The Costco Thomasville Devyn Sectional is about 120×81.5×36 inches assembled. Check whether the real carry object fits up your stairs, with conservative notes for Costco source uncertainty.
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The item
The Thomasville Devyn is a Costco fabric sectional with a storage ottoman, about 120 by 81 inches once assembled and near 289 pounds in total. It is delivered as separate sections rather than one giant piece, so the single largest section, not the full footprint, decides whether it fits. Costco does not publish per-piece cartons, so measure your biggest section on delivery.
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Three possible answers
These are illustrative scenarios, not guarantees for your space. Run your own measurements through the checker below for a result you can trust.
Details before you move
The largest single piece matters. The published 120×81.5×36 inches assembled footprint describes the finished sectional, but each piece moves separately.
Costco publishes the assembled footprint, not per-piece carton sizes. Use these numbers as a planning estimate, then measure the actual delivered piece or carton before moving it.
No. Enter the largest separate section if you can measure it. The assembled footprint is useful for room layout, not path clearance.
Measure the stairs opening, the first turn after it, floor protection clearance, and the real width, depth, and height of the carry object.
Keep checking the route
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