Middle Atlantic FLR-FNDLY CBS26in. in. DPMRK - CBS-MRK-26R

Middle Atlantic CBS-MRK-26R Caster Base for MRK Series Racks

Overview

The Middle Atlantic CBS-MRK-26R is a floor-level caster base designed specifically for the MRK rack series, adding mobility and a finished Fine Floor profile to installed rack systems. At 22.5 lbs and rated to support 700 lbs of loaded rack weight, this base is the right choice when you need to reposition a populated rack without disassembly — a practical requirement during AV system commissioning, facility reconfiguration, or phased security equipment deployments. The CBS-MRK-26R (often searched as CBS MRK 26R) measures 20.88 in. wide × 24.25 in. deep × 4 in. tall and ships in a 24.5 lb package.

Key Features

• 700 lb weight capacity: Supports a fully loaded MRK rack — servers, NVRs, UPS units, patch panels — without deflection or risk of tipping during movement. If your rack build runs heavy with dense 1U/2U compute, this capacity ceiling matters.
• 4 in. profile (Fine Floor style): Adds only 4 inches of height to the rack footprint, keeping total stack height predictable for low-ceiling equipment rooms and matching the MRK series aesthetic cleanly.
• 20.88 in. × 24.25 in. footprint: Sized specifically for the MRK base series — width and depth align to MRK rack dimensions so the base seats flush without shimming or modification.
• 22.5 lb base weight: Substantial enough for stability when the rack is stationary, light enough that installation is a two-person job rather than a rigging operation.
• Black wrinkle powder coat finish: Matches standard Middle Atlantic rack finishes, so the base integrates visually rather than standing out as an afterthought in client-facing equipment rooms.
• MRK series compatibility: Engineered to the MRK base series spec — no universal-fit guesswork. If you are building or expanding an Middle Atlantic rack system, this base pairs without adapter hardware.

Integration and Compatibility

The CBS-MRK-26R is designed for rack accessories integration within the MRK series ecosystem. Pair it with MRK open-frame or enclosed racks when mobility is a design requirement — broadcast studios, NOCs, security operations centers, or any environment where rack placement may shift during a build-out. If you are planning a rack enclosure deployment and need caster mobility without compromising the finished appearance, the Fine Floor profile keeps the installation looking intentional. For large-scale network rack buildouts where multiple racks share a row, confirm aisle width accommodates the base footprint before ordering in quantity. This base does not add cable management, power distribution, or venting — treat it as a structural mobility component and spec those items separately from the power distribution accessories line.

Frequently Asked Questions

Q: What is the maximum weight the CBS-MRK-26R can support?

A: The CBS-MRK-26R is rated for a 700 lb weight capacity, which covers fully populated MRK racks with dense compute, UPS units, and patching hardware.

Q: How much height does the CBS-MRK-26R add to my rack?

A: The base stands 4 inches tall (10.2 cm), so your total rack height increases by exactly 4 inches when this caster base is installed.

Q: Is the CBS-MRK-26R compatible with all Middle Atlantic rack models?

A: This base is designed specifically for the MRK series. The 20.88 in. width and 24.25 in. depth match MRK rack dimensions. Verify compatibility with other Middle Atlantic series before ordering.

Q: What finish does the CBS-MRK-26R use?

A: Black wrinkle powder coat, consistent with standard Middle Atlantic rack finishes for a uniform appearance in equipment rooms.

Q: What is the shipping weight of the CBS-MRK-26R?

A: The unit ships at 24.5 lbs (11.1 kg); the product itself weighs 22.5 lbs (10.2 kg).

Marty Allison

The CBS-MRK-26R is one of those components that looks minor on a BOM until you skip it and then spend an afternoon with a pry bar trying to shift a 600 lb populated rack two feet to the left. The 700 lb weight capacity is the number that matters here — I have seen caster bases rate out at 400-500 lbs and then buckle under a security operations rack loaded with NVRs, UPS, and a full patch bay. This base does not create that problem.

Technical Highlights:

• 700 lb weight capacity: Rated to handle dense security rack builds — multiple NVRs, a mid-range UPS, and structured cabling hardware without approaching the limit.
• 4 in. Fine Floor height profile: Adds the minimum practical clearance for caster travel while keeping the total rack height predictable. Low-ceiling IDF closets and equipment rooms typically have 8-10 ft ceilings; 4 inches is the right tradeoff.
• 20.88 in. × 24.25 in. footprint: Matched to MRK series dimensions — no shimming, no improvised adapter plates, seats clean on the first install.

Deployment Considerations:

• Confirm your finished floor can handle point loads before rolling a 700 lb loaded rack across raised flooring panels — the caster wheel contact area concentrates that weight significantly.
• The base adds 4 in. to total stack height; account for this when specifying rack height against ceiling clearance and overhead cable tray routing in the room design.

Best fit for security operations centers, broadcast control rooms, and enterprise IDF builds where the MRK series is already spec'd and the integrator needs to retain rack mobility through a multi-phase commissioning process without pulling equipment.