This 3d model is low poly and game-ready. Real-world scale (millimetres). You can buy this model as part of the collection https://www.cgtrader.com/3d-models/various/various-models/medieval-collection Buying this collection will allow you to save an additional 119 USD (the total cost of separate models is 618 USD)
A trapdoor is a sliding or hinged door, flush with the surface of a floor, roof, or ceiling, or in the stage of a theatre. A hatch, an opening which may also be in a wall and need not be flush with the surface, is similar; in some cases either name is applicable. A small door in a wall, floor or ceiling used to gain access to equipment is called an access hatch or access door.
Formats: .MAX (3ds Max 2016 + V-Ray) .FBX .OBJ
Textures (2048x2048 .PNG ): diffuse albedo (base color) specular metalness roughness glossiness normal (DirectX, OpenGL) ambient occlusion (AO)
Rendered in Marmoset Toolbag 3.