A three-piece suit takes about 4 to 4½ yards of 58- or 60-inch cloth, or 4¼ to 4⅞ yards at 54 inches. Order 4½ yards for a standard size and you will have jacket, trousers and waistcoat covered. For an exact figure from your own measurements, use the calculator.
The waistcoat adds less than most people expect — roughly a quarter of a yard over the same suit without it. It is a short garment, and its pieces slot into gaps the jacket and trouser layout has already paid for.
| Size | 60″ | 58″ | 54″ |
|---|---|---|---|
| 36R | 3.8 yd | 3.9 yd | 4.1 yd |
| 38R | 4.0 yd | 4.1 yd | 4.2 yd |
| 40R | 4.2 yd | 4.3 yd | 4.7 yd |
| 42R | 4.3 yd | 4.3 yd | 4.8 yd |
| 44R | 4.4 yd | 4.4 yd | 4.9 yd |
Regular lengths, plain cloth, flat-front trousers, no turn-ups. Shell only — lining and canvas are separate, below. Round up when you order.
These are standard sizes on default settings. Bespoke work rarely is — for your client’s actual measurements, your cloth’s repeat and your own style options, run it through the calculator, which also draws the cutting layout.
Plain cloth is folded and cut two layers at a time, so mirrored pieces cost nothing. Patterned cloth is cut single-layer so the pattern runs true across every seam, and a three-piece has more seams to match than most garments — the waistcoat fronts sit directly below the jacket opening, where a mismatch is obvious.
| Cloth | Size 40R at 60″ | Extra |
|---|---|---|
| Plain | 4.18 yd | — |
| Stripe | 4.81 yd | +15% |
| Check / plaid | 5.22 yd | +25% |
A large repeat costs more than a small one, since you lose up to a full repeat at each seam zone.
Velvet, corduroy, moleskin, brushed flannel and any directional design must be cut with every piece the same way up, or the panels will shade differently once made up. That rules out nesting tapered pieces head to toe, which is how a cutter normally saves width.
On a three-piece the cost falls almost entirely on the trousers, whose legs can no longer nest. On a 44R that is about 1.2 yards.
The waistcoat back is traditionally cut in lining rather than shell cloth, which is why the lining figure rises while the shell barely moves. If you want a self-backed waistcoat in the suiting itself, add roughly another tenth of a yard of shell.
The panel widths behind these numbers were cross-checked against Winifred Aldrich's Metric Pattern Cutting for Menswear and Alan Poulin's Tailoring Suits the Professional Way, then laid out piece by piece across the chosen cloth width to see how many lengths the layout actually needs.
They are estimates and should be treated as such — seam allowances, house style and a cutter's own habits all move the number. What they will not do is guess: every figure here comes from an actual arrangement of actual pattern pieces.
Calculate your exact yardage →