Surface requirements
Gazebo and Pergola Installation Surface Requirements
The install surface is one of the first details to review because it affects layout, levelness, anchoring, drainage, finished appearance, and whether the project is ready to schedule.
Concrete, pavers, decks, prepared pads, and unprepared ground each create different questions. The product manual and the actual site both matter.
Use the guide to prepare better project details.
The most useful next step is usually a clearer picture of the product, site, surface, constraints, and timing. That context makes the Project Review more productive.
Before requesting review
- Confirm the structure type, product, size, or rough goal.
- Gather wide photos of the installation area and access path.
- Note surface, approvals, delivery timing, and any constraints.
Direct answer
A flat-looking surface is not always install-ready
Most outdoor structures need a surface that fits the product requirements, supports the structure, allows a practical anchoring path, and provides enough room to build safely.
The most common surprise: nearly everyone assumes their concrete pad is level, or at least flat. We have found that many are not — and even a slightly out-of-level pad travels up through the posts and shows up at the very end, when the roof panels refuse to fit. That is not a re-pour-the-slab problem; it is a know-it-before-the-roof problem. Depending on the installation, we shim the structure level — temporarily or permanently — before the roof goes on. But every model shims differently, which is exactly why the review asks for surface photos and the exact model up front: we want the right fix on the truck before install day, not discovered on it.
Photos, measurements, surface type, slope, drainage, and access should be reviewed before assuming the project is ready.
- Existing concrete may still need levelness and condition review
- Pavers can shift or create anchoring questions
- Decks need structural and product-specific review
- Grass or dirt usually means more preparation is needed
Site check
What to check before install day
Surface review should happen before delivery blocks the driveway or the crew arrives to find that the structure cannot be placed or anchored as expected.
Next step
Where to go from here
Not sure what your surface can support? That is exactly what the Project Review checks first. Send photos of your surface and we will tell you what ready means for your product before you spend anything on site prep.
Surface types
Common surfaces and questions
Existing concrete
Check condition, levelness, dimensions, edge distance, drainage, and whether the product allows the planned anchoring path.
New concrete
Plan size, placement, thickness, cure timing, drainage, and product requirements before pouring.
Pavers or deck
Review movement, structure, anchoring limitations, manufacturer requirements, and whether additional prep is needed.
Grass or ground
Usually needs a prepared base, concrete, pad, footings, or another approved installation path before scheduling.
Photos and details to send
- Wide photos of the install area from multiple angles
- Close photos of surface condition and edges
- Surface type and approximate dimensions
- Known slope, drainage, cracks, movement, or uneven areas
- Product link, model, manual, and anchoring instructions if available
Project questions
Can a gazebo or pergola be installed on pavers?
Sometimes, but pavers need careful review because movement, base condition, anchoring, and product requirements can affect the installation path.
Is an existing concrete patio always ready?
No. Existing concrete should still be reviewed for size, condition, levelness, edge distance, drainage, and compatibility with the structure.
What should I send for surface review?
Send the product link or model, surface type, dimensions if known, wide photos, close photos, and any known slope, drainage, cracking, movement, or access concerns.