How much weight will a spa cover hold?
People frequently ask how much weight a cover will hold. While all of our covers meet or exceed ASTM Standard F1346-91, there is not specific weight rating for each specific thickness and density of foam. There are many reasons for covers not having a “weight rating” or “load rating”, but the most prevalent would be general liability issues. That being said, the chart below compares the overall strength of different foam densities and thicknesses. This compasison is based upon an 8′ square cover, of the longest industry standard, of 4″ to 2″ tapered foam with a density of #1 (with a rating of 1). A rating of 2 would be twice as strong as a rating of 1, a rating of 3 is 50% stronger than a rating of 2 etc.
