Wall-Mounted Lean-To vs. Free-Standing Gazebo
A wall-mounted lean-to gazebo attaches to an exterior wall instead of standing on its own four posts, which changes what it needs from a space - a length of clear wall and a fixed projection depth, not an open, rotatable footprint.
What "lean-to" means structurally
The range's 10'x12' lean-to gazebo mounts to an exterior wall using pre-drilled hardware and additional support tubes, rather than standing free on posts on every side the way the other five gazebos do. One edge of the structure is the wall itself.
Why the fit check is different, not just smaller
A free-standing gazebo's footprint can be checked against a yard in either orientation - rotate it 90 degrees and it may still fit a space it wouldn't fit unrotated. A wall-mounted structure cannot be rotated to test a second orientation once it is fixed to a specific wall; the question is whether that wall has enough clear run, and enough clear space projecting out in front of it, not whether some rotated rectangle fits somewhere in the yard. The lean-to's own sizing page checks a wall run and depth for exactly this reason, instead of the yard-rotation table every free-standing gazebo gets.
What's still unknown about this model
The lean-to publishes the same two roof numbers as the free-standing 10'x12' gazebos - 10 feet and 12 feet - but neither GARTOO's title, its feature text, nor its Creators API data states which of the two runs along the wall and which projects outward. Rather than guess, both figures are left unassigned on this site until that is confirmed.
Why it's the heaviest gazebo in the range
At a published 434 lb, the lean-to is well above the 228.67-276 lb range of the free-standing 10'x12' gazebos. GARTOO does not explain the difference directly, but the wall-mounting hardware and additional support tubes this design needs are components the free-standing gazebos do not carry.
Questions
Can the lean-to gazebo stand on its own without a wall?
No - it is designed to mount against an exterior wall of sufficient length; see the free-standing gazebos if no suitable wall is available.
Which side of the lean-to's 10'x12' roof runs along the wall?
Not stated anywhere GARTOO publishes for this listing - see its own sizing page for why neither figure is assumed.
Does the lean-to gazebo cost less to ship because it's smaller?
It is not smaller - at 434 lb it is the heaviest gazebo in the range, and shipping is not covered by this site regardless.