Equipment2026-06-28
Best Pilates Reformer Accessories (2026): Springs, Boxes & More
The accessories that expand what your home reformer can do — from jump boards to tower attachments.
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Best Pilates Reformer Short Box (2026): Accessories Compared
Updated June 28, 2026 · 7 min read
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The short box unlocks an entire chapter of the Pilates repertoire — rollback series, tree, flat back, oblique twist, and back extension — that simply cannot be done properly without one. Yet it's one of the most under-purchased accessories for home reformers, often because practitioners don't realise how brand-specific sizing is. Here's what to buy for your specific reformer, from the under-$90 AeroPilates option to the studio-grade Merrithew.
Quick Picks
- 01Balanced Body Standard Short Box — Best for Balanced Body reformer owners
- 02Merrithew Short Box for SPX / V2 Max Reformers — Best for Merrithew reformer owners
- 03Align Pilates Short Box — A Series Compatible — Best value box for mid-range reformers
- 04AeroPilates Short Box — for AeroPilates Reformers — Best for AeroPilates home reformer owners
- 05Peak Pilates Short Box — MVe & FIT Reformer Compatible — Best for Peak Pilates users
- 06Universal Pilates Reformer Short Box — Foam Pad — Best universal option for multi-brand reformers
01Editor's Pick
Balanced Body Standard Short Box
From $185Balanced Body's standard short box is engineered to sit perfectly on Allegro 2 and Studio Reformer carriages. The padded top surface accommodates sitting and supine box work, while the angled base stays locked in place during rollback and tree series. Compatible with Balanced Body's long box and accessory storage system.
Shop on Amazon02Premium Build
Merrithew Short Box for SPX / V2 Max Reformers
From $225Merrithew's short box features their signature non-slip base designed for the SPX and V2 Max carriage width. The upholstered padding density is higher than most competitors — notable during seated oblique work and back extension series. Includes a strap loop for footwork variations.
Shop on Amazon03Great Value
Align Pilates Short Box — A Series Compatible
From $165Align Pilates produces a clean short box that fits their A8, C8, and F3 reformer carriages with minor shimming adjustments. The solid wood frame with PU leather cover is well-constructed at this price. A dependable option for home practitioners who want brand-matched accessories without the Balanced Body or Merrithew premium.
Shop on Amazon04Budget Pick
AeroPilates Short Box — for AeroPilates Reformers
From $89Designed specifically for AeroPilates 4700, 5500, and 7500 series reformers, this short box is the most affordable brand-matched option on the market. The padded surface handles sitting and supine work adequately for home practice, and it clicks securely onto the AeroPilates carriage rail system.
Shop on Amazon05Studio Grade
Peak Pilates Short Box — MVe & FIT Reformer Compatible
From $195Peak Pilates produces a compact short box compatible with their MVe and FIT reformer lines. The dense upholstery supports extended seated spine work without uncomfortable pressure points. A niche but important option for the significant number of home and studio practitioners using Peak equipment.
Shop on Amazon06Universal Fit
Universal Pilates Reformer Short Box — Foam Pad
From $75For home practitioners with reformers from smaller brands, a universal short box with adjustable non-slip base strips provides a workable solution. The foam padded design handles the core short box repertoire — rollback, tree, flat back, obliques — without the brand-specific precision of premium boxes.
Shop on AmazonBuyer's Guide: Choosing a Short Box
Match your reformer brand
The single most important factor. Carriage widths range from 21 inches (AeroPilates) to 24 inches (Merrithew V2 Max). A box designed for a narrower carriage on a wide reformer will rock during rollbacks — potentially dangerous. Always check your reformer's carriage width before purchasing.
Padding density
Box work involves sustained seated pressure during rollback and oblique series. Thin padding causes discomfort within minutes. Merrithew and Balanced Body use higher-density foam than most budget alternatives. If you plan to use the box frequently, padding quality matters more than price.
Strap compatibility
Many short box exercises use a strap looped around the practitioner's feet. Some boxes include an integrated strap loop; others require the reformer's own straps to be repositioned. Confirm which system your box uses before your first session.
Frequently Asked Questions
What is a Pilates reformer short box used for?
The short box sits on the reformer carriage and supports a series of seated and supine exercises — including rollback, tree, flat back, oblique twist, and back extension. It elevates the practitioner above the carriage rails and provides a stable base for spinal articulation and hip flexor work.
Are reformer short boxes universal or brand-specific?
Most reformer short boxes are brand-specific: Balanced Body boxes fit Balanced Body reformers, Merrithew boxes fit Merrithew carriages. Carriage widths and rail heights vary enough between brands that a mismatched box may rock or not sit flat. Universal options exist but require shimming or non-slip padding to compensate.
Can I use a long box as a short box?
No — they serve different purposes. The short box is a compact square/rectangular platform for seated exercises and rollback series. The long box is a narrower elongated board used for prone back extension, swimming, and rowing exercises. Most studios and advanced home practitioners eventually invest in both.
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