A Marble door is a door that can be built in the Dungeon of a player-owned house with the Construction skill. Marble doors give 20 Thieving experience if pick-locked or the same amount of experience in Strength if forced open. Due to the cost of building a Marble door and the high level requirement to build it, it is very rarely seen in a player's Dungeon.
| Rooms | |
| Stairs/Rugs |
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| Doors | |
| Traps |
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| Guards |
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| Decoration | |
| Lighting | |
| Guardians |
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| Treasure | |
| Doors | |
| Decoration 1 | |
| Decoration 2 | |
| Lighting | |
