Suncast Stow-Away Horizontal Shed (70 cu ft, BMS4720)
Best overall (the one with a 10-year document behind it) — The biggest horizontal here, on the class's best warranty document: 70 cubic feet, steel-reinforced multi-wall resin, gas shocks, a soft-close lid, and Suncast's ten-year term with its 65 mph wind and 8-inch snow conditions in writing. 4.4★/149 on a clean base. Owners' complaints are the instructions and a shed that must be anchored.
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The only score that counts how often a product breaks, not just how owners feel about it.
- Three parts add up to the score: what owners rate it, how often it fails them, and whether a credentialed tester backed it.
- Bands: Exceptional 8.5 and up, Excellent 7.5, Very good 6.5, Good 5.5, Fair 4, Poor below 4. Every score is dated.
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Very good
Very good is 6.5 to 7.4.
See why it scored 7.1
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Specs
| Model | BMS4720 |
| Capacity | 70 cu ft (Suncast's figure — the interior) |
| Exterior volume | 93 cu ft (70.5 × 43.75 × 52 in on the listing; Suncast's own interior 65.5 × 38 × 48.5 in works out to 70) |
| Fits | Two 96-gallon waste containers (Suncast) |
| Material | Steel-reinforced multi-wall resin |
| Lid | Gas-shock assisted, soft-close hinge; front double doors |
| Floor | Included |
| Warranty | 10-year limited (registration within 90 days; wind over 65 mph and snow left over 8 in. deep are excluded) |
| Owner rating | 4.4★ / 149 |
Pros
- One of the two sheds here (both Suncast) whose maker publishes a ten-year warranty document with a wind threshold (damage from wind over 65 mph is excluded; doors must be latched in storms) and a snow condition (clear it past 8 in.)
- Holds two 96-gallon municipal carts — the size that makes half the 'my cans don't fit' complaints on rival listings
- Gas shocks hold the lid open one-handed and a soft-close hinge stops it slamming; steel-reinforced multi-wall panels, not single-skin resin
- 4.4★ across 149, all visible cards US verified purchases, no Vine
Cons
- 'It took 2.5 hours to put it together (one person). I did not anchor it… Exactly one week later we had some strong southerly winds… it blew over and is no longer repairable' — Suncast's own warranty requires the doors latched in wind; anchor it
- 'It comes with the most atrocious instructions. Some parts do not even correspond to the instructions' — three of ten critical cards are the manual
- Shipping damage: 'most of the panels, doors and metal parts were bent, creased, or damaged so assembly was impossible' (Suncast replaced it); one owner's floor 'was not cut out for the walls'
- 14 critical reviews at our first read, when the base was 144 (10%); the base is under a year old on this ASIN
A long, badly documented assembly, and a shed that must be anchored. 'Very confusing instructions- doors very hard to put on'; 'Some parts do not even correspond to the instructions'; 'It takes two people to put together (a third person for the lid) and HOURS of work'. One owner left it unanchored on a driveway with full cans inside and 'exactly one week later… it blew over and is no longer repairable'. Shipping damage in two cards, one replaced by Suncast.
10 critical read 2026-09-17 of 14 critical, when the base was 144 (10%); instructions/assembly in 5, shipping or factory damage in 3, wind in 1, build in 2; dates May 2025 → Aug 2026; 10/10 Verified Purchase, 0 Vine. · critical reviews read September 2026
FAQ
Who is the Suncast Stow-Away Horizontal Shed (70 cu ft, BMS4720) for?
You have two full-size municipal carts to hide and you want the biggest horizontal shed on Amazon from a maker that publishes a ten-year warranty, a wind threshold and a snow clause: 70 cubic feet of steel-reinforced multi-wall resin that Suncast says holds two 96-gallon waste containers, gas shocks and a soft-close lid, 4.4★/149 with every visible card a US verified purchase. Not for you if you will not anchor it — the one owner who set it loose on a driveway watched it blow over a week later.
What do owners say about the Suncast Stow-Away Horizontal Shed (70 cu ft, BMS4720)?
4.4★ across 149 owner ratings (Amazon, read September 2026). What owners complain about: A long, badly documented assembly, and a shed that must be anchored. 'Very confusing instructions- doors very hard to put on'; 'Some parts do not even correspond to the instructions'; 'It takes two people to put together (a third person for the lid) and HOURS of work'. One owner left it unanchored on a driveway with full cans inside and 'exactly one week later… it blew over and is no longer repairable'. Shipping damage in two cards, one replaced by Suncast.
What is the warranty on the Suncast Stow-Away Horizontal Shed (70 cu ft, BMS4720)?
10-year limited (registration within 90 days; wind over 65 mph and snow left over 8 in. deep are excluded)
Does the Suncast Stow-Away Horizontal Shed (70 cu ft, BMS4720) warranty still apply if I buy it on Amazon?
Suncast answers that in its own warranty document, which we read on 2026-10-21: The product's warranty must be activated to become effective. To activate the warranty, the owner (purchaser) must submit a product registration and proof of purchase to Suncast within ninety (90) days of the original purchase date. We quote the maker rather than deciding your case — read the document before you buy if the warranty is why you are buying.
Record
- — Still no featured offer on Amazon; new units only from third-party sellers. Limited-availability record re-dated and disclosed on the post.
- — Amazon.com stopped selling it: the listing has no featured offer and its one offer is Spreetail at $579.99, up from Amazon's own $449.99 on 2026-09-17. The base moved 4.5 across 144 to 4.4 across 149. Recorded as limited availability; the crown stands on the warranty document and the two-cart fit, and the price is the one a reader can pay today.
- — Added as best overall when the horizontal-shed roundup shipped: 4.5 stars across 144 on a clean base, 70 cubic feet, and the class's best warranty document (ten years, with a wind threshold and a snow clause); owners' complaints are the instructions and an unanchored shed blowing over.
Warranty — and what changes if you buy it on Amazon
10-year limited (registration within 90 days; wind over 65 mph and snow left over 8 in. deep are excluded) · you are buying this on Amazon
The product's warranty must be activated to become effective. To activate the warranty, the owner (purchaser) must submit a product registration and proof of purchase to Suncast within ninety (90) days of the original purchase date.
Suncast’s own warranty document · read
Read it yourself: Suncast warranty document · we read it . Terms change without announcement, so treat this as a dated snapshot. How warranty works by buy path →
✓ Safety: no active recall — CPSC recall API checked 2026-09-17: ProductName=Suncast → 0 records, ProductName=storage shed → 0 and ProductName=horizontal shed → 0, with the positive control ProductName=heater returning 181 records in the same sitting. A lift-lid shed is a large lidded box: lock it when small children play nearby, and never let a child climb inside.
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Data last verified: September 2026. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.