# Partition load allowance explained

> Movable partitions are covered by a load allowance rather than counted one by one. Here is what the allowance is, typical values, and when a partition is counted as dead load instead.

**Category:** Codes & standards  
**Author:** Sam Rivera (Structural engineer · Educator)  
**Published:** 2026-05-02

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You cannot predict where the partitions will go, so the code makes you carry an allowance for them everywhere. A partition load allowance is a uniform load, often around 1.0 kPa, added across a floor to cover movable partitions whose position is unknown, and it is usually treated as live load. Fixed, permanent partitions are counted instead by their real weight as dead load. StructLoads lets you add the allowance to the floor load, and this page explains when each applies.

## Why an allowance exists

A [wall](https://en.wikipedia.org/wiki/Wall) partition has real weight, but in many buildings the partitions are movable and their future positions are unknown when the structure is designed. Rather than guess a layout, the code spreads a uniform [load](https://en.wikipedia.org/wiki/Structural_load) allowance over the whole floor, so that wherever a partition ends up, the floor can carry it. This is the same idea behind conservative [imposed load](https://www.designingbuildings.co.uk/wiki/Imposed_load) values: design for an unknown but credible use.

## Fixed versus movable

The treatment splits on permanence.

| Partition type | How it is counted | Load category |
| --- | --- | --- |
| Fixed, permanent | Real weight, by geometry | Dead load |
| Movable, relocatable | Uniform allowance | Usually live load |
| Heavy fixed (masonry) | Real weight, explicitly | Dead load |

A permanent partition you can locate is counted as [dead load](/blogs/dead-load-vs-live-load-explained) by its actual weight. A movable partition you cannot locate is covered by the allowance. The same physical wall can therefore be dead or live depending on whether it is permanent.

## Typical values

A common partition allowance is around 1.0 kPa added to the floor, though it depends on the code and the expected partition density and type. The US code version is precise about it: in [IBC Chapter 16](https://up.codes/viewer/california/ibc-2018/chapter/16/structural-design), Section 1607.5 requires a partition live load of at least 15 pounds per square foot, about 0.72 kPa, wherever partition locations are subject to change, and waives it only when the specified live load already reaches 80 pounds per square foot. Light demountable partitions justify a smaller allowance; heavier movable partitions a larger one. The exact figure comes from your governing code, and it is added to the floor load alongside the occupancy live load from [typical floor live load values](/blogs/typical-floor-live-load-values-by-occupancy).

## A worked example

Take an office floor with a 3.0 kPa occupancy live load and a 1.0 kPa partition allowance. The total live load is 4.0 kPa. Over a 30 square metre interior column tributary area, that is 120 kN of live load per floor, of which 30 kN is the partition allowance. Leaving the allowance out would understate the live load by a quarter on this floor, which is why it is easy to under-load an office by forgetting it.

## Where it sits next to superimposed dead load

The partition allowance is distinct from [superimposed dead load](/blogs/what-is-superimposed-dead-load), which covers permanent finishes and services. Fixed partitions belong in the superimposed dead load as real weight; only movable partitions use the live allowance. Keeping the two straight matters because dead and live are factored differently and only live load can be reduced over large areas.

## When to count partitions explicitly

The allowance covers ordinary movable partitions. When the real partitions are heavier or more concentrated than a light uniform allowance assumes, such as full-height masonry or a dense fixed layout in one zone, you count those partitions explicitly as dead load by their weight and position. The allowance is a convenience for the unknown case, not a substitute for a known heavy partition.

## Key takeaways: partition load allowance

A partition load allowance, often about 1.0 kPa, covers movable partitions of unknown position and is usually treated as live load; fixed partitions are counted as dead load by their real weight. Add the allowance to the floor live load where layouts can change. StructLoads carries the value you enter as a preliminary figure a qualified engineer confirms against the code.

## Quick answers

### What is a partition load allowance?
It is a uniform load, often around 1.0 kPa, added across a floor to cover movable or relocatable partitions whose future position is not known. Because you cannot place each partition in advance, the code spreads an allowance over the whole floor instead. It is usually treated as part of the live load and applies where layouts can change.

### Is a partition a dead load or a live load?
It depends on whether it is fixed or movable. A permanent, fixed partition is counted by its real weight as dead load. A movable or relocatable partition is covered by the partition load allowance, usually treated as live load, because its position is unknown. So the same kind of wall can be dead or live depending on permanence.

### What is a typical partition allowance value?
A common value is around 1.0 kPa added to the floor, though it depends on the code and the expected partition type and density. Heavier or denser movable partitions can warrant a larger allowance. Use the value from your governing code, and where a known fixed partition is heavy, count it explicitly as dead load instead.

### When is the partition allowance not enough?
It is not enough when the actual partitions are heavier or more concentrated than the uniform allowance assumes, such as full-height masonry partitions or a dense layout in one area. There you count the real partitions as dead load rather than spreading a light allowance. The allowance covers ordinary movable partitions, not heavy fixed ones.