MonsterRAX 4x8 Overhead Garage Rack
A low-cost 4x8 rack with a wide drop range and a lifetime warranty. It is rated for less weight than the FLEXIMOUNTS 4x8.
Amazon $139.98$139.98
The MonsterRAX 4x8 Overhead Garage Rack rates 4.1 among 4x8 fixed racks overhead garage storage racks; the FLEXIMOUNTS 4x6 Overhead Garage Rack rates 3.6 among compact fixed racks ones. The MonsterRAX 4x8 Overhead Garage Rack costs $11.01 less ($139.98 vs $150.99).
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.
FLEXIMOUNTS 4x6 Overhead Garage Rack
A 4x6 ft rack for a bay too short for an 8 ft deck. Where 8 ft fits, the 4x8 version costs the same and holds more.
Amazon $150.99$150.99
Scores side by side
These two sit in different type classes (4x8 fixed racks and compact fixed racks), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | MonsterRAX 4x8 Overhead Garage Rack | FLEXIMOUNTS 4x6 Overhead Garage Rack |
|---|---|---|
| Overall rating | 4.1/5 | 3.6/5 |
| Value 30% | 77 $4.37 per sq ft ($139.98, 32 sq ft) | 54 $6.29 per sq ft ($150.99, 24 sq ft) |
| Capacity 25% | 55 500 lb rated load | 45 450 lb rated load |
| Shelf area 15% | 100 32 sq ft of shelf | 67 24 sq ft of shelf |
| Height range 10% | 81 24 to 45 in ceiling drop (21 in of adjustment) | 62 22 to 40 in ceiling drop (18 in of adjustment) |
| Features 10% | 50 deck included | 50 deck included |
| Warranty 10% | 100 limited lifetime warranty | 100 10-year warranty |
Specifications
| MonsterRAX 4x8 Overhead Garage Rack | FLEXIMOUNTS 4x6 Overhead Garage Rack | |
|---|---|---|
| Size and load | ||
| Type | Fixed rack | Fixed rack |
| Deck size | 48 x 96 in | 48 x 72 in |
| Deck area | 32 sq ft | 24 sq ft |
| Shelves | 1 | 1 |
| Total shelf area | 32 sq ft | 24 sq ft |
| Rated capacity | 500 lb | 450 lb |
| Storage volume (maker figure) | 120 cu ft | 60 cu ft |
| Mounting and height | ||
| Ceiling drop | 24-45 in | 22-40 in |
| Joist spacing | - | Up to 24 in, or 48 in centers |
| Build and features | ||
| Deck | Wire grid | Wire grid |
| Warranty | Limited lifetime | 10 years |