To provide a leg of a trestle or the like which improves the grounding stability of a nonslip member even when it is used on a slope or a rugged face.

The leg of a trestle or the like formed on the upper face of a nonslip member 7 is provided with a recessed fitting part 72 with a spherical shape at the inside face, a spherically protruded fitting part 78 formed at the lower end of a lower leg member 4 and fitted in the recessed fitting part 72, and a support shaft 83 inserted in an insertion hole 82 formed in the protruded fitting part 78 and fitted in a fitting hole 79 of the support shaft end, formed in the recessed fitting part 72, at both ends thereof. The insertion hole 82 for the support shaft is formed so as to vertically expand from the central part of the length to respective ends. And an elastic member 84 urging the protruded fitting part 78 upward and reducing the friction force between the outer peripheral face of the protruded fitting part 78 and the bottom face of the recessed fitting part 72, is fitted in a recess 81 formed at the bottom face of the recessed fitting part 72.