The Spruce says that the average lifespan of a sofa purchased today is 7 to 15 years, and this lifespan is probably similar for many other furnishings and interior materials. This might seem like a long time, but the reality is that during your lifetime, it’s likely that you may need to repeatedly make replacements, which is not only expensive, but also wasteful.
Extending the life of interior materials should be part of sustainable design, and this is why.
Longer-Lasting Materials Reduce the Environmental Cost of Replacement
Durable flooring, furniture, wall finishes, upholstery, and joinery can all reduce the frequency of replacement. As a result, this can significantly reduce demand for new raw materials, as well as manufacturing, transportation, and installation. As owner of Boss Systems, Alan Green, says, “Quality should be built to last.”
When you design with longevity in mind, this means that you’ll select materials that can withstand the wear and maintenance demands of the environment. As a result, this shifts sustainability from one-time material choices toward a whole-life approach.
Durability Helps Lower Embodied Carbon Over a Material’s Lifetime
A material’s environmental footprint doesn’t end when it’s installed; every replacement afterward can trigger another cycle of:
- Extraction
- Manufacturing
- Transportation
- Construction
Designing interiors around durable materials can extend the period between replacement cycles, which is especially important in high-traffic commercial spaces. Lifecycle thinking can challenge the idea that the lowest-impact material is always the one with the smallest initial footprint. For example, if you choose a more durable option, then you can get greater environmental benefits if it prevents repeated replacements.
Repair and Refurbishment Keep Valuable Interior Materials in Circulation
Just because you extend material life doesn’t necessarily mean you have to leave everything untouched. Sustainable design can mean components are easier to repair, reupholster, refinish, reconfigure, or repurpose as needs change.
Refurbishment and reuse are strategies that can not only reduce construction waste, but also energy use and environmental burdens. To support this approach, designers can use:
- Accessible fixings
- Replaceable components
- Finishes that can be renewed
Planning for maintenance can also make interiors more adaptable. This allows businesses to update their spaces without automatically replacing everything inside.
Designing for Disassembly Makes the Next Life of Materials Easier
Ideally, these products should have a useful life way beyond their initial installation. This is why design should account for disassembly. This can make it easier to recover flooring, furniture, partitions, fixtures, and other elements.
When a space is renovated or repurposed, you can separate products with minimal damage. Then, they can be reused elsewhere, or refurbished, repurposed, or recycled.
This ensures that materials retain value instead of becoming construction waste at the end of a fit-out. It also gives future designers more options when adapting a space to new occupants or functions.
Think Further When Doing Interior Designs
A material may not seem much at first glance, but with the right designs, it can persist for decades, retaining purpose as styles and needs change. With great sustainable design, you can anticipate what happens to products years later and make them have continued use for as long as possible.
