Calculating BLOB space table size

Is there a simple way to calculate the amount of space a BLOB table is using within my present DBspace? I have been trying to use "oncheck -cT" but I am not exactly clear what I should be looking for. I have the following BLOB table, which contains scanned TIF files of our company bills of lading, sales orders, etc. Table: IMAGES_REC Column name Type Nulls name nchar(30) no data byte yes Row Size 86 Number of Rows 31012 Number of Columns 2 The oncheck gave me this info: TBLspace Flags c02 Row Locking TBLspace contains TBLspace BLOBs TBLspace use 4 bit bit-maps Maximum row size 86 Number of special columns 1 Number of keys 0 Number of extents 155 Current serial value 1 First extent size 8 Next extent size 4096 Number of pages allocated 404560 Number of pages used 401633 Number of data pages 690 Number of rows 31012 Partition partnum 4198261 Partition lockid 4198261 ...and then several extents with varying sizes. Is there no command that you can use that will supply a total amount of bytes that this table is taking up in my dbspace? TIA, Steve