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
The Lifetime 8x5 Shed 6418 is the better outdoor storage shed overall, rated 3.1 to 2.9. The Lifetime 8x5 Shed 6418 leads on construction. The Keter Signature 9x7 Shed wins on size and features. The Lifetime 8x5 Shed 6418 costs $611.79 less ($968.21 vs $1,580).
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.
Keter Signature 9x7 Shed
#19 in MediumFull review
For buyers who want a wood-look no-paint shed: 9 x 7 ft of composite-panel for $1,580 ($25.08 per sq ft).
Amazon $1,580$1,580
Which should you buy?
- Choose the Lifetime 8x5 Shed 6418 for construction (steel-reinforced resin, 23 lb per sq ft roof load vs composite panels).
- Choose the Keter Signature 9x7 Shed for size (63 sq ft of floor vs 40 sq ft of floor) and features (windows or skylights, vents vs floor included).
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 | Lifetime 8x5 Shed 6418 | Keter Signature 9x7 Shed |
|---|---|---|
| Overall rating | 3.1/5 | 2.9/5 |
| Value 35% | 19 $24.21 per sq ft ($968.21) | 18 $25.08 per sq ft ($1,580) |
| Size 15% | 43 40 sq ft of floor | 62 63 sq ft of floor |
| Construction 20% | 94 steel-reinforced resin, 23 lb per sq ft roof load | 70 composite panels |
| Features 20% | 35 floor included | 45 windows or skylights, vents |
| Warranty 10% | 64 10-year warranty | 0 warranty not published, scored as none |
Specifications
| Lifetime 8x5 Shed 6418 | Keter Signature 9x7 Shed | |
|---|---|---|
| Size | ||
| Footprint | 8 x 5 ft | 9 x 7 ft |
| Floor area | 40 sq ft | 63 sq ft |
| Build | ||
| Material | Resin | Composite |
| Construction | Steel-reinforced resin | Composite panels |
| Floor | Included | - |
| Snow or roof load | 23 lb per sq ft | - |
| Doors and features | ||
| Double doors | - | Yes |
| Door width | 48 in | - |
| Door height | 72 in | - |
| Windows or skylights | - | Yes |
| Vents | - | Yes |
| Other | ||
| Warranty | 10 years | - |