Allied Air Curb Adapters — Every Model

SMARTCurb has verified curb geometry for 3 Allied Air rooftop-unit models — from the CHA15261/311/411/413/461/463/511/513/651/653 to the LGH420/480/540/600. Model numbers on file include CHA15261/311/411/413/461/463/511/513/651/653, CHA16090, LGH420/480/540/600, among others. Verified curb footprints span 58.5″ × 47″ to 87.5″ × 252″ across the line. Every adapter compiled from this data ships as fully welded 16-gauge galvanized steel, fabricated by Taylor Metals in Pitt Meadows, BC. Each page also lists nearest-footprint compatible pairings, including across other manufacturers, as a starting point for sourcing a replacement. As with any curb replacement, treat these numbers as a starting point — SMARTCurb flags any pairing that needs dimension review before it compiles a final adapter, rather than guessing silently. Every listing below links to its footprint and a live curb-adapter compile in the workspace.