Will the largest washer hold a king quilted mattress pad ?

I think so. This is a very good laundromat. The owners are great.

HI Mildred, Good Question! It should fit. The largest washers we have hold 60lbs (6 loads of laundry). as long as you have about 3-4 inches at the top of the drum after loading it you should be fine. when drying it you want to use our 50lb (biggest) dryer. Dry it on low to medium heat. hope this answers your question. have a great day and thank you for your interest in our laundromat.

Yes,oversized washers and dryers,extreme clean

Yup

Yes