The first plan الخطة الأولى
The enterance leads to the descending corridor measure 120 M long .
Runs first through the core of the pyramid and then through the natural rock ,it leads to the first burial chamber , this chamber was cut in the natural rock and never finished .
- Its walls and floor are rough condition.
3- There is a blind passage cut in the south wall in this chamber .
The purpose of this blind passage would have been connect this chamber with another one .
Similar to the 2 chambers under the northern pyramid at Dahshur.
But this plan was changed.
The second plan الخطة التانية
- was to build the burial chamber inside the pyramid itself.
- A hole was cut in the roof of the descending corridor to distance of 18 m from the enterance.
- An descending corridor was upwards through the core of the pyramid measure 36 m long leads to a horizontal corridor measure 35 m long and 1.75 m high .
Queens chamber
4- which leads to a chamber in correctly called the queens chamber .
Because there is no evidence that the queens were ever buried within the pyramids of the kings during the old kingdom.
5- It is built entirely limestone and measures 5.2 m * 5.1 m
The roof 6.13 m High
6- The pavement of the chamber seems never to have been laid .
7- on East side of the chamber is a large recess the purpose which is uncertain and may be intended to contain a statue of the king.
8- Blind shafts were cut in the north and the south walls of the chamber.
They runs for a distance 6.6 feet through the core of the pyramid.
9- Some Egyptologists think that these 2 shafts were ventilation shafts , but had some religious significance.