How to Build a Sturdy Trellis for Roses

Determine the size of the frame for the lattice trellis in proportion to the surroundings. Measure two lengths of 2-by-4s for the vertical uprights of the trellis and cut with a circular saw. Also cut two identical lengths for the two horizontals. Measure and cut a wooden lattice panel to size so it fits between the horizontal and vertical lengths of the frame.

Create 1/4-inch-deep notches in the vertical uprights into which you will join the horizontal lengths for the frame. Measure 1 foot upwards from the two vertical uprights and mark each length. Lay both the lengths of wood flat against each other, side by side, with their ends level. Lay a scrap length of 2-by-4 over the mark on the uprights to represent the width of the notch that will join the verticals and horizontals of the frame. Trace the width of the scrap lumber on the uprights. Repeat the procedure for marking the location and width of the scrap lumber 1 foot downward from the tops of the uprights. Also measure and mark downward 1/4-inch along the sides of the markings to serve as a depth guide for the notches.

Make a series of 1/4-inch-deep kerf cuts or incisions between the marks on the uprights using a handsaw to form the notches. Ensure the cuts are spaced close together. Position the edge of a chisel between the cuts to remove remaining wood in between. This practice clears out wood between the markings and helps smooth the notches.

Cut vertical stops from 1-by-1-inch wood strips and drill along the uprights in front and behind the lattice sheet to keep it in place. These vertical stops keep the lattice sheet to the 2-by-4 frame in place instead of sliding along the width. Ensure the four identical strips are identical to the length between the notches on the sides, minus 1 1/2 inches. Set the 1-inch strips on the 2-by-4, positioned 3/4-inches from its edge, and screw along the inside of the frame using 1 5/8-inch screws.

Install the horizontals to the notches on each upright. Ensure each joint is square and flush before joining the lengths of 2-by-4s together with 3-inch screws. Angle the screws where the frame has back-to-back notches.

Spread the frame on the ground with the stops facing down. Lay the lattice panel between the frames so it rests on the stops. Lay the back 1-inch stops on the frame, directly behind the lattice panel, and attach using 1 5/8-inch screws. The front and back stops hold the lattice in place.

Lean the trellis against your house or a fence. Plant roses on the ground in front of it and secure growing tendrils to the lattice with elastic cord to train them to climb the support.