When an adjective is used in structure “ in length “ as is the case with sentence below, does it change it's meaning ?

We can cut lumbers into 5 meters in longest length .

Or should i say :

We can cut lumbers into minimum of 5 meters in length .

If sentences are wrong ,please correct me .

When an adjective is used in structure “ in length “ as is the case with sentence below, does it change it's meaning ?

We can cut lumbers into 5 meters in longest length .

If this sentence are wrong ,please correct me .

When an adjective is used in structure “ in lenght “ as is the case with sentence below  ,does it change meaning ?

We can cut lumbers into 5 meters in longest lenght .

Or should i say :

We can cut lumbers into minimum of 5 meters in lenght .

If sentences are wrong ,please correct me .

When an adjective is used in structure “ in length “ as is the case with sentence below, does it change it's meaning ?

We can cut lumbers into 5 meters in longest length .

Or should i say :

We can cut lumbers into minimum of 5 meters in length .

If sentences are wrong ,please correct me .