Is this suitable for stoping small birds

yes it seems to stop pidgeons and pretty much everything from landing on the pergola

What's the gap between spikes for cable ties?

The gap between the base of the spikes is about 6mm. Much easier to use cable ties as although their are holes for screws that method is painful unless you use a magnetic screwdriver!!

Would decking screws be suitable for attaching the spikes to the top of a pergola and if so, what size screw would be best?

You don't need anything like a decking screw to fix these to timber etc. I used zinc plated self-tapping pozi pan head screws, size 6 x half inch, or 3.5mm x 13mm in metric. The fixing holes in the spikes are pre drilled for a number 6 or 3.5mm screw. As an alternative to zinc plated your could use brass if you wanted extract corrosion protection.

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KADAX Plastic Bird Spikes, 51 x 4 x 3 cm, Wall Spikes, Fence Tops Spikes, Pigeon Repellent, Deterrent for Birds, Cats, Anti Climb Spikes, Squirrel Repellent (6, Anthracite)

KADAX Plastic Bird Spikes, 51 x 4 x 3 cm, Wall Spikes, Fence Tops Spikes, Pigeon Repellent, Deterrent for Birds, Cats, Anti Climb Spikes, Squirrel Repellent (6, Anthracite)

Product ID: 226704199

Details

Brand
KADAX
Colour
Anthracite
Is electric
No
Item weight
80 Grams
Material
Plastic
Number of pieces
6

📏52 cm length for broad coverage

🦅108 spikes per module for max deterrence

🌦️UV & weather resistant polycarbonate

$120.85

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Description

🛡️ Defend your space with sleek, silent spikes—because your property deserves VIP protection!

TRIPLE ROW DEFENSE - Two parallel rows plus a central spike row block all landing spots—no bird gets through!
VERSATILE SURFACE FIT - Easily mounts on wood, metal, concrete with glue, screws, or cable ties—customize your protection hassle-free.
ALL WEATHER DURABILITY - Crafted from high-rigidity polycarbonate, these spikes withstand sun, rain, and impact season after season.
INVISIBLE YET EFFECTIVE - Available in four subtle colors to blend seamlessly with your property’s aesthetic while keeping pests away.
MULTI SPECIES DETERRENT - Protects against pigeons, seagulls, woodpeckers, cats, martens, squirrels, and starlings—complete peace of mind.

KADAX Plastic Spikes are a 52 cm long, triple-row bird and animal deterrent made from durable, UV-resistant polycarbonate. Each module features 108 spikes designed to prevent landing and nesting on various surfaces including windowsills, railings, and roofs. Easy to install and available in multiple colors, these spikes offer robust, all-season protection against pigeons, seagulls, woodpeckers, cats, and more, ensuring your property stays clean and damage-free.

Specifications

ASIN	B0BSFKZKKN
Best Sellers Rank	129,111 in Garden ( See Top 100 in Garden ) 595 in Bird Control
Brand Name	KADAX
Colour	Anthracite
Customer Reviews	4.2 4.2 out of 5 stars (1,908)
Is Electric	No
Item Type Name	Plastic Bird Spikes
Item Weight	80 Grams
Manufacturer	KADAX
Material Type	Plastic
Number of Pieces	6
Style Name	Classic
Target Species	Cat, Martens, Pigeon, Seagull, Squirrel, Starlings, Woodpecker
Unit Count	6.0 count

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$120.85

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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