Veggtykkelsen er jevn.

It is one long compound noun:

• vegg = wall
• tykkelse = thickness
• veggtykkelse = wall thickness
• veggtykkelsen = the wall thickness

So Norwegian often packs ideas into one word where English uses two or more words.

Because Norwegian usually adds definiteness to the end of the noun instead of putting a separate word in front.

Here, -en at the end of veggtykkelsen means the.

So:

• en veggtykkelse = a wall thickness
• veggtykkelsen = the wall thickness

This is very normal in Norwegian.

Both are possible, but they are structured differently.

• veggtykkelsen = the wall thickness
• veggens tykkelse = the wall’s thickness / the thickness of the wall

The compound veggtykkelse is often the more compact and technical-sounding way to say it. It is especially natural in formal, descriptive, or technical contexts.

Here jevn means even, uniform, or consistent.

So the sentence means that the thickness does not vary much from one place to another.

In other contexts, jevn can also mean things like:

• smooth
• level
• steady
• regular

But in Veggtykkelsen er jevn, the idea is uniform thickness.

Because it agrees with a singular common-gender noun used predicatively.

The subject is veggtykkelsen, and tykkelse is a common-gender noun. After er, the adjective stays in its basic form:

• Tykkelsen er jevn.

Compare:

• En overflate er jevn.
• Et resultat er jevnt.
• Flater er jevne.

So:

• common gender singular: jevn
• neuter singular: jevnt
• plural: jevne

Er is the present tense of å være = to be.

This sentence is simply describing a quality of the wall thickness:

• Veggtykkelsen er jevn. = The wall thickness is uniform.

This is the normal way to link a subject with an adjective in Norwegian, just as in English.

No, this is the basic Norwegian sentence pattern:

• Subject + verb + complement

So:

• Veggtykkelsen = subject
• er = verb
• jevn = adjective complement

This is the standard order in a simple statement.

Yes, that is possible, but it means something slightly different or sounds less compact.

• Veggtykkelsen er jevn = the wall thickness is uniform
• Tykkelsen på veggen er jevn = the thickness on the wall is uniform / the wall’s thickness is uniform

The compound veggtykkelsen is usually the cleaner and more natural choice when you mean wall thickness as a concept.

A more natural alternative than tykkelsen på veggen would often be:

• Tykkelsen på veggen if you literally mean thickness measured on the wall surface in some context
• Veggens tykkelse if you mean the thickness of the wall
• Veggtykkelsen in technical or general descriptive language

Usually yes, or at least to a specific wall thickness already understood from context.

Because it is definite, veggtykkelsen suggests:

• the wall thickness of a particular wall, object, or structure already being discussed, or
• a known wall thickness in a technical description

If you wanted a more general statement, you might use the indefinite form:

• Veggtykkelse bør være jevn. = Wall thickness should be uniform.

A rough guide is:

• veggtykkelsen ≈ VEGG-tük-kel-sen
• er ≈ ær or sometimes a weaker e(r) depending on dialect
• jevn ≈ yevn

A few useful notes:

• v in jevn is often weak or partly swallowed in speech.
• j before e sounds like English y.
• Norwegian y does not exist in standard English; it is a rounded front vowel.

A rough full approximation might be:

VEGG-tük-kel-sen ær yevn

But exact pronunciation varies by dialect.

Yes. It is short, clear, and natural, especially in technical, descriptive, or written contexts.

It sounds like something you might read in:

• engineering
• construction
• product descriptions
• quality control
• measurements

In everyday conversation, people might still say it, but in casual speech they might choose a fuller sentence depending on context.

The dictionary form is veggtykkelse.

That is the indefinite singular form, the form you would usually look up.

Its full set of forms is:

• en veggtykkelse = a wall thickness
• veggtykkelsen = the wall thickness
• veggtykkelser = wall thicknesses
• veggtykkelsene = the wall thicknesses

Not normally.

Flat would usually describe shape or surface form, while jevn here describes consistency or uniformity.

So in this sentence:

• jevn = even / uniform
• not flat

A wall can be jevn in thickness without being flat in shape.