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Not all attic floors are created equal—size, layout, and square footage often vary. The amount of weight an attic floor can hold depends on several factors including the joist size and position, any structural supports or subfloors, and the original intent of the attic design. Without structural reinforcement, your floor might only be able to support about 10 pounds per square foot of floor load before collapsing.

A subfloor's lifespan can range from 30 years to the entire life of the house, which is often between 50 and 100 years. The actual longevity depends on the material and its protection from damage. For example, while OSB may last longer than plywood, it is not the best choice for heavy flooring like ceramic tile. The most critical factor is moisture; a subfloor that avoids water damage, mold, and termites can last for decades. However, prolonged exposure to moisture will cause it to warp, rot, or grow mold, significantly shortening its life.

Most cities accept old carpet as bulk trash, typically without any nails or glue on the base of the carpet. You may be required to request a specific pickup and wrap the carpet into specific bags. You can also visit your local recycling center and pay a small fee to have the carpet materials recovered.

A 65-oz. carpet is good, and in many cases, it indicates a premium carpet. Most carpets for homes should fall in the range of 40 to 60 ounces for face weight. If a carpet has a 65-oz. face weight, it is likely more durable and long-lasting than a similar carpet with a lower face weight. Carpet face weight is just one factor in determining a carpet’s quality.