Single Groove Handrail Molding features one precision-cut groove designed to accept various baluster shapes and sizes, ensuring a secure and consistent fit. This standard 1-3/4" wide profile contrasts with the wider 2-7/32" heavy rail molding, offering a traditional handrail size suitable for most railing installations. It is commonly used in staircases, landings, and railing systems in residential, commercial, and architectural settings. Available in up to 20' length sections.