1/4" Bollard Covers (Heavy-Duty HDPE Post Sleeves)
Upgrade the look and protection of your safety posts with our 1/4" bollard covers. Built from thick, high-density polyethylene (HDPE), these exterior-grade bollard post sleeves are designed for high-traffic environments like warehouses, retail storefronts, loading zones, parking lots, and distribution centers. The extra-tough 1/4-inch wall construction delivers long-term impact protection and a clean, bright finish that helps reduce repainting and ongoing maintenance.
Choose from multiple diameters and standard heights to fit most steel bollard pipes. Need a specific height for your job site? We can cut covers to your required length for a precise fit.
Features and specs
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1/4" thick HDPE polyethylene for maximum durability
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Fits common pipe sizes from 3" to 12" nominal pipe size (a standard 6" pipe measures about 6-5/8" outside and takes the 6 cover)
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Standard heights available up to 84" (varies by diameter)
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Custom height cut option available
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Includes securing tape strips for reliable installation
Made in the USA by Ideal Shield
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Low-maintenance finish that helps eliminate frequent repainting
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Weather-resistant and built to handle outdoor exposure without rusting, cracking, chipping, or fading
Bollard cover colors
Twelve colors: Red, Yellow, Lime Green, Black, Dark Blue, Light Blue, Gray, Light Gray, Forest Green, Brown, Urban Bronze and Orange. Pick the color and size at the top of this page.
- Yellow bollard covers are the common choice for caution marking: OSHA 1910.144 names yellow as the color for marking physical hazards.
- Red, Orange, Dark Blue, Light Blue, Forest Green and Lime Green for high-visibility or brand color schemes.
- Black, Gray, Light Gray, Brown and Urban Bronze for a neutral finish.
Custom colors and decals are quoted on request: request a quote.
Bollard cover sizes
For most sizes, the cover size is not the pipe's measured diameter. Measure the outside of the pipe (OD), or the distance around it, and read the cover size from the table. A standard 6" pipe measures about 6-5/8" outside and takes the 6 cover. Variant codes read size, height and the suffix S: 4-52-S is the 4 cover at 52" tall.
| Cover size | Pipe OD | Around pipe | Heights |
|---|---|---|---|
| 3 | 3-1/2" | 11" | 60" |
| 3.5 | 4" | 12-1/2" | 52", 68" |
| 4 | 4-1/2" | 14" to 15" | 52", 60" |
| 5.5 | 5-1/2" | 17-1/2" | 52", 60" |
| 6 | 6-5/8" | 20-1/2" to 21-1/2" | 52", 65", 84" |
| 7 | 7-1/2" | 24" | 56" |
| 8 | 8-5/8" | 27" to 27-1/2" | 52", 58", 69" |
| 10 | 10-3/4" | 34" to 34-1/2" | 69" |
| 12 | 12-3/4" | 37-5/8" | 60" |
Any size can be cut to a custom height. Step-by-step: Bollard Cover Sizing Guide. Manufacturer chart: Ideal Shield 1/4" bollard cover size sheet (PDF).
Bollard cover FAQ
How do I find the right cover size?
Use the size finder at the top of this page: choose whether you measured around the pipe or straight across it, type the number, and it names the cover. By hand, divide the circumference by 3.14. A 21" circumference is a 6.7" pipe, which takes the 6 cover. The table above gives every pairing.
Why is the cover size smaller than my pipe measurement?
For most sizes, the cover size follows the steel pipe's name, which is smaller than the pipe's measured outside diameter. A 4" nominal pipe measures 4-1/2" outside and takes the 4 cover; the table above gives every pairing.
How are the covers installed?
Slide the cover over the post. Securing tape strips are included.
Will they need painting?
The 1/4" exterior-grade HDPE is built for outdoor exposure without rusting, cracking, chipping or fading, so the finish helps reduce repainting.
My pipe measures between two sizes. Which do I order?
The size finder says so when that happens. Send us the measurement before ordering and we will confirm the cover.
See also: all bollard covers and column wraps and How to Measure for a Bollard Cover.