Stannah stairlift will work for staircases where the minimum width is 29 inches or even 28 inches in width. The length of your stairs will not be an issue for installation, as we can make the rail to be any length needed; however, it will be a factor in the total cost of the stairlift. Call now for a free no-obligation in-home evaluation with a guaranteed price in writing 888 532-3834 (Click To Call).