How to Sand Wooden Trellises for Garden Refinishing (80–220 Grit)

Wooden trellises add charm and support to gardens, but constant exposure to sun and rain causes wear, peeling finishes, and rough textures. Sanding is the first step in preparing trellises for staining, sealing, or painting.

Why Sand Trellises?

Sanding smooths rough areas, removes weathered fibers, and ensures finishes bond properly. It also prevents splinters and enhances the look of garden structures.

Tools You’ll Need

• Sanding sponges for lattice and narrow strips
• Orbital sander for flat frame areas
• Wet/dry sandpaper sheets (80–220 grit)
• Brush or vacuum for dust cleanup
• Mask, goggles, gloves

Recommended Grit Sequence

• 80 grit: Removing peeling paint or weather damage.
• 120 grit: Smoothing after coarse sanding.
• 180 grit: Preparing wood for stain or sealer.
• 220 grit: Final sanding for clean, even surfaces.

Step-by-Step Process

1. Inspect the trellis. Repair loose or broken slats before sanding.
2. Start with 80 grit. Use 80 grit (25-pack) to strip old finishes and rough spots.
3. Refine with 120 grit. Smooth lattice and frames with 120 grit (50-pack) wet/dry sheets.
4. Prep with 180 grit. Sand evenly using 180 grit (50-pack) before finishing.
5. Finish with 220 grit. Lightly sand delicate slats with 220 grit (100-pack) for polished results.
6. Clean thoroughly. Brush or vacuum dust from corners and slats.
7. Apply finish. Use stain, paint, or clear sealer for weather protection.

Special Cases

For thin lattice strips, avoid aggressive sanding—start with 120 grit to prevent breakage. For decorative trellises, hand sanding is often safer than power tools.

Pro Tips

• Sand with the grain for cleaner results.
• Use sponge blocks for reaching tight corners.
• Seal ends of slats to prevent moisture damage.
• Work in dry conditions for proper adhesion.

Aftercare

• Reapply protective coatings every 1–2 years outdoors.
• Clean trellises with mild soap and water to remove buildup.
• Inspect yearly for cracks, peeling, or rot.

FAQs

• Do I need to sand to bare wood? Yes, for staining. For repainting, scuff sanding may be enough.
• Can I sand trellises by hand? Yes—hand sanding is ideal for delicate lattice sections.
• What grit is best before sealing? 180–220 grit ensures smoothness and good absorption.

Watch & Learn

Sanding trellises restores charm and extends their outdoor life. Stock up on coarse sheets, medium grits, and fine sandpapers to complete your trellis refinishing project.