Two projects, built in detail
This guide takes two small projects and walks through them slowly: a simple wooden garden gate and a freestanding trellis panel. They share skills (measuring, cutting square, fastening and finishing), so doing the gate first and the trellis second makes sense. For a wider list of ideas, the survey of DIY fence projects compares more options.
Before you buy anything, check local rules and any HOA requirements, and confirm where your property line runs. If you plan to attach anything to a fence shared with a neighbor, ask first. Call utility locating before digging for any new post.
Project 1: A simple garden gate
Plan and measure
Measure the opening between posts at the top, middle and bottom, since it is rarely identical. Plan the gate to be a bit narrower than the smallest measurement, leaving clearance for hinges and the latch. A common allowance is a gap of roughly a half inch at each side, but check your hardware instructions, since it varies. Make sure the posts are firm and plumb before you begin; a gate hung on a loose post will sag.
Materials and tools
- exterior-rated lumber, for two vertical stiles, two horizontal rails and a diagonal brace, plus boards or pickets for the infill if desired
- exterior screws, corrosion-resistant
- two gate hinges sized for the weight and a latch with keeper
- wood glue rated for outdoor use, optional
- stain, sealer or paint
- saw, drill/driver, tape measure, square, level, clamps, pencil
Buy extra lumber for mistakes and pick straight boards by sighting along each one. Treated lumber requires safe handling, so follow the label on cutting and disposal.
Build order
- Cut the frame parts. Cut the two stiles to the gate height and the two rails to fit between them. Seal the cut ends.
- Dry-fit on a flat surface. Lay the frame out on level supports and check that it is square by measuring both diagonals; they should match.
- Assemble the frame. Pre-drill, then screw the rails to the stiles. Clamp first, and check square again after each pair of screws.
- Add the diagonal brace. Place the brace so it runs from the lower corner on the hinge side up to the upper corner on the latch side. Mark the angles, cut and fasten. This puts the brace in compression and helps stop the gate from sagging. Gate bracing explains the principle.
- Add infill. Fasten the boards or pickets, keeping spacing even with a spacer block. Picket spacing explains why a consistent gap looks tidier and lets the boards move.
- Finish before hanging. Apply primer, stain or paint to all surfaces, including edges and bottom. This is much easier when the gate is flat. Let it cure.
Hang the gate
- Prop the gate on spacer blocks at the right height.
- Mark and attach the hinges to the gate, then to the post, checking level.
- Install the latch and keeper, adjusting so the gate closes without force.
- Swing it several times. If it binds, find where it rubs rather than forcing the latch. Gate latch types and gate hinge types explain the hardware choices.
Project 2: A freestanding trellis panel
Plan
A trellis panel can stand in front of a plain fence or hide a utility area. Decide the width and height, and think about wind: an open lattice lets wind through but still catches it, so set it firmly. Lattice toppers covers related ideas.
Materials and tools
- two vertical frame pieces and two horizontal frame pieces
- slats or a ready-made lattice sheet
- two posts or stakes for anchoring
- exterior screws, finish, saw, drill, level, tape measure
Build order
- Cut and assemble the frame. Join the four pieces into a rectangle and check for square.
- Fit the lattice. If using ready-made lattice, trim it to fit inside the frame and fasten it. If building a grid from slats, mark evenly spaced positions, then fix slats with small screws or exterior-rated staples.
- Finish the panel while flat.
- Set the posts. Dig the post holes at proper depth for your frost conditions and soil. Post depth gives an idea of what to consider. Set the posts plumb in gravel or concrete, per the package instructions. Let them cure.
- Attach the panel to the posts, keeping the lower edge slightly above the ground so it does not wick up moisture.
- Plant carefully. Choose climbers suited to the light and the panel’s strength.
Finishing and care
Seal cut ends, re-coat every few years as the finish wears and check screws after the first season. Wood moves with weather, and hardware tends to loosen a little in the first months.
Common mistakes
- skipping the diagonal brace on a gate
- hanging a gate on an unstable post
- using nails or screws that rust and stain
- finishing after assembly, leaving hidden surfaces bare
- digging without checking for buried lines
- building taller than local rules permit
Take your time, and if something is beyond your skill, such as an automatic opener or a structure near a retaining wall, consult a professional.