Question 1

I'm very frustrated. the plastic shelf holders are not snapping and staying closed what am i doing wrong?

Accepted Answer

The clips don’t snap together all the way closed until you push the shelf down onto the clips. The gentle force of that shelf push is what closes them. Just make sure you attach the clips with the “top” and arrow facing up and just above the single grooves of your choice…not one of the double grooves…on the pole then slide them down the pole a little until they snap into that single groove. And be sure to slide the shelf on with the lip facing down. It’s too bad the directions don’t explain this about the clips because our brains think the clips should snap completely together when attached to the poles.

Question 2

What is the diameter of the posts?

Accepted Answer

I don't know what diameter the other sizes are, but the 30" three tier shelf is only 3/4" diameter. I went off the previous answer when I bought three of these. Boy was I fooled when I received 3/4" poles. Smh!

Question 3

Is it possible to turn the shelves around so that the edges of the shelves have a lip?

Accepted Answer

The answer is that you should not unless you are not planning to put much weight on them. 
The HOLES in the Shelves for the Brackets (standards) are Trapezoidal in shape. They are designed to work like Wedges with the Plastic Bracket pieces. 
The more weight is added to the shelf, the harder the bracket pieces are shoved together so they GRIP the Shelves ONTO the Poles (shelf stndards) keeping them in place. 
If you turn the shelves UPSIDE down, the Wedge Functionality is defeated. 
They will not be Nearly as sturdy and will be prone to Slipping down the Poles. 
Could you get Lucky and have them Not slip?  Well Yes, if not much eight at all was on each shelf (30 to 50  Pounds). 
But assembled correctly, these should hold 350 pounds per shelf with NO Way to slip. 
Lessons learned from Ancient Egyptians, Romans, and Greeks.
A KEYSTONE in an arch is the perfect example.

Question 4

Are these the industrial size poles that are 1" so I can use shelves I already own?

Accepted Answer

Yes. They are 1” poles. I have 6 of the 14x30” 5 shelves units. I almost bought the wrong clips to add extra shelves because of the irresponsible answers given on here. So glad I measured and found that the poles are 1”!

ASIN	B01LYBQXRH
Age Range Description	Adult
Assembly Instructions Description	Easy to assemble, no tools required
Back Style	with-back
Bed Size	4 Shelves
Bed Type	Tiered Shelf
Best Sellers Rank	#3,345 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #10 in Standing Shelf Units
Brand	amazon basics
Colour	Black
Country of Origin	China
Customer Reviews	4.2 out of 5 stars 158,100 Reviews
Finish Types	black
Furniture Finish	Chrome
Global Trade Identification Number	00841710155334
Importer Contact Information	ETRADE MARKETING PRIVATE LIMITED, 633-B, UDYOG VIHAR, PAHSE -V, SECTOR-19, GURUGRAM-122016, HARYANA
Included Components	wire shelf, pole, leveling feet,plastic clips,user manual, anti-tipping restrain,plastic cover
Installation Type	Freestanding
Is Assembly Required?	Yes
Item Depth	14 inches
Item Dimensions	91.4 x 35.6 x 137.2 Centimeters
Item Dimensions D x W x H	35.6D x 91.4W x 137.2H Centimeters
Item Weight	27.96 Pounds
Manufacturer	Mittal Distributors India, E-10, Sector-63, Noida, India - 201309 8448242854, Mittal Distributors India, E-10, Sector-63, Noida, India - 201309 8448242854
Manufacturer Contact Information	Mittal Distributors India, E-10, Sector-63, Noida, India - 201309 8448242854
Manufacturer Part Number	SL-SUAM-7
Material	Alloy Steel
Model number	SL-SUAM-7
Mounting Type	Floor Mount
Number Of Shelves	4
Number of Items	1
Number of Shelves	4
Packer Contact Information	Mittal Distributors India, E-10, Sector-63, Noida, India - 201309 8448242854
Product Care Instructions	Wipe with Dry Cloth
Product Features	Adjustable, Durable
Recommended Uses For Product	Dorm, Garage, Kitchen
Room Type	Office
Shape	Rectangular
Shelf Bracket Shape	Rectangular
Shelf Type	Tiered Shelf
Special Feature	Adjustable, Durable
Specific Uses For Product	kitchen
Style	Modern
UPC	841710155334
Unit Count	1 Count
Warranty Description	1 year limited warranty
Weight Capacity	Minimum weight: 158.75 kg
Weight Capacity Maximum	635 Kilograms
Wood Type	Alloy Steel

Amazon Basics Height Adjustable 4-Shelves Heavy Duty Rack- Black

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