Designed in Belfast, the 3 Series has a rapid lead time and is easy to install, built to the same BLK BOX quality standard as the rest of the range. Made from 70x70x3mm steel, it features 4-way numbered hole spacing for precise adjustments, making it straightforward to integrate a wide range of attachments. Whether for an independent gym owner or a high-performance facility, this rack offers durability and adaptability at a mid-tier price point.
The 3 Series is built to evolve: its modular design is intended to grow alongside a facility rather than be replaced as training needs change, making it a scalable option for gyms expecting to expand their equipment over time. This sits between BLK BOX's two other off-the-shelf ranges - a step up in steel gauge and hole spacing precision from the entry-level build, without the price point of the commercial-grade range used by elite facilities.
Available as full rigs, half racks, and Nexus functional trainer configurations, the 3 Series can be specified to match the exact footprint and training style a facility needs.
For a lighter, more budget-focused option, see the 1 Series. For the heavy-duty, commercial-grade build used by elite facilities, see the 5 Series.
What makes the 3 Series different from the 1 or 5 Series?
The 3 Series offers a modular, future-proof design using 70x70x3mm steel. It includes 4-way numbered hole spacing and a broader range of colour and branding options than the 1 Series, while remaining more accessible than the elite-level 5 Series.
What are the height options for the 3 Series racks?
Racks are available in 2.2m or 2.4m heights to suit different ceiling clearances and facility needs. Taller options (up to 3.6m) are also available for rig setups.
Can I integrate cables and storage into the 3 Series?
Yes - the 3 Series supports integrated cable columns and multiple storage attachments. It’s designed to reduce footprint while enhancing training versatility.
Is the 3 Series available in different colours?
Absolutely. The 3 Series comes in 14 standard colours with optional branding upgrades, including custom brand plates and stack guards.
What are the key differences between the 1, 3, and 5 Series?
1 Series: Entry-level rigs and racks made from 60x60x3mm steel, designed for quick installation and rapid delivery.
3 Series: Modular and expandable, made from 70x70x3mm steel. Ideal if you’re looking for scalability and attachment compatibility.
5 Series: Premium and fully customisable, made from 80x80x3mm steel. Includes Westside hole spacing and advanced performance testing attachments.
What type of hardware is used in the Series 3 racks?
The racks use heavy-duty M20 hardware for strength and stability.