
Vestil Vinyl Dock Seal 8 ft x 9 ft D-350 Series Black
Vestil
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✓ 90 Day Manufacturer Warranty Included
Need an 8x9 Dock Seal with Tight Fit and Durable Compression? Choose the D-350 Series.
The Vestil Vinyl Dock Seal 8 ft x 9 ft D-350 Series offers heavy-duty dock protection for high-use loading zones.
- With 3 thick, foam-filled pads and up to 5" of compression, this seal creates a secure connection between your building and the trailer door.
Available in 10" to 20" projection sizes, it’s designed to fit flush docks or Edge-O-Dock setups.

Install in less than 1 hour.

90 day manufacturer warranty.

Nylon-reinforced 36 oz vinyl ensures a lifetime of safe docking.

Available in projections from 10" to 20".
D-350 Series Seal Combines Reinforced Vinyl Strength with Built-In Air Relief.
- Each seal is made with 36 oz. nylon-reinforced vinyl for superior tear resistance... even better than hypalon.
- Sealed ends stop moisture from penetrating over time, and air tunnels help safely release pressure when a trailer presses against the seal.
You get clean, dry, draft-free sealing for your 8x9 dock opening in all weather conditions.

Vestil D-350 Dock Seal Projections from 10" to 20" for Precise Trailer Fitment.
Whether you need a 10" projection for tight docks or a 20" model for Edge-O-Dock compatibility, the D-350 series has you covered.
- Designed for doors up to 96" wide x 108" high, this system offers max compression without overstuffing your dock entry point.
- Top pad and side pads bevel in to guide trailers in and hold firm under contact.

Installs Fast with the D-350's Pre-Assembled 3-Piece Seal Design.
This model ships as a three-piece system. (two vertical side pads and one top flap)
- Includes a through-the-wall mounting kit and installation instructions.
- Durable wolmanized wood backing, air release tunnels, and reinforced yellow guide stripes make it both functional and long-lasting.

Important Product Specifications.
Projection Options | 10" to 20" |
Max Door Size | 8 ft W x 9 ft H (96"W x 108"H) |
Top Seal Height | 12"H x 120"W |
Side Seal Height | 96 inches |
Side Seal Width (Face/Wall) | 108"H x 10"W (at wall) / 12"W (at face) |
Vinyl Facing Weight | 36 oz Nylon-Reinforced |
Max Compression | 5 inches |
Mounting Kit Included | Yes |
Assembly | Ships preassembled, wall mount required |
Weight | 139 lbs (ships at 218 lbs w/ packaging) |
Warranty | 90 Day Limited Warranty |

What’s Included in the D-350 Dock Seal Package?
- (1) Top Pad with 12" height flap
- (2) Side Pads with 108" height and 10"/12" width
- Wall mounting hardware + through-wall installation kit
- Built-in air release tunnels
- Reinforced vinyl face + yellow guide stripes
Common Questions We Get.
What’s the difference in projections?
Use 10–14" projections for typical flush dock trailers and 16–20" if you’re using Edge-O-Docks or need extra compression room.
Will it seal a standard 8x9 door?
Yes, it's specifically designed for doors up to 96"W x 108"H, which is the exact fit for standard 8x9 dock door openings.
Is it waterproof?
Yes, it uses chemically sealed ends and a tight 3-piece frame to stop water and air leaks.
Can I install it myself?
Absolutely. It ships pre-assembled and includes a complete installation kit, though two people are recommended for setup.