Holman ProStow Van Shelving

Holman ProStow is a commercial-grade van shelving system built specifically for Milwaukee Packout compatibility. Instead of stacking cases on the floor or bungee-strapping loose gear, ProStow gives you organized, slide-out access to every Packout box in your van — on the way to the job, at the job, and on the way back. It's modular, expandable, and built to the same durability standards fleet operators have expected from Holman for decades.

Choose Your ProStow Configuration

ProStow is available in three bank widths, two shelf count options, and two shelf types. Every combination ships as a complete, ready-to-install unit. Here's how to think through the right build for your van:

Step 1: Choose Your Bank Width

Bank width determines how many columns of Packout storage you're building. All three options use the same upright and shelf system — so you can expand later by adding uprights and shelves rather than replacing the whole unit.

• Single Bank — One column of Packout storage. Two uprights included. Best for vans where cargo space is shared with other equipment or a van partition.
• Double Bank — Two columns of Packout storage. Three uprights included. The most common configuration for tradespeople running a full Packout system.
• Triple Bank — Three columns of Packout storage. Four uprights included. Maximizes storage capacity along a full van sidewall for high-volume builds.

Step 2: Choose Your Shelf Count

Shelf count is driven by your van's interior roof height. Holman offers two options:

• 4-Shelf — Recommended for low and mid roof vans. Optimizes the available vertical space without wasting it.
• 6-Shelf — Recommended for high roof walk-in vans (Ford Transit High Roof, Sprinter High Roof, ProMaster High Roof). Takes full advantage of the extra vertical space these vans offer.

Not sure which roof height you have? Ford Transit, Mercedes-Benz Sprinter, and RAM ProMaster all offer walk-in high roof variants — if you can stand upright in your van without ducking, the 6-shelf configuration is likely the right call.

Step 3: Choose Your Shelf Type

• Sliding Shelves — Each shelf extends outward for direct access to your Packout cases. Shelves lock your gear in place while driving without extra latch mechanisms. Tension-built shelf retention reduces rattle on the road. The recommended choice for most tradespeople running a daily Packout workflow.
• Fixed Shelves — Stationary shelves at adjustable height positions. Lower profile, lower cost, and well-suited for applications where slide-out access isn't required — parts storage, supply stock, or secondary storage alongside a sliding configuration.

Van Compatibility

ProStow installs in all standard commercial cargo vans. The system is particularly well-suited for walk-in height vans where the 6-shelf configuration delivers maximum storage density:

• Ford Transit (Low, Medium, and High Roof) — High Roof recommended for 6-shelf builds
• Mercedes-Benz Sprinter (Standard and High Roof) — High Roof recommended for 6-shelf builds
• RAM ProMaster (Standard and High Roof) — High Roof recommended for 6-shelf builds
• Ford E-Series / Econoline
• Chevrolet Express / GMC Savana

Start Where You Are. Expand When You're Ready.

ProStow is designed to grow with your business. Start with a Single Bank today — add a second or third bank later by purchasing one additional upright and the shelf mechanisms you need. You're not locked into the configuration you buy on day one. As your Packout collection grows or your workflow changes, your shelving system can change with it.

Fixed and sliding shelves are also interchangeable within the same upright system, so you can mix shelf types across a single installation if your storage needs call for it.

Commercial-Grade Construction. Holman's 3-Year Warranty.

ProStow shelving is built from textured gray powder-coated steel — resistant to the daily abuse of tools, hardware, and job site conditions. Shelf mounting positions are adjustable so you can configure the layout around the specific Packout cases, tools, and parts you carry. Every ProStow unit is backed by Holman's 3-year warranty.

Holman has been manufacturing commercial vehicle upfitting products for over 100 years. ProStow carries that manufacturing standard into a system built specifically for the tradespeople running Milwaukee Packout. See the full Holman brand page for more on the product lineup.

Upfit Supply: Van Upfitting Specialists

We specialize exclusively in cargo van and truck upfitting. When you order Holman ProStow from Upfit Supply, you're buying from a team that understands van fitment, configuration tradeoffs, and installation requirements at a level a general retailer can't match. Questions about which configuration fits your van or your Packout setup? We have answers.

Milwaukee®, Packout™ and all related marks are the property of their respective owners. Holman ProStow is manufactured by Holman and is not affiliated with, endorsed by, or sponsored by Milwaukee Tool.