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 Spikes, 52 x 4.5 x 3.5 cm, Wall Spikes, Fence Spikes, Bird Spikes, Bird Repellent, Pigeon Repellent, Deterrent for Birds, Cats, Anti Climb Spikes (6, Brown)

KADAX Plastic Spikes, 52 x 4.5 x 3.5 cm, Wall Spikes, Fence Spikes, Bird Spikes, Bird Repellent, Pigeon Repellent, Deterrent for Birds, Cats, Anti Climb Spikes (6, Brown)

Product ID: 226704199

Details

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

⚖️Lightweight yet ultra-rigid design

🌦️UV & weather-resistant polycarbonate

🛡️108 spikes per module for max deterrence

฿5457

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Description

🦅 Keep your space pristine—bird & critter free, effortlessly!

TRIPLE ROW DEFENSE - Two parallel spike rows plus a central barrier block all landing attempts.
INVISIBLE PROTECTION - Available in 4 colors to blend seamlessly with your property’s aesthetic.
ALL SEASON DURABILITY - Crafted from polycarbonate to withstand sun, rain, and impact year-round.
EFFORTLESS INSTALLATION - Mount with glue, screws, or cable ties on any surface—concrete, metal, or wood.
MULTI SPECIES DETERRENT - Effectively keeps away pigeons, cats, squirrels, woodpeckers, and more.

KADAX Plastic Spikes are a high-impact, weatherproof bird and animal deterrent system featuring 108 sharp polycarbonate spikes per 52 cm module. Designed with triple-row spikes for unbeatable coverage, these lightweight yet rigid strips install easily on various surfaces and come in multiple colors to maintain your property’s clean, professional look all year long.

Specifications

ASIN	B081K1VW94
Best Sellers Rank	125,730 in Garden ( See Top 100 in Garden ) 584 in Bird Control
Brand Name	KADAX
Colour	Brown
Customer Reviews	4.3 4.3 out of 5 stars (1,902)
Is Electric	No
Item Type Name	Plastic Bird Spikes
Item Weight	80 Grams
Manufacturer	KADAX
Manufacturer Part Number	K575
Material Type	Plastic
Model Number	K575
Number of Pieces	6
Style Name	Robust
Target Species	Cat, Martens, Pigeon, Seagull, Squirrel, Starlings, Woodpecker
Unit Count	6.0 count

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฿5457

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered 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 Thailand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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