Inner wall - the thickness


Buildings consist of exterior and interior walls. The outer walls must be relatively thick for various reasons. In the inner walls, however, almost all dimensions are conceivable from very thin to very thick. You can read more about the thickness of an interior wall here.

Subdivision of the interior walls according to different aspects

To make it clearer, interior walls have to be subdivided according to different aspects. There are many possibilities here:

  • Interior walls in wet or dry construction
  • in wet construction according to building material
  • supporting or non-supporting interior walls
  • according to individual requirements such as sound insulation

The drywall can be very thin, but then has disadvantages

With the clearest difference lies between dry and wet construction. The interior wall in dry construction is more to be understood as a partition. As a rule, a stand is erected and this then planked from both sides with drywall panels. There is no carrying capacity here.

Sound insulation for less thick drywall interior walls

Noise protection depends on numerous factors. The thickness starts at about 5 cm. Accordingly, however, the soundproofing then fails. The basic stability is also rather limited. On the other hand, the wall thicknesses can be up to 11.5 cm, which means that sound insulation and stability can be sufficiently taken into account.

Interior walls in wet construction - from thin to relatively thick

For interior walls in wet construction, a distinction must be made in particular according to the building material. Very common are bricks or hollow bricks, followed by aerated concrete (gas concrete) and limestones. But also concrete is used.

Again, the immediate requirements are crucial

These inner walls can be designed to be load-bearing and non-load-bearing. Carrying they have to derive the entire weight. Sound insulation and fire protection are extremely good even with very small wall thicknesses. In addition, the walls are so stable that even very heavy objects such as kitchen cupboards can be easily attached. Drywall construction in particular is reaching its limits here, even though drywall can be double-planked.

Typical thicknesses of interior walls

Even in wet construction, the wall thicknesses start at 5 cm. But they can certainly reach 24 cm. Then it is usually a bivalve wall, which must meet special requirements such as high requirements for fire and sound insulation. On average, however, the thicknesses of the inner walls are 8, 10 or 12 cm (rounded).

Also consider the statics of a building

But not only the mentioned aspects have to be considered. Of course, interior walls are pulled in on all floors. That is, the weight load is increased with each new inner wall. Especially with non-load bearing walls, a lot of weight can be saved here.

Tips & Tricks

The required thickness of an inner wall thus depends on many different factors. Therefore, planning usually also takes on an architect or structural engineer. If you want to move in a new interior wall, which is built in wet construction, this should be clarified with a structural engineer.

Product Image: pramot / Shutterstock

Inner wall - the thickness

FAQ - 💬

❓ What is outer wall thickness?

👉 In India, for house construction of residential/ commercial buildings, a standard thickness of brick wall should be kept around 9″ (230 mm) thick for the outer wall, 4.5 ” (120 mm) thick for the internal partition wall, and 3″ (80 mm) thick for cupboard and railing use.

❓ How do you measure wall thickness?

👉 You would need to subtract the ID from the OD and then divide by two. This number is the wall thickness.

❓ What is thickness of wall in building?

👉 In India, for house construction of residential/ commercial building, standard thickness of brick wall should be kept around 9 inch (230mm) thick for outer wall, 4.5 inch (120mm) thick for internal wall partition and 3 inch (80mm) thick for cupboard and railling purpose.

❓ What is the minimum wall thickness?

👉 Minimum thickness h 4 in. 7.5 in. Only applies to walls designed in accordance with the simplified design method of 11.5.

❓ What is the thickness of slab?

👉 Thickness of concrete slab depends on loads and size of the slab. In general, 6 inch (150mm) slab thickness is considered for residential and commercial buildings with reinforcement details as per design. Methods used for finding slab thickness varies for different types of slabs.

❓ What does wall Thickness mean?

👉 Wall thickness is defined as the distance between one surface of the 3D model and its opposite surface.

❓ What is the formula for thickness?

👉 We obtain the thickness of the solid by dividing its volume by its length and its width; that is, we divide 24 cm3 by 4 cm and 3 cm. In this example, the thickness of the solid is 2 cm.

❓ How many cm thick is a wall?

👉 The width of the framing determines the thickness of the walls. Inner walls are usually constructed with two-by-four studs which make the wall almost 3.5 in (9 cm) thick. Then there is 1 in (2.5 cm) thick drywall on the wall, with 0.5 in (1 cm) drywall on both sides of the wall.

❓ What is required thickness?

👉 The minimum thickness without corrosion allowance for each element of a pressure vessel based on the appropriate design code calculations and code allowable stress that consider pressure, mechanical, and structural loadings.

❓ How thick is a brick wall?

👉 However, the overall thickness of cavity or masonry-bonded hollow walls shall not be less than 8 inches (203 mm), including cavity....2109.4 Thickness of Masonry.

HEIGHT OF WALLSTHICKNESS
8 ft. and under2 in.
Over 8 ft. to 12 ft3 in.
Over 12 ft. to 16 ft4 in.
Over 16 ft. to 20 ft6 in.

❓ What is the thickness of roof?

👉 According to Indian standard rcc concrete roof slab thickness in residential building construction is 4 inches (100mm). Use of 5″ to 6″ (125mm to 150mm) is recommended if the concrete will receive occasional heavy loads.


Video Board: Thickness of Walls | Masonry