This chamber, which measures 2.90m across (east-west) by 6.10m in length, is entered from chamber I via the doorway located in the south wall and from chamber III via one at the south end of the west wall, see the mastaba plan opposite.
The walls of the chamber are preserved at the southern end to a height of between 2.70 and 2.80m, and at the north end to only 1.00m. The surfaces are dressed but neither smoothed and nor decorated.

In the north-west corner is the very large shaft leading to Nikauisesi's burial chamber (this is discussed fully on page 8). Unlike the shaft in chamber III, this one is not covered by stone slabs but a large metal grill. The surrounding protective structure takes up a large portion of the space at the northern end of the chamber (see the ). The north view also shows the current state of that end of the chamber.

This is entered at the east end of the north wall of chamber I.
The recess for this doorway is located at the southern end, on the chamber I side. This recess measures 1.12m wide, 2.25m high and 0.20m deep. The east thickness is actually part of the east wall of chamber I, so the description of its decoration was dealt with the other part of that wall (however, see the ). The other thickness was not decorated. A hole was cut into the east end of the recess ceiling for a door pivot and evidence exists in the floor for a bottom one. There are no bolt holes in the side walls.
The actual passageway measures 0.75m wide, 2.10m high and 0.80m long. The decoration on both thicknesses was left in an unfinished state, which is rather surprising, considering the limited amount of work necessary for the completion and the doorway's close proximity to the entrance of the chapel. As this doorway leads into room V in which the mouth of the tomb owner's shaft is located, it is possible that the decoration on the door thicknesses was deliberately left unfinished, perhaps for superstitious reasons aimed at delaying the day of death.
Currently there are no colour photographs for these two walls, only the monochrome images, seen below, are available.

On this left hand wall, the tomb owner is shown facing inwards into chamber V and leaning on his staff. His forward leg is bent but both feet are placed flat on the ground rather than one being raised onto its toes. It has been suggested by Yvonne Harpur that this posture was preferred when the figure of the deceased was included in scenes of his journey to the west. Nikauisesi wears a collar, bracelets, a sash, a short, projecting kilt, a panther's skin and apparently no sandals on his feet.
The figure of Nikuisesi is all that remains on this wall, no inscriptions have survived. The figure is only partly carved and coloured, suggesting that the carving was deliberately abandoned before any other colouring proceeded.

Unlike all of the other doorway thicknesses, the poorly preserved decoration of this side has been produced in paint only. However, it does contain a descriptive text. The scene is divided into two registers, but unlike that on the opposite wall, the figures here face outwards, towards chamber I.
In the bottom register are four offering bearers carrying various food items. The first is described as "The overseer of the linen, the ka-servant, Neferwednet", the second as "The ka-servant, Ni…ptah", the third as "The ka-servant…" and the fourth as "Imi".
In the upper register can be observed three men. At the front (nearest to chamber I) is a standing figure, who wears a pointed kilt and supports a box on his left shoulder. Behind him sit two other men, the first of whom appears to be manufacturing an object similar to one carried by the standing figure. The third man stretches either fabric or rope between his feet and his hands. In this register the inscriptions are too fragmentary to he read with confidence. However, the first man is "The overseer…", the second is "The ka-servant" and the third is probably named "Sabuptah". This last man's name is not found elsewhere in the complex.

The entry to this doorway is located in the east wall of chamber III, partially intruding on the deep recess defining the entry from chamber II. It is only 0.60m wide, 1.75m high with a length of 1.05m. The threshold is raised by 0.15m above the floor levels on either side (see the ). This doorway represents an alteration to the original design of the chapel as it cuts through the decoration of the east wall of chamber III. Although the thicknesses of this doorway were not finely smoothed nor decorated with scenes and inscriptions, they did however received a painted dado and colour bands, identical to and at the same height as that on the main east wall of chamber III (see and is more obvious in the south wall) and not lowered like those of the entry to chamber IV. This would have provided very little space in height for any pictorial decoration and none appears to have been produced.

As already mentioned, this chamber is built from stone blocks and has no decoration on its walls, thus these block can be seen individually.

In the south wall, which as can be seen to be totally unsmoothed and with no plaster coating (see ), is a small hole, like the ones found elsewhere in this complex. It is located 10cm above the floor and 4cm from the east corner of the entry from chamber I, cutting through to the west door thickness.

In the west wall, to the right of the doorway to chamber III, at a height of 56cm. from the floor, are two more small holes, positioned 5cm. apart. These are cut at an angle to join within the same wall (see ). Thus, this last of the six is positioned differently to the others.

As can be seen in the image (above left), at the northern end of the chamber, both the east and west wall have survived to a much lower height than those at the southern end, with the rear wall now consisting only of the bottom two rows of blocks.

Directly north of chamber V is a serdab (see the mastaba plan at the top of this page), with dimensions of 3.65m east-west by 1.05m north-south. The roofing has not survived and the upper courses of the walls are lost, but these presumably had the same height of 3.15m as all other chambers of the mastaba. There is no direct access to the serdab and, as the walls between the serdab and chamber V have been restored above a height of 1.00-1.50m, no evidence survives of any viewing slit. If one had existed it would have been placed above this surviving height. Normally, a slit in the wall of an adjoining chamber was provided in order to view a statue of the deceased, which would have been placed in the serdab (see for example, in Ty's mastaba, also at Saqqara, where the wall was fully decorated). A full description of is also available on this site
The serdab is undecorated, its walls roughly smoothed with a few traces of plaster but there is no evidence that decoration was ever planned.