The phrase "a narrow entry" is correct and usable in written English.
It can be used to describe a physical space that is limited in width, such as a doorway or passageway.
Example: "The old castle had a narrow entry that made it difficult for large groups to pass through at once."
Alternatives: "a tight entrance" or "a slim access point".
Two steps to a narrow entry.
WHEELCHAIR ACCESS -- Several steps to a narrow entry.
A few days later, loitering around the gates of the Harouni estate again, Rezak decided to go in, stepping through a narrow entry set into the wall.
A narrow entry path leads to a small irregular courtyard that binds the structures into a coherent assembly; the upper-level residence has become a partial hexagon.
There was a fresh harvest of beans drying out front, and from where we sat, in a narrow entry parlor, a doorway led into the kitchen and a further doorway opened into a cowshed where a single heifer stood munching cud.
The probability that it could simultaneously change its symmetry from 7-fold to six-fold, evolve a narrow entry channel, and evolve an ability to bind an ATPase ring in the short time before the mutant strain was rapidly eliminated by such adverse selection is negligible.
"It would obstruct the most iconic view of the structure," the organization added, "and it would adversely alter the experience of entering the building," in particular the "celebrated sequence from open exterior space through a narrowed entry area into an expansive rotunda".
Huge fireplaces and narrow entry porch.
WHEELCHAIR ACCESS: Narrow entry and steps; restrooms very small.
Thousands of their fans were grouped all around, in the bars, or the narrow entry ways into the ground.
Families and lawyers of the Abu Zaabal victims packed together in the morgue's narrow entry, pounding on the metal gate to the examining rooms.
