Requirements to Obtaining your License. 1  To become a licensed contractor in Florida, applicants must sit for two exams: business and finance and the trade. 2  Applicants must document four years of experience. 3  The minimum general liability insurance that is required for licensure is $100,000 for bodily injury and $25,000 for property damage.
Upholstery foam can range from $12.00 a sheet (sold in 24 by 24 by 2 inch sections for dining room chairs) to over $126.00 a sheet (6 by 24 by 84 inch). Foam Density Upholstery foam is rated in density by a 2 digit number ranging from 18 to 35 with a decimal point between the 2 numbers so a #18 foam would be 1.8 foam.
The ultimate use of the furniture will determine how thick the foam should be. Dining room chairs as an example would typically prefer a medium soft foam (2.8 rating) but if you're after extra comfort then you could always go much softer than that if you like. Seat back cushions are typically much firmer than the seat cushion so keep that in mind when having chairs upholstered.