There is provided a door trim including: an armrest; an ornament member coupled to the armrest; and a planar heater configured to warm the armrest or the ornament member. The planar heater is disposed between a resin core member and a surface member which form the armrest or the ornament member, and includes a nonwoven fabric and a heating wire fixed to the nonwoven fabric. The nonwoven fabric includes first and second bonded parts and a connection part connecting between the first and second bonded parts. The second bonded part is routed to be disposed on the back surface side of the armrest (the back surface side of the ornament member) by the connection part being inserted into an interface gap between the armrest and the ornament member. A thermostat is mounted on the second bonded part.