Lennox GCS10261/311/411/413/461/463/511/513/651/653 — curb adapter & replacement fit
The Lennox GCS10261/311/411/413/461/463/511/513/651/653 mounts on a roof curb with an overall footprint of 66.5″ × 44.5″. SMARTCurb can compile a fabrication-ready curb adapter between this unit and hundreds of other rooftop units — replacement without touching the roof deck.
Curb footprint: 66.5″ × 44.5″ (L × W)
Covered models: GCS10261/311/411/413/461/463/511/513/651/653
Existing-curb pattern drawing — reference only, verify dimensions before fabrication.
Replacing a Lennox unit? Read the Lennox curb compatibility guide →
Compatible replacement pairings
- Lennox 13CHAA42/48/60 72″ × 43.5″
- Lennox ZHB036S4B 71″ × 42.3125″
- Lennox ZHD060S 71″ × 42.25″
- Lennox CHA16H261/ 311 60″ × 45″
- Lennox ZCA/B036/048/060/072 71″ × 42″
- Lennox CHA16048/60 69″ × 50.5″
- American Standard BTC100G 66.5″ × 44.5″
- American Standard BTC090/120G 66.5″ × 45″
Need this fabricated?
Taylor Metals builds SMARTCurb adapters in 16 ga galvanized steel, fully welded, ready to set. Vancouver / Pitt Meadows, BC.
Request a quote — most quotes within 24 hours