Specifications include, but are not limited to: a. Small Liner – 57.9" long x 20.1" wide x 18.1" high b. Medium Liner – 85.8" long x 29.9" wide x 24" high c. Oversize Liner – 90.2" long x 31.9" wide x 26" high d. Extra Large Liner – 92.1" long x 35.8" wide x 28" high 2.6.6 In addition to the four (4) sizes indicated, the contractor shall provide any other sizes available on an as needed, if needed basis as requested by the state agency. 2.6.7 The grave liners shall be of equal internal dimensions at the top and bottom to accommodate newer caskets such as Aurora caskets. 2.6.8 All concrete grave liners provided by the contractor must be free from defects which detract from its appearance or impair its serviceability. 2.6.9 All concrete grave liners provided by the contractor must be designed for a maximum burial of 2.13 m. from the bottom of the liner with minimum soil cover of 46 cm.