Threshold ramps are designed to provide a smooth transition between floor surfaces with a small difference in height. They are ideal for indoor and outdoor use, including entry into your home, sunken rooms, or to a patio or porch. The ramps are also helpful for getting over small moldings between hardwood and carpeted flooring. Wheelchair threshold ramps are an easier and safer option than having a caregiver angle or forcefully push a chair over an entryway. These ramps are suitable for use with manual and power wheelchairs. Express Medical Supply offers all-metal ramps and ramps with a rubberized surface for extra traction.