Table 1 (the "long turnaround" end table) prior to reconstruction
This is one big disadvantage of particle board, it sags even when supported and spanning only 2 feet
Another disadvantage is nails get exposed to moisture in particle board and, unless galvanized, they rust. Pulling the nails tears out chunks of the board as if it were rotted.
Old table 1 from different angles after removing the track. Notice all the "divets"
This is table 1's frame, notice the extra strut at one end to try to make the surfaces match.
The new 4x8 surface board in place. A slight mismatch in height was later corrected by adjusting the legs and reclamping the table ends. The 4x8 had been sitting in storage on its edge and had warped a little, so we left it unattached for several days to flaten out.
The finished table with a shorter loop (roadbed only so far in this shot). The shorter loop is necessary to make room for the extended yard leader (third track on right).