Hay más folios sobre la mesa de los que necesito, así que te doy la mitad.

There are more sheets of paper on the table than I need, so I’ll give you half.

Breakdown of Hay más folios sobre la mesa de los que necesito, así que te doy la mitad.

• yo: I
• te: you
• la mesa: the table
• necesitar: to need

Questions & Answers about Hay más folios sobre la mesa de los que necesito, así que te doy la mitad.

Why does the sentence start with hay instead of están?

Because hay is the usual way to say that something exists / there is / there are somewhere.

• Hay más folios sobre la mesa... = There are more sheets of paper on the table...

Spanish normally uses:

• hay to introduce the existence of something
• estar to say where something specific is

So:

• Hay folios sobre la mesa = There are some sheets of paper on the table.
• Los folios están sobre la mesa = The sheets of paper are on the table.

In your sentence, the speaker is introducing the existence of extra sheets, so hay is the natural choice.

What does folios mean here? Why not papeles or hojas?

In Spain, folio often means a sheet of paper, especially a plain sheet used for writing or printing.

A rough comparison:

• folio = sheet of paper
• hoja = sheet / leaf, more general
• papel / papeles = paper / papers, also more general

In Spain, folio is very common in everyday speech for loose sheets of paper. A learner from Latin American Spanish may hear hojas more often in similar contexts.

How does más folios ... de los que necesito work?