
The WAG SLM-12 mounts to a compatible human swim ladder with at least three steps and standard rungs up to 1.5 inches, with an accessory hook kit available for larger rungs. Twelve steps provide 44 inches of rise for dogs up to the maker's 130 lb limit, and the roughly 18 lb assembly requires no drilling in its standard setup; compatibility is strict, and the unit must be moved or stowed exactly as instructed around human use and boat travel.

The WAG HSM-10 is a ten-step pontoon system that mounts through flush threaded deck inserts and rests adjustable lower legs against the pontoon. It needs 18.5 inches of open deck width, serves decks up to 24 inches above the water, weighs about 23 lb, and carries a 130 lb maker limit while leaving the human swim ladder open; permanent drilling and exact deck geometry make pre-purchase measurement essential.

doggydocks Large is a rigid 74 x 21 x 5-inch floating ramp for boats, docks, pools, and yachts, weighing 47 lb. It includes a SnapBag system listed at 100 lb of buoyancy and a 12-inch extension that adds 43 lb, but mounting kits cost extra and those buoyancy numbers are not a published maximum dog-weight rating; owners should obtain maker confirmation for their wet dog's weight, freeboard, and mounting setup.

Official height choices are 24, 30, 36, 42, and 48 inches. The official SKU family is 550-DRX and the page identifies the black wire model with a door. The official storefront exposed a $0.00 placeholder rather than a useful selling price, so a retailer is the safer purchase reference. This comparison reflects published specifications and current source evidence rather than hands-on testing.

Official variants span several heights and panel counts, allowing small enclosures or larger modular layouts. The metal panels use separate connecting rods/stakes and include a gate-panel option. The page explicitly positions the Rollick model for indoor and outdoor setups. This comparison reflects published specifications and current source evidence rather than hands-on testing.

The medium configuration can be assembled as roughly 48 by 48 inches or 24 by 72 inches. Official guidance positions this 27-inch model for small to medium dogs and lists an approximate assembled weight near 40 pounds. Clear-wall panels and a walk-through door differentiate it from conventional wire exercise pens. This comparison reflects published specifications and current source evidence rather than hands-on testing.

The official product family offers 24-, 30-, 36-, 42-, and 48-inch height choices. IRIS describes heavy-gauge wire with an epoxy coating and an eight-panel configuration. The foldable panel design includes a door and is marketed for indoor or outdoor setup. This comparison reflects published specifications and current source evidence rather than hands-on testing.

The current Evolv range offers five crate sizes and an official playpen-mode configuration. The official page describes a reinforced steel frame, nylon-coated diamond mesh, rounded edges, and dual-lock doors. Doors, panels, and a base/playpen frame are configuration-dependent accessories, so the exact package must be checked before purchase. This comparison reflects published specifications and current source evidence rather than hands-on testing.

The six-panel yard is 26 inches high and encloses about 18.5 square feet. It includes a lockable 9.5 by 8 inch pet door and folds with a carrying strap. The weather-resistant plastic design can be expanded, with the official page limiting the setup to eight panels. This comparison reflects published specifications and current source evidence rather than hands-on testing.

The four-panel model converts among pen, gate, and divider configurations. Official dimensions are 36 inches high, with an 18.5-inch door opening and 1.25-inch spaces between plastic slats. Richell recommends the model for dogs up to 88 pounds and says two sets can be combined. This comparison reflects published specifications and current source evidence rather than hands-on testing.

The yard uses six 24-inch-wide metal panels and stands 28 inches high. It converts between a free-standing yard and a wall-mounted barrier up to about 146.5 inches wide. A 16.3-inch walk-through door, all-metal chew-resistant construction, and a separate wall-mount mode are listed by Carlson. This comparison reflects published specifications and current source evidence rather than hands-on testing.

The official page represents a multi-variant metal-panel family rather than one fixed enclosure. Official media shows six- and sixteen-panel configurations and a gate-panel design. Panels fold and connect to form multiple shapes for indoor or outdoor use. This comparison reflects published specifications and current source evidence rather than hands-on testing.
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