Learn Turkish: Benim kurmam gereken beşik şurada duruyor. - The crib I must assemble stands right there.

This is a relative clause of necessity. It uses the verbal noun form of the verb (kurma meaning 'assembling') plus a possessive suffix (-m for 'my'), followed by gereken ('which is necessary'). So, kurmam gereken beşik literally translates to 'the crib which my assembling is necessary,' meaning 'the crib I must assemble.'

Is the word Benim strictly necessary here since kurmam already means 'my assembling'?

No, it is optional. Just like with standard possession, the genitive pronoun Benim is used here for emphasis or clarity. Including it stresses that it is the crib I have to assemble, perhaps contrasting with a task someone else has to do.

I usually see kurmak translated as 'to establish' or 'to set.' Does it specifically mean 'to assemble' here?

Yes, kurmak is a highly versatile verb. When talking about furniture, toys, or tents, it means 'to assemble' or 'to put together.' You will also see it used for setting an alarm clock (saat kurmak), founding a business (şirket kurmak), or even daydreaming (hayal kurmak).

Why use şurada instead of orada for 'there'?

While orada is a general 'there,' şurada specifically means 'right there' or 'just over there.' It indicates a place that is slightly closer or currently within sight, suggesting the speaker is likely pointing at the crib as they speak.