Postsaver +PLUS 40 Year Guarantee
SAV5P
Postsaver+ is a ground-breaking solution tailored for commercial applications, offering a remarkable 40-year guarantee against ground-line decay.
Description
The Postsaver +PLUS sleeve uses an enhanced coating and full-barrier design to block moisture and soil contact, prevent wood rot, and extend post life for wood fence posts and commercial installs.
Key Benefits
-
Long-lasting protection: Designed for decay prevention at the ground level to reduce replacements and extend post life.
-
Contractor-grade durability: Built for heavy-duty jobs and harsh environments common to pole barns and commercial fencing.
-
Enhanced coating system: The coating reduces moisture ingress and wet/dry cycling, two primary drivers of rot.
-
Correct sizing: The sleeve measures 28 inches and leaves 6 inches above ground when installed to isolate the vulnerable zone.
-
Works for new and existing posts: Supports standard installs and retrofit methods for existing posts.
Why Installers Choose Postsaver +Plus
Installers choose Postsaver +PLUS for reliable ground-line protection and simpler maintenance planning.
Pair the sleeve with our wood care products for long-term surface care, and use our fence post puller and wood fence tools to speed installation and retrofit jobs.
When preparing lumber for finishing, you can also consider our stain machine for consistent results and faster turnaround.
Technical Resources
For full installer guidance and specifications, see the official Postsaver® product guidelines. To compare barrier types and pick the best preservative strategy for your project, review the Partial vs Full Barrier Sleeve Comparison.
How Postsaver +PLUS Protects Posts
Postsaver +PLUS combines a proven barrier approach with an enhanced coating system to stop the common causes of ground-line decay.
Below, we explain why rot happens at the ground level, how the Postsaver +PLUS sleeve acts as a post preservative, and point you to the independent field testing that evaluates preservative effectiveness:
Why Posts Rot at Ground Level
Rot concentrates where the post meets the ground because that “critical zone” provides the right mix of moisture, soil biology, and oxygen for decay to start. Constant moisture contact and poor drainage allow fungi and other soil microorganisms to break down wood fibers.
Soil acidity and trapped debris or low airflow can also speed the process, while untreated or improperly treated wood is far more vulnerable to wood rot and structural failure.
Postsaver +Plus Protection Mechanism
Postsaver +PLUS is a contractor-grade post preservative sleeve that creates a physical barrier between wood and soil.
The product page highlights an enhanced coating system and full-coverage sleeve design that together prevent moisture ingress and block direct soil contact—two of the primary triggers for decay.
By isolating the vulnerable ground zone, Postsaver +PLUS reduces the biological activity and wet/dry cycling that enable rot, helping to extend post life and provide long-lasting protection for wooden fence posts and commercial installations.
BRE EN252 Independent Test Results
Postsaver commissioned the Building Research Establishment (BRE) to perform a European Standard EN252 (1989) field test in April 2000 to evaluate the relative effectiveness of wood preservatives in ground contact.
For a full technical read-out, review the BRE EN252 results and product guidelines directly on Postsaver’s test data page.
Installation Guide: How to Install Postsaver +Plus on New and Existing Posts
Here are step-by-step Postsaver +PLUS installation notes to leave 6 inches above ground and prevent ground-line decay:
Tools Needed
-
Measuring tape (to confirm sleeve position and post depth)
-
Gloves and eye protection
-
Shovel or post-hole digger (for new post holes or reglazing around the post)
-
Saw or cutting tool (if trimming the post top is required)
-
Level (to check plumb)
-
Wrench/pliers and basic hand tools (for hardware and adjustments)
Install Postsaver +Plus on New Posts
-
Prepare the post hole or footing per your usual building practice.
-
Measure the post so that when it is set, the Postsaver +PLUS sleeve leaves 6 inches above ground. The Postsaver +PLUS sleeve is 28 inches long and is designed to provide that clearance.
-
Slide Postsaver +PLUS sleeve over the post until 6" remains above ground. This creates a post-preservative barrier at the ground level where rot most often occurs.
-
Set the post (and sleeve) in the hole or concrete as usual, keeping the sleeve positioned so it isolates the ground-contact zone.
-
Backfill and finish the installation, confirming the post is plumb and the sleeve remains correctly positioned to protect the vulnerable zone and help extend post life.
Retrofit Existing Posts With Postsaver +Plus
For posts already in place, there are a few commonly used retrofit approaches, such as:
-
Trimming and re-setting: Involves excavating around the base, trimming the post to allow a full sleeve to be slid on, then re-setting the post and sleeve so the critical zone is isolated.
-
Split / wrap-around sleeves: When the post cannot be removed, a split sleeve or Pro-Wrap style installation can be used to enclose the existing post and create the same ground-level barrier without full extraction.
-
Professional Pro-Wrap installation: For contractors and challenging retrofits, follow the North American Postsaver Pro-Wrap installation for detailed retrofit workflow and best practices.
Explore these additional Fence Armor products and collections to meet your fence installation, protection, and maintenance needs:
Fence Staining Equipment | Post Rot Protector | Fence Post Guard | Post Saver Sleeve | Speed Square | Mr Fence Tools | Semi Transparent Stain | Chain Link Fence Bottom Guard | Stain Stripper | Fence Guard | Mr Fence Protector | Expert Stain and Seal | Fence Post Sleeve | Decorative Fence Post Caps | 4x4 Post Protector | Fence Finials | Framing Jig | Vinyl Fence Rail Removal Tool | 4x4 Deck Post Anchors | Fence Protector | Aluminum Balusters | Mailbox Post Protector | Fence Hangers | EZ Template | Baluster Connectors | Fence Stains
Pro Advice
Why Do Fence Posts Rot at Ground Level?
Warranty
Postsaver +PLUS includes a 40-year rot protection guarantee that covers ground-line decay when installed per guidelines.
Warranty registration and claim procedures are outlined in the guarantee document. Review full terms, exclusions, and installation requirements before purchase to ensure coverage.
Frequently Asked Questions (FAQs)
Here are answers to some of the most commonly asked questions about post-preservatives:
Can I Install Postsaver +Plus on Posts Set In Concrete?
Yes. Postsaver +PLUS can be installed on posts set in concrete. Retrofits typically use excavation and trimming or a split/wrap method so the sleeve can enclose the ground-level zone without removing the entire post.
Will Postsaver +Plus Work on Pressure-Treated Wood?
Yes. Postsaver +PLUS is compatible with pressure-treated wood. It provides an added physical barrier at the ground line, complementing the wood preservative and helping prevent the wet/dry cycling and soil contact that cause decay.
How Many Posts Will One Sleeve Protect?
One Postsaver +PLUS sleeve protects one post. For multiple posts, you must use one sleeve per post. Contact us for contractor or bulk ordering options for large projects.
