You have just purchased metal garden staples, the most practical fastening tool for installing weed control fabric, agricultural ground cover, or light mulch mats in ornamental gardens, vegetable gardens, and small landscaping projects. They are discreet, quick to install, and sink just enough to hold without compromising aesthetics. In this guide, we explain how to use them correctly.
Product specifications
The metal garden staple is a piece of galvanized steel wire bent into an inverted U-shape. Its two sharp ends penetrate the ground, and the top bar goes through the material to be secured. The 4 × 20 cm dimensions are designed to secure garden materials (fabrics, plastics, mats) in typical soils without the need for an additional cap.
| Specification | 4 × 20 cm Staple |
|---|---|
| SKU | 809575 |
| Width × height | 4 cm × 20 cm (1.6 × 8 in) |
| Material | Galvanized steel |
| Box | 500 staples |
| Application | Weed control fabric, agricultural plastic, mats |
Step-by-step instructions for use
The garden staple is the simplest fastener in our catalog. The key is the correct quantity and spacing between staples: too few and the material lifts; too many and it will have bumps.
Unroll and position the material
Unroll the weed control fabric or plastic over the prepared ground and place it in its final position. Overlap the edges by 10 cm (4 in) between adjacent rolls. Slightly pull taut by hand to remove wrinkles before starting to fasten: a staple placed on wrinkled material will leave bubbles underneath.
Secure the edges and overlaps first
Start by placing staples every 30-40 cm (12-16 in) along the edges of the roll and each joint between rolls. Edges are the most vulnerable area: if wind gets underneath, the pressure will lift the entire sheet. Reinforce corners with double staples placed 5 cm apart.
Secure the interior with a square grid pattern
Distribute staples in an 80 × 80 cm square pattern (approximately 1 staple every 0.6 m²) within the roll. In windy or sloped areas, reduce to 60 × 60 cm (1 staple every 0.4 m²). Place the staple over the material and push both ends perpendicular to the ground by hand until they are halfway driven in.
Finish driving them in with a hammer or foot
Finish driving in each staple by gently tapping the horizontal bar with a rubber hammer or stepping on it with the sole of your safety shoe until the bar is flush with the material, pressing it against the ground. The top bar should not protrude more than 1 cm: if it protrudes, it can cause trips for the gardener or snag tools.
Use stoppers on soft soils
In sandy soils, loose substrates, or recently prepared gardens, the staple may penetrate too deeply, and the top bar sinks below the material, leaving it loose. In this case, use the metal garden staple stopper: a plastic piece that is mounted on the bar before driving it in to limit penetration.
For visible ornamental gardens, install the staples in a straight line following the same geometric pattern throughout the entire area: 1 staple every 60 cm (lengthwise and widthwise), forming a regular grid. Even if they remain visible, a geometric distribution appears intentional and aesthetic; a random distribution looks careless.
Do not use plastic garden stakes when what you need are metal garden staples. Plastic stakes secure light cover blankets and thin materials. Metal staples resist vertical pull and withstand wind forces against large rolls. Using stakes where staples are appropriate means the material will lift with the first gust of wind.
How many staples do you need for your garden?
If you are sizing a landscaping project and are unsure how many staples per m² you need based on garden size, wind exposure, and soil type, ask the virtual assistant. It will provide a quick calculation and suggest if stoppers are advisable.
Complementary products
The staple secures the following common materials in gardens and vegetable patches:
Weed control fabric is the material most frequently secured by staples: in ornamental gardens, flowerbeds, and gravel areas. The metal garden staple stopper is the complementary piece that prevents the staple from sinking too deeply into soft soils. Agricultural ground cover is the other typical application: covering raised beds in professional vegetable gardens, where the staple secures the plastic to the ground.
Maintenance and care
A well-installed galvanized staple requires no maintenance, but it should be stored properly and checked periodically:
- Storage: in its box, in a dry place. Protected from permanent humidity, staples will keep their galvanization intact for years.
- Inspection upon receipt: a box with rusted staples indicates improper storage. Rusted staples can be used, but their lifespan when buried will be reduced.
- Periodic inspection: in gardens where the material has not been covered with gravel or vegetation, check annually and replace any staples removed by excavation or manipulation.
- Buried lifespan: in typical garden soils, a galvanized staple lasts 10-15 years before completely rusting. When it is no longer functional, it usually coincides with the need to replace the weed control fabric.
Frequently asked questions
How many staples per m² do I need?
For weed control fabric in a wind-sheltered garden: 1 staple every 0.6 m² (80×80 cm pattern) in the interior + edges every 30 cm. In a garden exposed to wind or on a slight slope: 1 staple every 0.4 m² (60×60 cm). For agricultural ground cover on raised beds: every 1 m along the bed on each edge. A box of 500 staples covers approximately 200-300 m² of typical garden.
Does it work in sandy or very compacted soil?
In loose sandy soil, the staple penetrates easily but can loosen over time: use staple stoppers or reduce the pattern to 50×50 cm for greater density. In very compacted soil or with surface stones, the staple bounces or bends: pre-make the hole with a small pickaxe or sharpened stick, then insert the staple.
What do I do if the staple bends when I try to drive it in?
A staple that bends instead of penetrating indicates that the tip hit a stone or hard root. Do not insist on the same spot: remove the staple, move 5 cm, and try again. If the entire garden presents this resistance, it indicates that the soil needs prior preparation: shallow tillage with a rototiller to create a loose 10 cm layer where the staple can penetrate.