A: This product is a Durable PVC and the Studshelf looks like a good product as well, it's only on the Studshelf website and it's metal.
A: I’ve had both a kept stud shelves and returned versa caddy. I believe stud shelves is sturdier.
|Name||48 in. x 48 in. Shelving and Hooks Organization Kit with 8 Durable PVC Shelves and 4 Hooks||SMT 17 in. D x 7 in. W x 4 in. H Rustic Wood Bedroom Decor Floating Ledge Living Room Kitchen Storage Ledge||4-Pack 12 in. x 36 in. Steel Garage Wall Shelf with Brackets in White||SOLIS SHELVES 4PC STONE|
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|Assembled Depth (in.)||48 in||7 in||12 in||30 in|
|Assembled Width (in.)||4 in||17 in||36 in||30 in|
|Shelf Weight Capacity (lb)||30 lb||75 lb|
|Number of Shelves||3||3 Tiers||4||4 Tiers|
|Included||Installation Kit,Mounting Hardware||Mounting Hardware||Mounting Hardware,Support Brackets||Mounting Hardware|
|Shelf Height (in.)||2 in||4 in||5 in||4 in|
|Assembly Type||Full Assembly Required||Full Assembly Required|
|View Product||View Product||View Product||View Product|