Sevenblue 2-Pack Under-Sink Shelf, L-Shaped 2 Tier, 11 to 13 in High, Black

The frame narrows at the top and widens at the bottom, an L in cross-section, which lets it straddle pipework while leaving the lower shelf clear for taller bottles.

Three height settings run from 11 to 13 inches, so the frame gets matched to the cabinet rather than the other way round.

Baked-finish metal handles up to 50 lb and resists rust; a damp cloth clears it. Worth noting the specification names iron while the description says carbon steel, the same broad family but different on paper.

Its footprint is 13.6 inches deep, 9.5 wide and 13 high, and it arrives ready to use.

Two come in the pack, in black.

Beyond a sink base it works on open shelving or inside a bathroom cabinet, wherever a shelf sits too far apart from the next.

• Two units per pack, black
• 13.6 in deep, 9.5 wide, 13 high
• Three heights, 11 to 13 in
• L-shape clears pipework
• 50 lb capacity
• Baked rust-resistant finish, no assembly