Which Shelf Decorations Actually Fit Inside a Hexagon?

Most shelf decorations bought for a hexagon fail on one measurement: the flat floor inside is roughly 45% of the width printed on the listing. On a 13.8 in (35 cm) hexagon cut from a 0.6 in (1.5 cm) board, that floor is about 6.2 in across. Anything with a wider base has to lean on the sloping sides, hang off them, or move to a straight ledge.

The width a maker quotes is the hexagon's widest measurement, corner to opposite corner through the middle. Nothing stands in the middle. Things stand on the bottom edge, and on a regular hexagon that edge is exactly half the corner-to-corner figure before any timber is taken off. Houseland publishes three hexagon widths in one set, 13.8 / 11.8 / 9.8 in (35 / 30 / 25 cm), so the same subtraction runs three times and the smallest module ends up with a floor barely wider than a coffee mug.

Why is the flat floor only half the width on the listing?

Because a regular hexagon's bottom edge is one half of its long diagonal, and the board then eats into that half from both sloping sides. A 13.8 in hexagon has a 6.9 in bottom edge on the outside, and about 6.2 in of it survives once a 0.6 in board is deducted. Wikipedia's hexagon article states the relationship in one line: the maximal diameter, which is the long diagonal, is twice the circumradius, and the circumradius equals the side length.

Woodworkers reach the identical number from the cutting list rather than from the algebra. The Handyman's Daughter builds 12 in diameter hexagons out of six 6 in pieces mitred at opposing 30 degree angles. Pine and Poplar's build cuts 5.5 in pieces for an 11 in hexagon. Halve the diameter and you have the piece length; halve the diameter and you have the floor, because they are the same edge.

Height behaves differently again, and it is the figure people guess worst. A hexagon resting on a flat base is shorter than it is wide, at a height-to-width ratio Wikipedia gives as 1:1.1547, which is 0.866 between the parallel sides for a long diagonal of 1. A 13.8 in hexagon is therefore about 11.9 in tall on the outside and roughly 10.8 in tall on the inside, since the board takes its thickness off the top and off the bottom.

How do you work out the usable floor of any hexagon shelf?

Five steps with a tape measure, and not one of them needs the listing to be honest.

1. Measure the hexagon corner to opposite corner, through the middle, on its widest axis. If that matches the number the seller quoted, the seller is quoting the long diagonal.
2. Halve it. That figure is the outside bottom edge, and it is the ceiling on what can stand up in there.
3. Subtract 1.15 times the board thickness. A 0.6 in (1.5 cm) board costs about 0.7 in, which is how 6.9 in becomes 6.2 in.
4. Measure your object at its base, not at its widest point. A tapered pot, a bowl and a bud vase are all narrower on the bottom than they look on the shelf.
5. Check depth as a separate limit. A module 3.5 in (9 cm) deep will not take a frame propped on a splayed easel back, however wide the hexagon reads.

The 1.15 exists because board thickness is measured square to the side it sits on, not along the bottom edge, so it costs more floor than its own thickness. Some sellers quote across the flats instead of corner to corner. If yours does, skip step two and divide the flat-to-flat figure by 1.732 to get the bottom edge, then carry on. The way to tell which you were given is step one: measure both axes and see which one the listing matched. This is the same habit that saves people on depth, set out in how to measure for a multi-piece shelf before buying.

Which shelf decorations suit which hexagon width?

One medium object per hexagon, chosen against the floor rather than against the quoted width. Here are the three widths in the set, worked all the way through.

The pattern is blunt. The 9.8 in module carries about 4.2 in of floor, which is one candle or one small pot and genuinely nothing else. Standard American frame sizes make the point quickly: Frame USA lists 4x6, 5x7 and 8x10 among the everyday sizes, and only the first two of those stand upright in the widest module, portrait way round. Turn a 5 x 7 landscape and it is already too wide for the floor beneath it.

From the shop

6-Piece Matte Black Floating Wall Shelves

The set is six pieces: three hexagons 13.8 / 11.8 / 9.8 in (35 / 30 / 25 cm) wide and three straight ledges 19.7 in (50 cm) long. Every module is 3.5 in (9 cm) deep with a 0.6 in (1.5 cm) board, open at the back, and rated up to 11 lb (5 kg) per piece.

View the 6-piece matte black shelf set — dimensions & current price

Does the slope above the floor give you anything back?

Yes, as long as the object is narrower at the bottom than it is higher up. The inside of a 13.8 in hexagon opens to about 12.4 in across at mid-height, roughly double its floor, so foliage, a flared rim or the belly of a bowl can spread far wider than the base carrying it.

That is the whole difference between a tapered nursery pot and a straight-sided box. The HC Companies puts a number one nursery container at roughly 6 to 7 inches in diameter and 6 to 8 inches in height, and the diameter quoted there is the rim. The base under it is narrower. Measure the base and the pot drops straight in; measure the rim and you talk yourself out of a pot that would have fitted.

Two limits refuse to move. Every module is 3.5 in (9 cm) deep, so anything bigger front-to-back overhangs no matter how generous the width looks. And the modules have no back panel, so whatever you stand inside is seen from behind and has nothing to lean against. A photograph in a hexagon needs to be a photograph you are happy to see the back of.

When should a piece go on a straight ledge instead?

Whenever the base is wider than the hexagon floor, or the object is taller than the inside height. Houseland's three straight ledges are 19.7 in (50 cm) long and 3.5 in (9 cm) deep, the same depth as the hexagons, so the only thing that changes is that the edge runs straight instead of tapering away under your object.

Weight is not what decides it. Houseland rates every module in the set at up to 11 lb (5 kg) per piece, hexagon and ledge alike, so a hexagon does not carry less than a ledge, it simply fits less. What a wall will take is a separate question from what a module will take, and it is worked through in how much weight a wall shelf holds.

Books show the split most clearly. A row of spines standing up needs a straight run, and on the 13.8 in hexagon you get about 6.2 in of straight run, which is a handful of paperbacks before the taper starts pushing the outer ones over. Laying them flat inside the module works far better, and stacking books horizontally in a wall module goes through what that costs you.

What I'd do

Buy the object to the floor measurement and put one thing in each hexagon. On the 13.8 in module that is a single pot or one upright frame; on the 9.8 in module it is one candle and a lot of deliberate empty air, which reads as composed rather than as a shelf you failed to fill.

Then let the corners do decorative work rather than load work. A trailing stem, a sprig or a short run of beads spilling over the lower edge fills the taper without having to stand in it, and it hides the joint line while it is there. If the corner joints themselves are what you are worried about, whether hexagon corners show their brad nails settles that separately. The rest of the range sits in wall shelves.

Measure before you order rather than after it arrives. A 6.2 in floor is the difference between a module that holds your ceramic and a module that holds a tea light, and that figure appears on no listing anywhere.

Shop wall shelves from Houseland

-20%9-Piece Pine Hexagon Wall Shelf Setfrom $165.50$206.88-20%6-Piece Rounded Pine Box Wall Shelvesfrom $160.78$200.96-20%6-Piece Pine Cube and Ledge Wall Shelvesfrom $152.00$190.00-20%6-Piece Staggered Pine Wall Shelvesfrom $151.15$188.94-20%6-Piece Pine Honeycomb Wall Shelvesfrom $146.43$183.03-20%5-Piece Matte Black Wall Shelf Setfrom $155.59$194.49

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