Revisamos el mueble de segunda mano de madera maciza.

Revisamos usually means we check, we inspect, or we look over.

In this sentence, it suggests that we checked/inspected the piece of second-hand solid-wood furniture.

The exact English choice depends on context:

• check = general, everyday
• inspect = a bit more careful or formal
• review = possible in some contexts, but less natural here for a physical object

So for a piece of furniture, inspect or check is usually the best fit.

It can be either one.

Revisamos has the same form for:

• present: we check / we inspect
• preterite (simple past): we checked / we inspected

So the sentence can mean either:

• We inspect the second-hand solid-wood piece of furniture
• We inspected the second-hand solid-wood piece of furniture

You need context to know which one is intended.

In Spanish, mueble often means a piece of furniture or an item of furniture.

So:

• el mueble = the piece of furniture / the item of furniture
• los muebles = the pieces of furniture / the furniture items
• el mobiliario = the furniture as a general collective set, but this is more formal or technical

English often uses furniture as an uncountable noun, but Spanish commonly uses mueble as a countable noun.

So el mueble is perfectly normal if you are talking about one specific item.

Because mueble is a masculine singular noun here:

• el mueble

Even though furniture in English is uncountable, Spanish treats mueble as a normal singular noun meaning piece of furniture.

So the article works just like with other nouns:

• el libro
• el coche
• el mueble

De segunda mano means second-hand or used.

It is a very common fixed expression in Spanish, especially for things that have had a previous owner:

• ropa de segunda mano = second-hand clothes
• un coche de segunda mano = a second-hand car
• muebles de segunda mano = second-hand furniture

It does not literally work word-for-word like English grammar. You should learn it as a set phrase.

Because de segunda mano is an established Spanish expression. It is a prepositional phrase, not a simple adjective.

So Spanish says:

• un libro de segunda mano
• una mesa de segunda mano

not normally a one-word adjective equivalent to second-hand.

You may also hear usado/a for used, but it is not always exactly the same in tone:

• de segunda mano = second-hand, previously owned
• usado/a = used, not new

Often they are close in meaning, but de segunda mano is especially common for resale contexts.

Because each de phrase adds different information about el mueble:

• de segunda mano = second-hand
• de madera maciza = made of solid wood

So the structure is basically:

• el mueble
  • de segunda mano
  • de madera maciza

In English, we often stack adjectives before the noun:

• the second-hand solid-wood piece of furniture

But Spanish often adds that information after the noun with phrases like de...

Yes. De madera maciza means made of solid wood.

Breakdown:

• madera = wood
• maciza = solid, dense, not hollow or composite

So madera maciza is the normal Spanish way to say solid wood.

This is a very common phrase when describing furniture quality.

Because maciza agrees with madera, not with mueble.

Here the structure is:

• de madera maciza

Since madera is feminine, the adjective must also be feminine:

• madera maciza

If it were modifying a masculine noun directly, you would use macizo.

Compare:

• una madera maciza
• un bloque macizo

Not with exactly the same meaning.

• el mueble de madera maciza = the piece of furniture is made of solid wood
• el mueble macizo = the furniture item is solid/heavy/compact

Sometimes macizo directly with mueble may sound less precise or may suggest the object is sturdy, bulky, or not hollow. If you specifically want to say made of solid wood, de madera maciza is the clearest and most idiomatic choice.

Because that is very normal in Spanish.

English often puts many modifiers before the noun:

• the second-hand solid-wood piece of furniture

Spanish usually prefers:

• noun first
• then descriptive phrases after it

So:

• el mueble de segunda mano de madera maciza

This sounds much more natural in Spanish than trying to pack everything before the noun.

Yes, it often can, depending on what you want to emphasize.

For example:

• el mueble de segunda mano de madera maciza
• el mueble de madera maciza de segunda mano

Both are understandable.

A slight difference is in focus:

• de segunda mano first: emphasizes that it is second-hand
• de madera maciza first: emphasizes the material first

Neither is wrong in many contexts, but the sentence you have is completely natural.

Because el mueble is a thing, not a person.

Spanish uses the personal a mainly with specific people (and sometimes pets or personified beings):

• Vemos a María
• Escuchamos al profesor

But with objects, there is normally no a:

• Revisamos el mueble
• Compramos la mesa

So Revisamos el mueble is exactly what you would expect.

It would be:

Revisamos los muebles de segunda mano de madera maciza.

That means:

We checked the second-hand solid-wood pieces of furniture
or
We checked the second-hand solid-wood furniture items.

Changes:

• el mueble → los muebles
• the phrases de segunda mano and de madera maciza stay the same in form here

A simple pronunciation guide is:

reh-bee-SAH-mos el MWEH-bleh deh seh-GOON-dah MAH-noh deh mah-DEH-rah mah-SEE-thah

In much of Spain, c before e/i and z are pronounced like the th in think, so maciza sounds like mah-SEE-tha.

A few useful pronunciation notes:

• revisamos stresses sa: re-vi-SA-mos
• mueble begins with mw: mweh-ble
• segunda has a hard g sound because it comes before u
• maciza in Spain is typically ma-CEE-tha

It is natural, especially in contexts like shopping, descriptions, catalogues, inspections, or conversations about furniture.

Spanish is comfortable with noun + descriptive phrases:

• el mueble
• de segunda mano
• de madera maciza

So the sentence is grammatically fine and natural. In real speech, a speaker might also split it up if they want to make it easier to process, for example:

• Revisamos el mueble. Era de segunda mano y de madera maciza.

But the original sentence is perfectly good Spanish.