in length, in width, and probably in height. It was oriented almost east to west, and as with four other Medway Megaliths, it appears to have been facing toward either the Medway Valley or the North Downs. It is probable that the chamber's entrance was almost entirely blocked by a large stone. While it is difficult to determine the chamber's precise original layout due to damage caused in the medieval period, it is probable that a medial stone divided the chamber in two. A dry stone wall across the west end of the chamber would have also blocked access. Alexander suggested that the earthen mound was constructed before the chamber, and that it was used as a ramp on which to drag the large stones into position. He suggested that the long barrow's builders kept the megaliths in place by filling the chamber with sand. Once the capstone was placed atop and the chamber was stable, he thought, the builders would have removed the supporting sand. In 1950, it was stated that 14 stones survived, however full excavation revealed that 18 large sarsen boulders were extant, alongside four smaller sarsen stones used in the dry stone wall and pavement of the tomb. The chamber had a pavement set in yellow sand, onto which human remains were placed. These human remains were evidenced by the discovery of 3,500 pieces of bone, reflecting a minimum of nine or ten individuals, at least one of whom was a child. Some of these burials were inhumed, and others were cremated, while the earlier bones were deposited alongside Windmill Hill pottery. Little evidence of inhumed burials was found, in part because they did not survive well in the acidic soils surrounding the site. The appearance of cremated human bone here is unusual; although evidence of cremation has been found at some other long barrows, generally it is rare in Early Neolithic Britain. Ashbee suggested that for this reason, the inclusion of cremated bone here must have had "especial significance". While acknowledging that there was evidence of Early Neolithic cremation at certain sites in Britain, the archaeologists Martin Smith and Megan Brickley suggested that the cremated bone was added later, during the Late Neolithic, when cremation was more common. Along with the human remains were found items probably interred with the dead, such as 34 sherds of ceramic, three stone arrow heads, and a clay pendant.