Expansion Joint Filler 10m
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Product Details
Expansion Joint Filler 10m is a flexible foam strip used to fill gaps between concrete or masonry surfaces, allowing for natural expansion and contraction due to temperature changes. This material prevents cracking and structural damage by creating a cushioned barrier that absorbs movement in driveways, patios, and walkways. Typically installed before pouring concrete or inserted into existing joints, it should be positioned slightly below the surface level to allow for a layer of sealant on top for weatherproofing. The 10-metre roll provides ample material for most home projects, making it an essential component for any concrete work that requires movement accommodation.
As of August 2026, PriceNailer data confirms that the cheapest price for Expansion Joint Filler 10m is £12.14 from B&Q across 5 suppliers. Prices have increased by 23.9% over the last 15 months.
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Frequently Asked Questions
What width does Expansion Joint Filler 10m come in?
Expansion joint filler typically comes in widths ranging from 10mm to 25mm, with 20mm being the most common size for residential applications. The depth is usually around 150mm to accommodate various concrete slab thicknesses.
How much area does a 10m roll of expansion joint filler cover?
A 10m roll will cover 10 metres of linear joint length. For a typical driveway or patio project, this is usually sufficient for 30-50 square metres of concrete area, depending on the joint spacing required.
Can expansion joint filler be used in both indoor and outdoor applications?
Yes, expansion joint filler is suitable for both indoor and outdoor use. However, outdoor applications require a weatherproof sealant on top of the filler to protect against moisture infiltration and UV damage.
What's the difference between expansion joint filler and standard foam strips?
Expansion joint filler is specifically designed to handle concrete movement and is made from closed-cell foam that won't absorb water. Standard foam strips may compress permanently and aren't suitable for structural applications where movement needs to be accommodated long-term.
How do I install expansion joint filler in concrete?
Install the filler strip between formwork before pouring concrete, ensuring it sits 10-15mm below the final surface level. For existing joints, clean out debris and insert the filler, then apply a flexible sealant on top for weatherproofing.