This looks like the DIY heavy-duty (with emphasis on the heavy) version of the Elephant Foot pad
When on soft ground, I always use two wood sections with the grain running perpendicular. Never had one split yet.
2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam
Self restraint is for the young. I'm old and want it NOW!