Deze stoel voelt stevig genoeg.

Because stoel is a de-word: de stoel.

In Dutch demonstratives match the noun:

• deze = this with singular de-words, and also these
• dit = this with singular het-words

So:

• deze stoel = this chair
• dit boek = this book

Because deze already works as a determiner, like English this.

You say:

• de stoel = the chair
• deze stoel = this chair

You do not combine them:

• ❌ deze de stoel

This is the same idea as in English: you say this chair, not this the chair.

Voelt is the third-person singular present tense of voelen.

The verb is:

• voelen = to feel

Present tense:

• ik voel
• jij voelt / voel jij
• hij/zij/het voelt

So in Deze stoel voelt stevig genoeg, the subject is deze stoel, which is singular, so Dutch uses voelt.

Because Dutch, like English, can use feel to describe the impression something gives when you touch it or test it.

So:

• Deze stoel voelt stevig genoeg = the chair feels sturdy enough
• Deze stoel is stevig genoeg = the chair is sturdy enough

The difference is nuance:

• voelt suggests a personal impression or physical sense
• is sounds more direct or objective

If you press on the chair or sit on it and judge it by experience, voelt is very natural.

Because voelen does not need to be reflexive here.

In this sentence, voelen is being used like a linking verb, similar to:

• Het klinkt goed = It sounds good
• Het ruikt vreemd = It smells strange
• Deze stoel voelt stevig genoeg = This chair feels sturdy enough

So the chair is not feeling itself. The sentence means that the chair gives a certain impression.

Because stevig is used predicatively, after a verb like zijn, lijken, blijven, or here voelen.

Compare:

• een stevige stoel = a sturdy chair
  Here the adjective comes before the noun, so it usually gets -e.

• de stoel is stevig = the chair is sturdy
  Here the adjective comes after the verb, so it stays in the basic form.

So in:

• Deze stoel voelt stevig genoeg

stevig is correct.

Here stevig means something like:

• sturdy
• solid
• firm

For a chair, sturdy is probably the most natural translation.

Dutch stevig can also be used in other ways depending on context, for example for a handshake, a structure, or even an amount, but here it clearly refers to physical stability.

In Dutch, genoeg usually comes after the adjective or adverb it modifies.

So:

• groot genoeg = big enough
• snel genoeg = fast enough
• stevig genoeg = sturdy enough

That is different from English, where enough also comes after the adjective:

• strong enough
• good enough

So this part lines up nicely with English.

The basic structure is:

Deze stoel | voelt | stevig genoeg

• Deze stoel = subject
• voelt = finite verb
• stevig genoeg = adjective phrase

Dutch main clauses normally follow the V2 rule, meaning the finite verb comes in the second position.

Here the subject comes first, so the verb follows immediately:

• Deze stoel voelt stevig genoeg.

If you changed what comes first, the verb would still stay second:

• Vandaag voelt deze stoel stevig genoeg.

Yes, absolutely.

Both are grammatical, but they are not exactly identical in tone:

• Deze stoel voelt stevig genoeg.
  = It seems sturdy enough based on touch, testing, or impression.

• Deze stoel is stevig genoeg.
  = It is sturdy enough, more as a statement of fact.

So if you're checking whether a chair seems safe to sit on, voelt is often very natural.

Usually:

• deze stoel = this chair
• die stoel = that chair

So deze often refers to something closer, more immediate, or more present in the situation.

In real Dutch, though, the distinction can sometimes be a bit looser than in textbook English, depending on context and speech style.

When genoeg means enough with an adjective or adverb, yes, that is the normal position.

Examples:

• warm genoeg = warm enough
• duidelijk genoeg = clear enough
• snel genoeg = fast enough

But genoeg can also be used differently, for example as a pronoun or determiner:

• Ik heb genoeg. = I have enough.
• We hebben genoeg tijd. = We have enough time.

In your sentence, it is the standard adjective pattern: stevig genoeg.

A rough guide is:

• voelt sounds approximately like foolt, but with the Dutch oe sound and a clear v/f-like start depending on accent

More precisely:

• voe- has the Dutch oe sound, like the vowel in English food
• the final -lt is pronounced clearly

Also, in many Dutch accents, initial v can sound somewhere between English v and f, especially in casual speech.

Yes, very naturally.

You might say it when:

• testing a chair in a shop
• checking whether an old chair is safe
• deciding whether you can sit on it

It sounds normal and idiomatic. A Dutch speaker would easily say:

• Deze stoel voelt stevig genoeg.