Extruded decking having cooling feature

A deck comprising:

• a base including a plurality of horizontally situated supporting members and a plurality of planks fixed to the supporting members defining a surface of the deck, each of the planks comprising:
• an extruded metal unit including:
• a horizontal element having an upper surface, a lower surface, and two parallel edges defining outer boundaries of the upper surface,
• a plurality of supporting elements depending from the lower surface each of the plurality of supporting elements including a horizontal projection at a lower end of each element for supporting the plank with respect to the supporting members, and
• a plurality of additional elements depending from the lower surface for maximizing the area of the lower surface to enhance heat transfer from the plank to the surrounding environment,
• two of the plurality of supporting elements of each plank depending from the lower surface being contiguous to the two parallel edges, and a pair of additional supporting elements being situated between the supporting elements depending from the two parallel edges, the horizontal projections at a lower end of each additional supporting element being directed toward each other to form a throat;
• and
• a T-shaped anchor member including a head and a stem, the head being engaged in the throat with the stem extending downwardly therefrom adjacent to said supporting member, and means coupling the anchor member to the supporting member, to fix the horizontal projections at a lower end of each additional supporting element to said supporting members, the stem of the T-shaped anchor member including an inclined foot at a lower end thereof, the foot engaging a shoulder on the supporting member for biasing the plank downwardly against the supporting member.