A Common Question From Keepers Expanding Their Collection
Rack systems have earned their reputation almost entirely through terrestrial and semi-terrestrial species — ball pythons, corn snakes, kingsnakes, and boas that spend most of their time on the ground or tucked into horizontal cover. That track record leads a lot of keepers with arboreal species in their collection, or an interest in adding one, to assume racks simply aren't built for animals that spend the majority of their life off the ground. That assumption is understandable given how the category has developed, but it's worth examining more closely rather than treating it as a fixed rule.
What Makes a Species Arboreal, and Why It Matters for Housing
Arboreal snakes — species like green tree pythons, emerald tree boas, and various tree-dwelling colubrids — have evolved specifically around a vertical lifestyle. They rest coiled around branches rather than lying flat, move primarily by climbing rather than crawling across open ground, and in many cases have physical adaptations like a laterally compressed body shape suited to gripping branches rather than distributing weight across a flat surface. Their environmental needs reflect this: more emphasis on vertical space and climbing structure than on horizontal floor footprint, which is the opposite of what a standard rack tub is optimized to deliver.
Where Standard Rack Housing Falls Short for Arboreal Species
Being direct about the current limitation: a standard horizontal rack tub, built around the floor-space needs of a terrestrial species, does not replicate the vertical climbing environment an arboreal species relies on for natural behavior and long-term welfare. This isn't a matter of degree or optimization — it's a fundamentally different housing requirement. An arboreal species housed in a tub with no vertical climbing structure is missing something its husbandry genuinely depends on, regardless of how efficiently that tub manages heat, humidity, or floor space for a ground-dwelling animal.
Why We're Not Simply Saying Racks Don't Work for Arboreal Species
At the same time, it would be inaccurate to frame this as a permanent, unsolvable mismatch between arboreal species and rack-style housing efficiency. The core value proposition of a rack — density, consistent climate control, efficient use of vertical room space through stacking — doesn't disappear just because a species needs vertical structure inside its enclosure rather than horizontal floor space. What's needed is a rack tier and tub design built around vertical orientation and climbing furniture from the ground up, rather than simply placing a terrestrial-style tub in a rack frame and calling it arboreal-appropriate.
What an Arboreal-Specific Rack Configuration Would Need to Solve
A genuinely arboreal-appropriate rack tier needs meaningfully more vertical clearance than the 5.25 inch height built into our current ARS tub lineup — enough room for real branch or vine placement that supports natural coiling and movement behavior. It also needs a tub or enclosure design that supports securely mounting climbing furniture without that furniture shifting or collapsing, along with airflow and humidity management suited to species like emerald tree boas and green tree pythons that often require higher ambient humidity than most terrestrial rack-kept species.
These aren't small engineering considerations, and it's part of why the category has taken longer to develop compared to terrestrial rack systems, which had a much more direct path from tub dimensions to finished product.
Species-Specific Nuance Within "Arboreal"
It's also worth noting that arboreal species themselves aren't a single uniform category with identical needs. Some, like many tree boas, spend nearly all their time coiled at a fixed perch height with minimal horizontal movement, while others move more actively across a larger climbing area. A future rack-based arboreal solution would likely need to account for this range rather than assuming one vertical tier design serves every arboreal species equally well, similar to how our current terrestrial lineup varies tub series by species size rather than using one universal tub for every ground-dwelling snake.
Where Rack Theory Stands on Arboreal Housing
Arboreal-specific rack configurations are actively in development on our end. We're not going to claim a finished solution exists today, and we'd rather be straightforward about that than market a standard tub as arboreal-appropriate when it structurally isn't. What we can say is that the demand from keepers with mixed collections — terrestrial species on standard racks, arboreal species needing something different — is a real gap we're actively working to close, not a category we've written off as incompatible with rack-based housing long-term.
What Arboreal Keepers Can Do in the Meantime
For keepers currently housing arboreal species, a dedicated vertically oriented enclosure — whether a front-opening terrarium or a purpose-built arboreal cage — remains the appropriate housing choice until a genuinely suitable rack-based option exists. This isn't a compromise so much as matching the animal's actual needs to available housing options as they currently stand.
If you're running a mixed collection, there's no conflict in housing your terrestrial species — ball pythons, corn snakes, boas, kingsnakes, and similar species — in standard racks while keeping arboreal species in appropriate vertical enclosures elsewhere in your reptile room. Racks and vertical enclosures aren't competing systems; they're each suited to different categories of animal, and a serious multi-species collection often uses both.
How This Compares to the Terrestrial Rack Category's Own History
It's worth remembering that terrestrial rack systems weren't always the mature, standardized category they are today either — early rack designs went through real iteration before arriving at the tub dimensions, heat delivery methods, and stacking systems that are now considered standard across the industry. Arboreal-appropriate racking is earlier in that same kind of development curve, working through the specific engineering challenges — vertical clearance, secure climbing furniture, humidity management — that terrestrial racks already solved for horizontal, ground-dwelling species years ago. There's a reasonable path from where the category stands today to a genuinely solid product, it just requires the same kind of careful, iterative development terrestrial racks went through rather than skipping ahead to a rushed version.
Staying Informed as This Develops
If you keep arboreal species and want a rack-based option built around their actual needs rather than a repurposed terrestrial tub, this is a category worth watching. We'd rather take the time to build something that genuinely works for climbing species than rush a product that technically fits in a rack frame but doesn't serve the animal.
In the meantime, our current lineup — the Core 55-5, Core 70-5, Glow 55-4, and Glow 70-4 — covers the terrestrial and semi-terrestrial portion of your collection with the same build quality and heat consistency across every tier.
