not included because mounting surfaces vary. Budget for the right fixings for your actual surface — it is the last hundred dollars of the project and the part that decides the outcome.
Can I anchor a pergola without drilling into concrete?
There are options — ballasted post bases, deck-mounted brackets, planter systems — and they are genuinely weaker than a through-bolted concrete anchor. Whether that is acceptable depends on your exposure. How to anchor a pergola covers each no-drill option and what it actually holds.
Do I need a permit?
Often, and more often for a structure attached to the house than a freestanding one, because bolting to the building can count as a structural alteration. Thresholds vary by jurisdiction — check with your local building department before you buy, not after. Pergola permits and HOA explains what the question usually hinges on.
Can I put a pergola or gazebo on a deck?
Yes, and the fixing is different from concrete and different again between wood and composite decking. A deck also has to carry the load, which means anchoring into joists or blocking rather than the deck boards. Deck shade solutions and the anchoring guides cover it.
Why does my shade sail sag?
Almost always one of three things: the fabric stretched and there is no turnbuckle to take it up, all four corners were set level so the sail has no twist in it, or an attachment point moved. All three are hardware and geometry problems, not fabric problems. Shade sail sizing and tension has the fix.
About this site
Why does this site say "not published by manufacturer" so often?
Because it is true more often than the niche admits. Most manufacturers in backyard shade do not publish a wind rating or a snow load, and several publish one without the other. When a figure does not exist in the manufacturer's own material we write that rather than estimating it or copying one from another site. It is the honest answer, and the frequency with which it appears is itself useful information about a product.
Why don't you show prices?
Prices on these products move constantly, and a price printed on a page is wrong within a week — at which point it is worse than useless, because it is a number you might act on. Our buy buttons go to the live price instead. We also publish no discounts and no price predictions. See the affiliate disclosure.
Why are there no customer reviews or star ratings on this site?
Because we have no review data for these products, and inventing some would be the fastest possible way to make everything else on the site untrustworthy. Where we reference what owners report, it is labeled as owner-reported and linked, never presented as our own experience.
How do you make money?
We earn a commission when a reader buys through one of our Amazon links. It costs you nothing extra, every link pays the same rate regardless of which product we recommend, and commission is not one of the ranking criteria. The affiliate disclosure has the full picture and the methodology has the criteria.
How do I report an error?
Email contact@slatandshade.com with a link to the page and the figure you think is wrong. If we were wrong, we correct it within seven days and note the change on the page with a dated line — we do not make silent edits to factual errors. Our editorial policy is the commitment in full.