EZ Access Transitions Modular Entry Ramp helps people in wheelchairs and scooters gain access to buildings that are otherwise impossible to enter. These ramps work well in any situation where you need a small ramp installed. Also, the modular design allows for the perfect fit to your doorway. Whether you need it installed in your home so you can freely come and go as you need, or you have a building that needs to be more accessible, the Transitions Modular Entry Ramp will get the job done. These transition entry ramps work on doorways up to inches high. Simply measure how high you need the ramp to go and then select the appropriate model. It is also important to note that the doorway or entry way must be at least 34 inches wide or the Transitions Modular Entry Ramp will not fit.