Scissor Truss Porch . Supply to the market great quality roof. A steeper bottom chord pitch can be accomplished with. scissor truss design porch beach style with traditional trellises brown from madebymood.com To support the roof over a porch without using posts, designers sometimes. Houzz has millions of beautiful photos from the world’s top designers, giving you the best design ideas for your dream remodel or simple room refresh. Because these trusses exert no thrusting force on the walls, horizontal restraints, such as exposed beams or cables, are not necessary.