Wall

Walls are part of buildings, and can be added or removed in Build Mode. Walls define rooms, and keep the inside in and the outside out - which is particularly important with Seasons. Some items, such as paintings, pictures, toilets, fireplaces, fire and burglar alarms need to be placed against walls. Walls can also be built diagonally which will give the house more interesting shapes. Windows ans doors can be placed on diagonal walls.

Some players kill or trap Sims and NPCs by surrounding them with walls. Sims will then eventually die from hunger.

Walls can be covered by paint, wallpaper, brick, stone, wood panels and siding, etc. to increase the mood of Sims. Walls not covered will give sims negative moodlets.