Commercial Ironer Sizing Calculator

Sizing a flatwork ironer — the roll-and-chest machine that presses sheets, pillowcases, and tablecloths flat and dry in one pass — starts from how much fabric area has to move through it in a given day, not how many pieces. This calculator multiplies your daily piece count by the average square footage of a piece to get total daily square feet, then divides by your planned operating hours to get a required throughput rate in square feet per hour. Converting that to a required feed speed in feet per minute and comparing it against a single ironer's actual rated speed tells you how many lanes (parallel feed paths on wide multi-roll machines) or separate machines you need — the calculator rounds this up to a whole number, since you can't run a fractional lane.

From the lanes-needed figure, the calculator also estimates total heating capacity by assuming a flat 50,000 BTU per lane, a rough industry rule-of-thumb rather than a manufacturer-specific spec — real BTU requirements vary by roll diameter, chest temperature, and steam versus gas heating, so use this as a ballpark for budgeting conversations with an equipment vendor, not a final specification. Recommended roll width is likewise a simple lookup by average piece size (48 inches for pieces under 20 sq ft, 80 inches for 20-35 sq ft, 120 inches for larger pieces like king sheets or banquet cloths) rather than a calculated value. The average-piece-area input is the one most worth scrutinizing: a laundry mix that's mostly small pillowcases with some large tablecloths blended into one average can undersize the ironer for its actual largest and most common items — consider running this separately for your dominant piece category if your mix is not fairly uniform.