Overview

Most dock shelters handle the top and sides of a trailer. The NOVA GS Gap Sealer goes one step further. Engineered for use with swing-door trailers, the GS Dock Shelter seals the air and light gaps at door hinges while still allowing full access into the trailer. This shelter provides maximum dock protection while minimizing pressure on the building wall. Barron Equipment has over 40 years of experience selling, installing, and maintaining loading dock equipment, and the NOVA GS Series is one of our most purpose-built dock shelter solutions.

Features & Benefits

Foam Side Pads — Built to Take a Hit

The GS shelter has foam side pads that easily bend and compress out of the way of off-center trailers to prevent unit and building damage, and side curtains attach with Velcro® to eliminate dock downtime. No cracked frames. No emergency service calls. When a trailer backs in off-center, the shelter flexes and rebounds.

Pressure-Treated, Kiln-Dried Wood Frame

The frame is made from pressure-treated, kiln-dried wood with foam bonded to the frame using high-strength adhesive. This construction resists moisture-related degradation and keeps the foam side pads firmly in position through years of daily use.

Raked Header with Translucent Fiberglass Top

The raked header with a translucent fiberglass top permits natural light into the dock area, allows water drainage, and face curtains have fiberglass stays for added rigidity. The fiberglass panel also helps support snow loads in cold-climate installations.

Detachable Side Curtains with Velcro

Detachable side curtains and draft pads have Velcro® for easy removal. This makes seasonal ventilation, preventive maintenance, and curtain replacement fast and tool-free.

Wind Straps, Guide Stripes & Heavy-Duty Hardware

Wind straps on the head curtain keep it from being blown out of position. All sew lines are lock-stitched and reinforced with UV-resistant thread. A 15-inch yellow guide stripe is standard.Heavy-duty galvanized mounting hardware and corner wear pleats are also standard.

Widest Size Range in Its Class

The NOVA GS Series Dock Shelter is designed to fit door openings from 8 x 8-feet up to 12 x 12-feet. This is a wider range than most competing models, meaning fewer custom orders and more off-the-shelf fits.

Cover Fabric Options

Available in several top-grade fabric types, weights, and colors, including NOVA MAX-1000™, NOVA MAX-60™, NOVALON™, and vinyl grades in multiple weights. NOVA Technology International warrants all manufactured products to remain free of defects in material and workmanship under normal use for one year from the date of delivery.

Applications

The NOVA GS Gap Sealer is purpose-built for one specific problem: dock openings that service trailers with swing-out rear doors, where standard shelters leave gaps at the hinges. It provides a positive seal between internal and external environments, preventing the passage of dust, insects, exhaust fumes, and other airborne contaminants while the loading dock is in use. Here's where it delivers the most value:

Food & Beverage Distribution — Hinge gaps on swing-door trailers can allow insects, exhaust fumes, and outside air to enter during loading. The rubber gap-sealing hooks close those gaps completely, helping maintain contamination controls at temperature-sensitive docks.
Pharmaceutical & Healthcare Distribution — Product integrity depends on a clean, sealed dock environment. The GS's rubber trim blocks air and light gaps that traditional shelters can't address.
Facilities with Mixed Trailer Fleets — Designed to fit door openings from 8 x 8-feet up to 12 x 12-feet, the GS accommodates a wide range of trailer sizes — including both swing-door trailers and roll-up door trailers — without a custom fit.GS-Series-Dock-Seal-Competitive-Product-Comparison.pdf
Climate-Controlled & Cold Storage Facilities — Every gap at a trailer hinge is a point of heat or cold air loss. The gap sealing hooks minimize those losses, helping protect energy efficiency at temperature-controlled docks.
High-Traffic Docks with Off-Center Approaches — Flexible side pads absorb impacts and foam sides prevent unit and building damage from off-center trailers. The shelter flexes on contact and comes back without service interruption.

Selection Assistance

The NOVA GS Gap Sealer is the right choice when your dock regularly receives trailers with swing-out rear doors and you need to seal the gaps at the hinges — not just the top and sides of the trailer. The GS Dock Shelter provides maximum dock protection while minimizing pressure on the building wall. Options include full-height yellow guide stripes, customizable height and projection, pull rope for head curtain, hook-and-loop splits on head curtain, frame cut-outs for obstructions, common member units, ground-level units, chain-weighted head curtain, and spring steel stays. Barron's team has been installing dock shelters for over 43 years. Contact us to discuss your swing-door trailer situation and we'll help you find the right fit.

FAQs

What does "Gap Sealer" mean in the NOVA GS Series name?

The GS Dock Shelter is engineered for use with swing-door trailers and seals the air and light gaps at door hinges while still allowing full access into the trailer. Standard dock shelters wrap around the top and sides of a trailer but don't address the gap created by swing-out rear door hinges. The GS uses rubber trim specifically designed to close those hinge gaps.

How is the NOVA GS's gap hook different from competitors?

Unlike competitor models that use brittle, hard plastic J-hooks, the NOVA gap-sealing hook is made of durable rubber for flexibility, with an exclusive round nodule that grips onto the trailer and provides a stronger hold. This means the seal stays engaged during the full loading and unloading operation.

What size door openings does the GS Series fit?

The NOVA GS Series Dock Shelter is designed to fit door openings from 8 x 8-feet up to 12 x 12-feet. This is a wider standard size range than most competitor models.

What happens if a truck backs in off-center?

The GS shelter has foam side pads that easily bend and compress out of the way of off-center trailers to prevent unit and building damage, and side curtains attach with Velcro® to eliminate dock downtime. The shelter flexes and comes back without downtime or repairs.

Is the GS Series only for swing-door trailers?

The GS is engineered specifically for swing-door trailers, but it also works at docks that service a mix of trailer types. The flexible side pad structure protects the unit against damage from off-center trailers of all configurations, making it a practical choice wherever hinge gap sealing is a priority alongside standard weather protection.

What is the warranty on the NOVA GS Series?

NOVA Technology International warrants all manufactured products to remain free of defects in material and workmanship under normal use for a period of one year from the date of delivery to the purchaser.

Swing Door Trailer Dock Shelters – GS Series