A Gazebo for a Small Yard or Patio
The 9.5'x9.5' hardtop gazebo publishes the smallest roof footprint in the range; the wall-mounted lean-to gazebo is worth considering separately if a clear exterior wall is available, since it needs wall length rather than open floor space.
Start with the roof size, then the usable space
A small yard rules out the range's largest gazebos - 11'x13' and 13'x15' - before roof shape or frame material becomes relevant. But roof size alone is not the full picture: see why the roof size isn't the usable floor space before assuming a published footprint leaves as much room as it looks like on paper.
The smallest roof footprint in the range
At 9.5' x 9.5', the hardtop gazebo publishes the smallest stated footprint of any free-standing structure here - smaller than either 10'x12' wood gazebo. It is also the range's only steel-framed model; see wood vs. hardtop compared directly if frame material matters alongside size.
If there's a wall but not much open floor
The wall-mounted lean-to gazebo needs a length of clear wall and projection depth rather than open, rotatable floor space - a genuinely different question from every free-standing gazebo here. See wall-mounted vs. free-standing for what that changes, including what is still unconfirmed about which of its two published dimensions runs along the wall.
What to skip for a small space
The 11'x13' spruce gazebo and the 13'x15' gable gazebo are the range's two largest roof footprints - see them for a yard with real room to spare instead. Whichever gazebo is chosen, remember that ground clearance beyond the roof edge is not published by GARTOO or calculated here - see clearance from your house and fence before finalizing a spot.
Questions
What's the absolute smallest gazebo roof size in the range?
9.5' x 9.5', the hardtop model - smaller than any of the wood gazebos published here.
Is the lean-to gazebo smaller than the free-standing ones?
No - at a published 434 lb it is the heaviest gazebo in the range. What it needs is different, not smaller: a length of clear wall rather than less floor space.
Should I pick by roof size or usable floor space for a tight yard?
Usable floor space is the more relevant figure once it is published - roof size alone overstates what you actually get to stand or sit in. Check each gazebo's own sizing page as that data is collected.