Thinking about sprucing up your building with new wallcovering for your corridors, offices, etc.? When creating your budget, you may want to make sure you add a line for "attic stock". Wallcovering manufacturers have enormous libraries of design and color options for you to choose from. In order to keep up with the times though, they are constantly creating new products, but discontinuing old ones. This becomes a costly issue when you need to repair a damaged area of your wallcovering, but don't have any extra wallcovering in stock ("attic stock"), and find out that the product is no longer being produced. What could have been a small patch repair, now becomes an entire corridor/office remodel.
Most wallcovering manufacturers will guarantee stock of an item for 3-5 years after its introduction. Sometimes a popular design may be kept around, but the color will be changed every 5 years or so. And once in awhile, a very high-selling product may be moved into a building standards collection, where it may stay available for 7-10 years. The manufacturer will be able to tell you when the item was created, and a rough estimate of how long the product will still be available for.