The deciding specification is what the box actually contains, because one listing counts out every panel, rail, screw and wrench, one offers a choice between panels and hanging baskets, and one names hooks in its title and never mentions them again.
By the Lush Editorial Team·Researched & Compared
I compared the published parts lists, the configuration options, the load ratings and every figure across five under sink shelf inserts, reading only each maker's own listing text.
Eight ABS panels of 11 by 6.3 in, four extension rails, two shaped tubes, twelve screws, two caps and two wrenches, expanding from 16.5 in to 30.7 in long and rated to 50 lb a tier.
A stainless frame supplied either as eight panels or as four panels with four hanging baskets, six height levels, expanding from 20.8 in to 34.6 in long with each layer rated to 35 lb.
A two tier pull-out with four suction cups and two adhesive strips, five height levels from 13.8 in to 16.9 in, a lower basket for bottles up to 13 in tall and a 4.7 in deep top basket, at 4.78 lb.
A chrome plated steel two tier slide-out of 12 by 21 by 15.2 in rated to 60 lb, with adjustable dividers, non-slip bottom pads and a stated cabinet requirement of 13.5 by 22 by 19 in, at 13.23 lb.
A two tier tray of 16 by 5.5 by 11.25 in at 1.0 lb, assembled without tools, wiped clean with a damp cloth, with hooks named in the title and nowhere in the bullets.
| Model | Brand | Size (Capacity) | Weight | Best For |
|---|---|---|---|---|
| Under Sink Organizer and Storage 16.5"-30.7" Expanda... | GEMWON | Large | Not listed | Best for knowing exactly what arrives |
| ADVEZO Large Under Sink Organizer 2 Tier Expandable ... | ADVEZO | Large size: 4 panels 4 storage baskets | 4 lb | Best for choosing panels or baskets |
| HOMVIA Under Sink Organizer | HOMVIA | Large | 4.78 lb | Best for anchoring the frame to the floor |
| VEVOR Pull Out Cabinet Organizer | VEVOR | 12"W x 21"Dx15.2"H | 13.23 lb | Best for the heaviest load published |
| Simple Houseware 2-Tier Under Sink Organizer Storage... | Simple Houseware | 16 x 5.5 x 11.25 inches | 1 lb | Best for a tray that just snaps together |
Eight ABS panels of 11 by 6.3 in, four extension rails, two shaped tubes, twelve screws, two caps and two wrenches, expanding from 16.5 in to 30.7 in long and rated to 50 lb a tier.
A stainless frame supplied either as eight panels or as four panels with four hanging baskets, six height levels, expanding from 20.8 in to 34.6 in long with each layer rated to 35 lb.
A two tier pull-out with four suction cups and two adhesive strips, five height levels from 13.8 in to 16.9 in, a lower basket for bottles up to 13 in tall and a 4.7 in deep top basket, at 4.78 lb.
A chrome plated steel two tier slide-out of 12 by 21 by 15.2 in rated to 60 lb, with adjustable dividers, non-slip bottom pads and a stated cabinet requirement of 13.5 by 22 by 19 in, at 13.23 lb.
A two tier tray of 16 by 5.5 by 11.25 in at 1.0 lb, assembled without tools, wiped clean with a damp cloth, with hooks named in the title and nowhere in the bullets.
GEMWON publishes a full parts list: eight ABS panels of 11 by 6.3 in, four extension rails, two tubes, twelve screws, two caps and two wrenches, rated to 50 lb per tier. ADVEZO lets you choose eight panels or four panels with four hanging baskets at 35 lb a layer. HOMVIA adds four suction cups and two adhesive strips. VEVOR adds dividers at 13.23 lb. Simple Houseware names hooks only in its title.
“A parts list is the honest way to describe a kit.”
Lush Food & Drink
GEMWON, and it is not close. Its accessories bullet lists eight ABS panels measuring 11 by 6.3 inches, four extension rails, two H or U shaped tubes, twelve screws, two caps and two wrenches, and states that no professional tools are required. That is the only parts list in this group. ADVEZO describes a choice between configurations rather than a count, HOMVIA lists its fixings, VEVOR names dividers without a number, and Simple Houseware lists nothing at all.
That is the open question. The product title reads two tier under sink organizer storage tray with hooks, and none of the four bullets mentions a hook. The bullets cover multi-purpose use, tool free snap together assembly, wiping the surface with a damp cloth, and the dimensions of 16 by 5.5 by 11.25 inches. So the hooks are real enough to be named in the title and unspecified everywhere else: no count, no size, no placement and no stated load.
VEVOR publishes the highest figure, stating that the steel frame is durable enough to hold up to 60 lbs, on a unit measuring 12 by 21 by 15.2 inches. GEMWON publishes 50 lb per tier, which for two tiers is a different and larger claim. HOMVIA publishes 50 lb for a thickened steel frame. ADVEZO publishes 35 pounds per layer. Read the unit of each figure before comparing them, because all four are worded differently.
Four of the five, in different ways. ADVEZO slides its panels freely to accommodate the pipe layout and adjusts over six levels. GEMWON offers three height positions for the second tier and two for the first, and expands in length from 16.5 to 30.7 inches. HOMVIA offers five height settings and left or right installation. VEVOR installs on either side and moves its dividers. Simple Houseware is fixed at 16 by 5.5 by 11.25 inches.
Because the listing's fields and its own words cannot both be right. The fields read 13.9 by 12.0 by 11.0 inches, while the expandable design bullet states a minimum of 20.8 by 9.7 by 19 inches and a maximum of 34.6 by 9.7 by 19 inches. A frame that spans 34.6 inches is not 13.9 inches wide. Where a field and the maker's sentence disagree, this page follows the sentence, so ADVEZO is read as the 20.8 to 34.6 inch frame it describes.
The ones that publish a shape and no contents. Deco Brothers publishes a stackable sliding basket at 16.7 by 10.8 by 10.2 inches and 3.4 lb with no parts list. REALINN publishes an L-shaped frame at 50 lbs with silicone pads. Vtopmart publishes a two pack of PET drawers with four stainless tubes and a 15 lb top drawer. All are sound purchases and none of them counts out what arrives.
Specifications come from the manufacturers' own published listings. Lush Food & Drink may earn a commission if you buy through a link on this page, at no extra cost to you. How we research.
Twenty nine listings sit on this pool and nearly all of them sell the same promise: a frame that clears a pipe and turns one cabinet floor into two shelves. The figures that separate them are span, height and load. What almost none of them publishes is a parts list, which for a flat packed metal frame is the thing that decides the first twenty minutes you own it.
One of these five counts every screw. Another offers a choice of what the layers are made of. A third supplies fixings to hold the frame to the cabinet floor. A fourth publishes the cabinet it needs as well as its own size. The fifth names hooks in its title and then never mentions them again.
| Specification | GEMWON | ADVEZO | HOMVIA | VEVOR | Simple Houseware |
|---|---|---|---|---|---|
| Parts list published | 8 panels, 4 rails, 2 tubes, 12 screws, 2 caps, 2 wrenches | 8 panels, or 4 panels and 4 hanging baskets | 4 suction cups and 2 adhesive strips | Dividers, count not published | not published |
| Panel or basket figure | Panels of 11 by 6.3 in | not published | Top basket 4.7 in deep | not published | not published |
| Height settings | Three holes above, two below | Six levels | Five levels, 13.8 in to 16.9 in | not published | not published, fixed tiers |
| Span published | 16.5 in to 30.7 in long, 11.2 in deep | 20.8 in to 34.6 in long, 9.7 in deep | 11.8 in wide, 15.9 in deep | 12 in wide, 21 in deep | 16 by 5.5 by 11.25 in |
| Load rating published | 50 lb per tier | 35 lb per layer | 50 lb frame | 60 lb | not published |
| Cabinet requirement published | not published, measure first | Minimum 20.8 by 9.7 by 19 in | not published | 13.5 by 22 by 19 in | not published |
| What fits inside | not published | not published | Bottles up to 13 in tall | not published | not published |
| Material named | 0.5 mm metal frame, ABS panels | Stainless steel frame and panels | Thickened steel | Chrome plated steel | not published |
| Cleaning method published | Hand washing only | Stain resistant panels | not published | Waterproof, easy to clean | Wipe with a damp cloth |
| Weight published | not published | 4.0 lb | 4.78 lb | 13.23 lb | 1.0 lb |
What the table cannot tell you is how any of these behaves half loaded, because a load rating is a number without a condition: none of the four says whether the figure is a static weight, a weight while sliding, or a weight per shelf in use. It also cannot tell you what the Simple Houseware hooks are, since that listing names them once and never returns to them.
GEMWON publishes the kind of bullet that makes a flat packed frame buyable: eight ABS panels at 11 by 6.3 in, four extension rails, two shaped tubes, twelve screws, two caps and two wrenches, with a note that no professional tools are needed. Twelve screws is an honest number rather than a small one, and supplying the wrenches means the assembly does not stall halfway.
The rest of that listing is specific in the same way. It publishes a fixed width of 11.2 in, a length from 16.5 in to 30.7 in, heights from 13.19 in to 16.73 in, three mounting holes for the upper tier and two for the lower, 50 lb per tier on a 0.5 mm frame, and hollow panels to stop water pooling. It also publishes hand washing only.
ADVEZO is the only pick that lets you choose what the layers are. The listing offers eight thickened panels or four panels with four hanging baskets, on a stainless steel frame that expands from 20.8 in to 34.6 in long at 9.7 in deep and 19 in high, over six height levels, with each layer rated to 35 lb. The panels slide freely to clear a pipe.
That flexibility is the point and the figures need care. Its dimension fields read 13.9 by 12.0 by 11.0 in, which cannot describe a frame the same listing says spans up to 34.6 in. This page follows the maker’s own sentence and treats the fields as unusable, which also means the 4.0 lb it publishes is the only field figure here worth quoting.
HOMVIA is the only listing that supplies something to hold the frame down: four suction cups plus two adhesive strips to anchor the base for what it calls a wobble free pull-out. On a pull-out that matters, because the force of opening a loaded drawer is exactly what walks an unfixed frame across a cabinet floor over months.
It also publishes the two interior figures nobody else does: the lower basket holds bottles up to 13 in tall and the top basket is 4.7 in deep. Those are the numbers that tell you whether a tall dish soap bottle stands up under the shelf. With five height levels between 13.8 in and 16.9 in and a 50 lb frame at 4.78 lb, it is the best documented interior on this page.
VEVOR publishes the highest load rating here, 60 lb, on chrome plated steel measuring 12 by 21 by 15.2 in, with adjustable dividers, non-slip bottom pads and a four step assembly that can be built for the left or the right. It is also the one listing that publishes the cabinet it needs, 13.5 by 22 by 19 in, which is the figure most likely to rule it out.
At 13.23 lb it is heavy in the hand before anything goes in it, more than three times the 4.0 lb of the ADVEZO frame. That mass is the reason for the 60 lb figure and the reason the unit stays put without suction cups. It names dividers without saying how many, which is the one gap in an otherwise well measured listing.
Simple Houseware publishes the simplest object here and the clearest set of figures: a two tier tray of 16 by 5.5 by 11.25 in at 1.0 lb, snapped together without tools, wiped clean with a damp cloth. In a narrow gap beside a pipe, a 5.5 in wide tray with two levels does a job none of the wide frames here can.
Its title also says with hooks, and not one of its four bullets mentions a hook. There is no count, no size, no placement and no stated load for them. A buyer cannot tell from the listing whether they hang on the frame for spray bottles or clip to a cabinet wall, which is a shame on a tray whose other figures are unusually tidy.
Across all five, two things are missing. The first is a condition on the load rating: 60 lb, 50 lb per tier, 50 lb for a frame and 35 lb per layer are four different measurements and none says whether the figure is static or while the drawer moves. The second is interior clearance, which only HOMVIA gives.
The second gap is the more practical one. Under a sink the question is always whether a tall bottle stands under the upper shelf, and four of these five answer it only indirectly, through a total height and a number of adjustment levels. HOMVIA’s 13 in bottle figure is the one straight answer in the group.
A cabinet you want to plan properly. GEMWON, with a full parts list, panels at 11 by 6.3 in, a span from 16.5 in to 30.7 in, five height positions and 50 lb per tier. It publishes no weight and asks for hand washing only.
A wide cabinet and a choice of layers. ADVEZO, eight panels or four panels with four hanging baskets on a stainless frame from 20.8 in to 34.6 in long at 35 lb a layer, 4.0 lb. Ignore its dimension fields and use its own figures.
Tall bottles under the shelf. HOMVIA, a two tier pull-out with four suction cups and two adhesive strips, five levels from 13.8 in to 16.9 in, a 13 in bottle clearance and a 4.7 in top basket, at 4.78 lb.
Pans and heavy cleaning bottles. VEVOR, chrome plated steel at 12 by 21 by 15.2 in rated to 60 lb with adjustable dividers, at 13.23 lb. It needs a cabinet of 13.5 by 22 by 19 in, which is the figure to check first.
A narrow gap beside the pipe. Simple Houseware, a two tier tray of 16 by 5.5 by 11.25 in at 1.0 lb that snaps together and wipes clean. Its hooks are named in the title and described nowhere.
Each of the following is a question these five listings do not answer.
