Is it a System Board, is it a Hangboard? No it's a Modular Board! Train with it however you want - feet on or not, horizontal edges or not, slopers or...
Acorn Climbing, LLC - Creative setup for the dorm. Thanks for sharing @jbleray_ | Facebook
Hangboards – WhiteOak
Jacob Hamman -- How to Make (almost) Anything
Whiteoak Wooden Hangboard for Climbing Training, Modular Fingerboard - Etsy
Upstate Bouldering: Do It Yourself: The UB Hangboard
Deltaboard : a modular and upgradeable hangboard by Delta — Kickstarter