Comparison
Keter vs Lifetime sheds
The Lifetime 10x8 Ft. Outdoor Storage Shed at $1,693.67 spells out a slip-resistant floor, a skylight, and screened vents right in the listing. The Keter Factor 8x6 at $975.79 costs less and covers a smaller footprint, but its listing does not confirm a floor, so check the spec page before you buy.
| Keter | Lifetime | |
|---|---|---|
| Wall construction | Dual-wall resin panels | Dual-wall HDPE, several models steel-reinforced |
| Price per sq ft (this catalog) | about $18 to $20 | about $15 to $21 depending on size |
| Floor confirmed in title | Not on the Factor or Darwin lines checked here, confirm on the listing | Yes on the 10x8 dual-entry style model |
| Skylight or windows | Darwin and Signature lines list skylight and windows | Several models list skylight and side windows |
| Ventilation | Built-in ventilation called out on Darwin and Factor lines | Screened vents called out on several models |
| Size range in this catalog | From compact cabinets up to about 13 by 7.5 ft | From about 5 by 8 ft up to 8 by 20 ft |
| Customizable walls | Called out on the Darwin line specifically | Not called out in the titles checked here |
| Best for | Smaller footprints, tighter budgets | Buyers who want floor, skylight, and vents confirmed up front |
The options compared
Best Keter pick with skylight and vents Keter Darwin 6x8 Ft Outdoor Tool Storage Shed $899.99 Check price on Amazon
Best Lifetime pick (confirmed floor) Lifetime 10×8 Ft. Outdoor Storage Shed $1,693.67 Check price on Amazon
Prices change often; the button shows today's price on Amazon.
What does each brand actually confirm in the listing?
This matters more than brand reputation. The Lifetime 10x8 listing spells out a slip-resistant floor, a skylight, screened vents, and adjustable shelves, all in the title itself, at $1,693.67. That is an unusually complete set of confirmed features for a shed listing.
The Keter Factor 8x6 at $975.79 does not mention a floor in its title, and neither does the Keter Darwin 6x8 at $899.99, though the Darwin does call out a skylight, window, built-in ventilation, and customizable walls. That does not mean these Keter models lack a floor, only that the title does not say so, which is exactly the kind of detail worth checking on the spec page before you order.
Which brand is actually cheaper per square foot?
It is closer than most shoppers expect once you normalize for size. The Keter Factor 8x6 works out to about $20.33 a square foot. The Keter Darwin 6x8 at $899.99 runs a bit less, about $18.75 a square foot, for a shed with a listed skylight and ventilation.
On the Lifetime side, the 10x8 model runs about $21.17 a square foot with its longer confirmed feature list, while the larger Lifetime 8x15 at $1,854 drops to about $15.45 a square foot simply because bigger footprints price out more efficiently in either brand. If your priority is the lowest cost per square foot, look at the largest model in either lineup that still fits your yard, not the smallest.
Do both brands make sheds this large?
Yes, both scale from compact cabinets up to full-size buildings, though the largest options differ. In this catalog, Keter tops out around 13 by 7.5 feet on the Newton Plus line, while Lifetime runs as large as 8 by 20 feet on its largest dual-entry models. If you need something closer to a small workshop than a tool shed, check the Lifetime lineup first; if you need something modest for a smaller yard, both brands have compact options priced similarly per square foot.
Does either brand handle snow and wind better?
Both are dual-wall resin construction, and neither brand's published specs in this catalog change the underlying physics: a shed's roof load runs about 0.67 times your local ground snow load before slope reduction, using the ASCE 7 method for an unheated, low-risk structure. Anchoring requirements are also the same regardless of brand, one anchor at every corner minimum and one every 6 to 8 feet along long walls. Neither Keter nor Lifetime changes that math; pick your anchor kit based on the shed's footprint, not the brand name on the door.
How we chose these picks
Nothing here was assembled or tested by hand. These picks come from the exact wording published in each Amazon listing and recurring patterns in verified owner reviews for both brands. Where a listing does not confirm a detail, such as a floor, that gap is stated rather than assumed away.
Buying tips before you decide
- Read the full listing and spec page for floor confirmation on any Keter model before assuming one is included.
- Use the shed size calculator to settle on a footprint before comparing brands.
- Check your local code before you build; the IRC's 200 square foot exemption is commonly amended down to 120 or 100 square feet by local towns.
- Anchor fully on either brand; a confirmed floor does not replace ground anchors in high wind.
Frequently asked questions
Does the Keter Factor come with a floor?
The listing checked for this comparison does not confirm a floor in its title or bullet points. That is not the same as confirming it lacks one; it means the detail is not stated where we can verify it. Check the product's spec page or the current Amazon listing directly before you order if a floor matters to your purchase.
Is Lifetime more expensive than Keter overall?
Not consistently. Smaller Keter models can cost less in total dollars simply because they cover less square footage, but per square foot the two brands land close together in this catalog, generally between $15 and $21 depending on the specific model and size you pick.
Which brand has better ventilation?
Both brands call out ventilation features on select models. Keter's Darwin and Factor lines list built-in ventilation, and Lifetime's larger dual-entry models list screened vents. Neither brand's entire lineup is uniform on this, so check the specific model's listing rather than assuming by brand.
Can I get a skylight on either brand?
Yes, both brands offer skylights on select models. Keter's Darwin, Newton, and Signature lines list a skylight, and several Lifetime models, including the 10x8 pick here, list one as well. Smaller, budget-tier models in either brand are less likely to include one.
Does either brand sell sheds without a floor?
Likely yes for some models in both lineups, since floor inclusion is not consistently stated across every listing we checked. Rather than assume either brand universally includes or excludes a floor, check the specific model's listing and spec page before you order.
This page is researched guidance, not professional engineering, legal or building-code advice. Sizes, loads and permit rules vary by product and by town: check your local code and the kit manufacturer's instructions before you build.