Keter Factor 8x6 Shed
#9 in MediumFull review
For buyers who want a no-paint resin shed: 8 x 6 ft of resin for $999.99 ($20.83 per sq ft).
Amazon $999.99$999.99
The Keter Factor 8x6 Shed is the better outdoor storage shed overall, rated 3.2 to 3.1. The Keter Factor 8x6 Shed leads on value and features. The Lifetime 8x5 Shed 6418 wins on warranty and construction. The Lifetime 8x5 Shed 6418 costs $31.78 less ($968.21 vs $999.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Lifetime 8x5 Shed 6418
#15 in MediumFull review
For buyers who want a no-paint resin shed: 8 x 5 ft of resin for $968.21 ($24.21 per sq ft).
Amazon $968.21$968.21
Which should you buy?
- Choose the Keter Factor 8x6 Shed for value ($20.83 per sq ft, $3.51 per cu ft ($999.99) vs $24.21 per sq ft ($968.21)) and features (windows or skylights, vents vs floor included).
- Choose the Lifetime 8x5 Shed 6418 for warranty (10-year warranty vs 5-year warranty) and construction (steel-reinforced resin, 23 lb per sq ft roof load vs steel-reinforced resin).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every medium outdoor storage shed; a clear win is highlighted. How we rank explains each one.
| Factor weight | Keter Factor 8x6 Shed | Lifetime 8x5 Shed 6418 |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Value 35% | 35 $20.83 per sq ft, $3.51 per cu ft ($999.99) | 19 $24.21 per sq ft ($968.21) |
| Size 15% | 51 48 sq ft of floor | 43 40 sq ft of floor |
| Construction 20% | 85 steel-reinforced resin | 94 steel-reinforced resin, 23 lb per sq ft roof load |
| Features 20% | 45 windows or skylights, vents | 35 floor included |
| Warranty 10% | 29 5-year warranty | 64 10-year warranty |
Specifications
| Keter Factor 8x6 Shed | Lifetime 8x5 Shed 6418 | |
|---|---|---|
| Size | ||
| Footprint | 8 x 6 ft | 8 x 5 ft |
| Floor area | 48 sq ft | 40 sq ft |
| Capacity | 285 cu ft | - |
| Build | ||
| Material | Resin | Resin |
| Construction | Steel-reinforced resin | Steel-reinforced resin |
| Floor | - | Included |
| Snow or roof load | - | 23 lb per sq ft |
| Doors and features | ||
| Door width | - | 48 in |
| Door height | - | 72 in |
| Windows or skylights | Yes | - |
| Vents | Yes | - |
| Other | ||
| Warranty | 5 years | 10 years |