Forty-eight inches: two part numbers, and a corner that undercuts the cupboard
Reviewed September 2026 · Captivating Cabinets
The base board ends here, and it ends with two part numbers. GN B48 is $815.75 and GN BLB48/51 is $767.00 — which means the corner box, the more complicated object by some distance, costs $48.75 less than the plain one. That is the first of three oddities at this width, and together they say something useful about how a cabinet is actually priced.
Three prices that do not behave
Set the top of the ladder out and the anomalies are obvious.
| Width | Standard base | Blind corner | Sink base |
|---|---|---|---|
| 36 inches | GN B36 $676.00 | GN BLB36/39 $614.25 | GN SB36 $490.75 |
| 39 inches | GN B39 $718.25 | GN BLB39/42 $685.75 | GN SB39 $526.50 |
| 42 inches | GN B42 $757.25 | GN BLB42/45 $767.00 | GN SB42 $572.00 |
| 48 inches | GN B48 $815.75 | GN BLB48/51 $767.00 | not made |
Read the blind corner column. It climbs from $614.25 to $685.75 to $767.00 and then stops climbing — the 48-inch corner is exactly the same money as the 42-inch one, six inches wider, for nothing. Read the bottom row and the corner undercuts the plain base by $48.75, which happens nowhere else. And read the sink column, which simply ends: 42 inches is the widest sink base made, so a 48-inch stretch of wall cannot have a sink in one box.
The lesson underneath all three is the one that runs through the whole grid: you pay for openings, doors, drawers and mechanisms rather than for wall length. A blind corner has one opening where a standard base has a full face of doors and two working drawers, and that is where the money went.
The 48-inch corner, priced with and without its hardware
GN BLB48/51 at $767.00 is a blind corner reaching either 48 or 51 inches, depending how far it is pulled from the corner during install. Its pull-out units are GNK BPO-BLB48/51-L and GNK BPO-BLB48/51-R at $1,394.25 each — handed, like the 42/45 pair, and set by which wall the corner turns into rather than by preference.
So the corner costs $767.00 unfitted and $2,161.25 fitted, and the hardware is $627.25 more than the cabinet. That is a real decision rather than an upsell. Unfitted, a 48-inch blind corner is a large cavity with a chunk you can only reach by lying on the floor, and it is an excellent place for the things you touch twice a year — the roasting tin, the preserving pan, the slow cooker. Fitted, it is everyday storage. What it should never be is the everyday cupboard someone assumed would work out.
What forty-eight inches of plain base is for
GN B48 at $815.75 is a cupboard four feet wide with two doors on it, each one around twenty-four inches, and that is the constraint rather than the price. An open 24-inch door occupies most of a standard walkway, so this box belongs against a wall, on the outside face of an island, or under a window — anywhere with nothing opposite it. Check it against the aisle dimensions before drawing it into a galley.
What it gives in return is one uninterrupted interior four feet across, with no centre stile, on an 18-inch-deep adjustable shelf. That is the right cabinet for long flat things a divided run cannot take — table leaves, trays, cooling racks, a folding table, the chair cushions. And it is $149.50 less than closing the same 48 inches with an 18 and a 30 ($409.50 plus $555.75, $965.25), which is the rare case where the wide box is both cheaper and better.
The alternative worth weighing is drawers. Nothing at 48 inches has any, so 48 inches of drawer means two banks — GN DB24 twice at $705.25 each, $1,410.50 — which is $594.75 more than the plain box and an entirely different cabinet. On an island back, we would take the drawers. On a wall behind a dining table, the single wide box every time.
Common questions
- What is the widest base cabinet made?
- Forty-eight inches, in two configurations: GN B48, the standard base at $815.75, and GN BLB48/51, a blind corner at $767.00. No sink base, drawer bank or full-height door box is made this wide.
- Why does the 48-inch corner cost less than the 48-inch base?
- Because price follows openings and mechanisms rather than wall length. The blind corner has a single opening; the standard base has a full face of doors plus two working drawers with runners.
- How much is the pull-out for a 48-inch blind corner?
- GNK BPO-BLB48/51-L and GNK BPO-BLB48/51-R are $1,394.25 each. Fitted, the corner comes to $2,161.25 — the hardware costs $627.25 more than the cabinet.
- Is one 48-inch cabinet cheaper than two smaller ones?
- Here, yes. GN B48 at $815.75 is $149.50 less than an 18 plus a 30 covering the same run. It is also the only way to get a four-foot interior with no stile down the middle.
- Can I get a 48-inch sink base?
- No. The sink base family ends at 42 inches with GN SB42 at $572.00. A wider sink run needs a narrower sink cabinet flanked by other boxes or by filler.
Keep reading
The guides behind the numbers on this page.
- Corner base cabinets
Every corner box in the collection, blind and otherwise, with prices.
- Pull-out organiser cabinets
The handed 48/51 units, and what else the pull-out board offers.
- Kitchen dimensions to settle before buying cabinets
The aisle and walkway numbers a 24-inch door has to clear.
- Base cabinets for this finish
The whole base board, from the 9-inch box to these two.
- The 42-inch base width
One step down, where the sink base family still exists.
- Fabuwood cabinets price list
Wider pricing context for the anomalies in the table above.
- Free 3D kitchen design
Worth drawing a four-foot pair of doors before ordering them.