A dismantlable portable sawhorse utilizes a bracket plate having a plank aperture and a support aperture that have lengths that are substantially orthogonal to each other and intersect to form a continuous aperture having an intersection space. The plank and support apertures are configured to receive various arrangements of plank lumber and support lumber, respectively. The bracket plate also has a front and back leg cup configured to receive leg lumber therein to lift the bracket plates up from the ground. The sawhorse is formed with two bracket plates configured with at least one of support and plank lumber configured in the respective apertures and extending between the two bracket plates and with leg lumber configured in each of the front and back leg cups of each bracket plate. The bracket plates may lean inward toward each other at a stand angle.