POSTSAVER Pro-Wrap Large fence post protector — Pack of 10, dual-layer heat-shrink for 5x5–6x6 & 6–7 in posts, 20-year guarantee

Postsaver Pro-Wrap Large is a heat-shrink, dual-layer sleeve that seals wooden fence posts at ground level to block moisture, oxygen and fungi and extend post life up to 20 years.

Built for timber posts that sit in soil, gravel or concrete, this pack of ten heavy-duty Pro-Wraps from POSTSAVER creates an airtight, water-tight barrier around the most vulnerable part of the post—the ground-line junction. Independently tested and widely used in fencing applications, the wrap is sized to fit most common large posts and installs quickly with simple heating tools. The result is dramatically reduced rot risk and a longer service life for new or replacement posts.

How does the Pro-Wrap protect posts from rot?

The Pro-Wrap uses a dual-layer construction that shrinks tightly to the timber when heated, forming a sealed barrier that prevents moisture and oxygen from penetrating the post surface. By removing the environmental causes of decay, the wrap halts fungi growth and significantly slows deterioration.

• Dual-barrier polyethylene and proprietary inner layer lock out water and oxygen
• Heat-shrink application produces a seamless, long-lasting seal
• Proven in independent AWPA and BRE testing for extended durability

Which post sizes and installations does this pack fit?

This large Pro-Wrap size accommodates square posts from 5 x 5" up to 6 x 6" and round posts from 6" to 7" diameter, making it suitable for most standard fence and deck posts. It works with timber posts set directly in soil or secured with concrete, offering flexibility for new builds and repairs.

• Fits 5x5" and 6x6" square posts and 6"–7" round posts
• Compatible with UC4 pressure-treated posts when installed correctly
• Can be used before setting posts in concrete or after installing in-ground

What tools and steps are needed for installation?

Installation is straightforward: wrap the sleeve around the post at the ground line, apply controlled heat with a hot-air gun or gas torch, and shape the material until it forms a tight, uniform seal. Clear instructions are included with the pack, and a single installer can complete most posts in minutes.

• Tools required: hot air gun or propane blowtorch and a roller for smoothing
• Typical installation time: a few minutes per post once familiar
• Works on new or cut posts; ideal immediately after setting or trimming

What guarantee and performance can I expect?

POSTSAVER backs the Pro-Wrap with a 20-year post replacement guarantee when applied to UC4 timber posts according to instructions. The product’s long track record—over ten million sold—and independent lab testing support its ability to extend post service life and reduce maintenance needs.

• 20-year replacement guarantee for correctly installed UC4 posts
• Proven performance in BRE and AWPA testing
• Designed and refined over decades by the Postsaver brand

Who is this for: The Postsaver Pro-Wrap Large (pack of 10) is intended for DIYers, professional fence contractors, and property managers who want a durable, low-maintenance solution to prevent post rot on large timber posts. It's especially useful for new fence installs, post replacements, or any setting where posts meet soil or concrete and long-term performance matters. If you need a proven way to protect fence posts from ground-level decay and reduce future repairs, this Pro-Wrap size offers a practical, industry-tested option.