[{"data":1,"prerenderedAt":615},["ShallowReactive",2],{"i-lucide:chevron-down":3,"i-lucide:arrow-right":8,"i-lucide:menu":10,"i-lucide:map-pin":12,"i-lucide:arrow-up-right":14,"i-lucide:message-circle":16,"i-lucide:mail":18,"i-lucide:x":20,"blog-\u002Fblog\u002Fhow-much-fabric-does-a-bag-need":22},{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":7},0,24,false,"\u003Cpath fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"m6 9l6 6l6-6\"\u002F>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":9},"\u003Cpath fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M5 12h14m-7-7l7 7l-7 7\"\u002F>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":11},"\u003Cpath fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M4 5h16M4 12h16M4 19h16\"\u002F>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":13},"\u003Cg fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\">\u003Cpath d=\"M20 10c0 4.993-5.539 10.193-7.399 11.799a1 1 0 0 1-1.202 0C9.539 20.193 4 14.993 4 10a8 8 0 0 1 16 0\"\u002F>\u003Ccircle cx=\"12\" cy=\"10\" r=\"3\"\u002F>\u003C\u002Fg>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":15},"\u003Cpath fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M7 7h10v10M7 17L17 7\"\u002F>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":17},"\u003Cpath fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M2.992 16.342a2 2 0 0 1 .094 1.167l-1.065 3.29a1 1 0 0 0 1.236 1.168l3.413-.998a2 2 0 0 1 1.099.092a10 10 0 1 0-4.777-4.719\"\u002F>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":19},"\u003Cg fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\">\u003Cpath d=\"m22 7l-8.991 5.727a2 2 0 0 1-2.009 0L2 7\"\u002F>\u003Crect width=\"20\" height=\"16\" x=\"2\" y=\"4\" rx=\"2\"\u002F>\u003C\u002Fg>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":21},"\u003Cpath fill=\"none\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M18 6L6 18M6 6l12 12\"\u002F>",{"id":23,"title":24,"body":25,"date":592,"description":593,"extension":594,"image":595,"imageAlt":596,"keywords":597,"meta":604,"navigation":605,"path":606,"readingTime":607,"seo":608,"stem":609,"tags":610,"__hash__":614},"blog\u002Fblog\u002Fhow-much-fabric-does-a-bag-need.md","How Much Fabric Does a Bag Need? Consumption, Waste and Cost per Bag Explained",{"type":26,"value":27,"toc":566},"minimark",[28,32,37,40,44,47,147,150,154,157,160,164,171,177,183,187,190,252,255,259,262,278,281,285,288,306,309,313,316,331,334,338,341,402,405,409,429,433,436,440,472,476,509,513,526,530,535,538,542,545,549,552,556,559,563],[29,30,31],"p",{},"A fabric quote says $1.38 per metre. A bag brief says 2,000 backpacks. Between those two numbers sits the one that actually decides the fabric budget - metres per bag - and it is the number most inquiries skip. This guide works through it the way our costing desk does: pattern area, waste, width, allowances, and the metre count that goes on the purchase order.",[33,34,36],"h2",{"id":35},"why-consumption-matters-more-than-price-per-metre","Why consumption matters more than price per metre",[29,38,39],{},"Two quotes for \"600D PU, black\": $1.32\u002Fm at 57\" and $1.38\u002Fm at 60\". The cheaper one costs more. On a backpack marker the 60\" roll yields about 5% more usable panels per metre, so the fabric line per bag lands at $2.06 on the \"expensive\" roll and $2.11 on the \"cheap\" one. Per-metre price without width and consumption is a number that cannot be compared.",[33,41,43],{"id":42},"fabric-consumption-by-bag-type","Fabric consumption by bag type",[29,45,46],{},"Typical pattern areas for body fabric only (linings and mesh separate), measured on our markers:",[48,49,50,66],"table",{},[51,52,53],"thead",{},[54,55,56,60,63],"tr",{},[57,58,59],"th",{},"Bag type",[57,61,62],{},"Body fabric area",[57,64,65],{},"Metres per bag (58\", 15% waste)",[67,68,69,81,92,103,114,125,136],"tbody",{},[54,70,71,75,78],{},[72,73,74],"td",{},"Shopping tote 38 x 42 cm",[72,76,77],{},"0.55 m2",[72,79,80],{},"0.43 m",[54,82,83,86,89],{},[72,84,85],{},"School backpack 25 L",[72,87,88],{},"1.6 m2",[72,90,91],{},"1.25 m",[54,93,94,97,100],{},[72,95,96],{},"Daypack 30 L",[72,98,99],{},"1.9 m2",[72,101,102],{},"1.49 m",[54,104,105,108,111],{},[72,106,107],{},"Laptop backpack 20 L",[72,109,110],{},"1.7 m2",[72,112,113],{},"1.33 m",[54,115,116,119,122],{},[72,117,118],{},"Duffel 50 L",[72,120,121],{},"2.4 m2",[72,123,124],{},"1.88 m",[54,126,127,130,133],{},[72,128,129],{},"Tactical pack 35 L",[72,131,132],{},"2.6 m2",[72,134,135],{},"2.03 m",[54,137,138,141,144],{},[72,139,140],{},"Cooler bag 20 L",[72,142,143],{},"1.1 m2",[72,145,146],{},"0.86 m",[29,148,149],{},"Treat the table as a starting range; a boxier pattern with fewer curved panels cuts tighter, a fashion silhouette with shaped gussets cuts looser.",[33,151,153],{"id":152},"the-formula","The formula",[29,155,156],{},"Metres per bag = pattern area (m2) x (1 + waste rate) \u002F cuttable width (m)",[29,158,159],{},"For a 30 L daypack: 1.9 m2 x 1.15 \u002F 1.47 m = 1.49 m. Multiply by the order quantity, then add roll-end and defect allowances (next sections) and you have the number for the purchase order.",[33,161,163],{"id":162},"the-three-multipliers-that-move-the-number","The three multipliers that move the number",[29,165,166,170],{},[167,168,169],"strong",{},"1. Cutting waste."," Simple rectangular panels (totes, duffel bodies) mark at 8-12% waste. Curved backpack panels, shaped gussets and pocket flaps push 15-22%. Fashion silhouettes with large curved pieces can hit 25%. The marker software reports the exact figure; ask the factory for the marker efficiency, not an estimate.",[29,172,173,176],{},[167,174,175],{},"2. Cuttable width."," Fabric is sold on the full width, cut on the usable width. A roll quoted at 57\u002F58\" with 1\" of selvedge on each side cuts at 55-56\". Specify cuttable width on the purchase order; the inch you lose is 1.7% of every metre you buy.",[29,178,179,182],{},[167,180,181],{},"3. Directional patterns and prints."," Camouflage, directional weaves and placed logos force one-way markers. Efficiency drops 5-8 points because panels cannot be rotated to nest. Solid colours and non-directional textures mark the tightest.",[33,184,186],{"id":185},"width-changes-the-metre-count-more-than-price-does","Width changes the metre count more than price does",[29,188,189],{},"The same 2,000-bag daypack programme on different roll widths:",[48,191,192,208],{},[51,193,194],{},[54,195,196,199,202,205],{},[57,197,198],{},"Roll width",[57,200,201],{},"Cuttable width",[57,203,204],{},"Metres for 2,000 bags",[57,206,207],{},"Fabric cost at $1.38\u002Fm",[67,209,210,224,238],{},[54,211,212,215,218,221],{},[72,213,214],{},"36\" (0.91 m)",[72,216,217],{},"0.89 m",[72,219,220],{},"~4,940 m",[72,222,223],{},"~$6,820",[54,225,226,229,232,235],{},[72,227,228],{},"58\" (1.47 m)",[72,230,231],{},"1.42 m",[72,233,234],{},"~3,080 m",[72,236,237],{},"~$4,250",[54,239,240,243,246,249],{},[72,241,242],{},"60\" (1.52 m)",[72,244,245],{},"1.47 m",[72,247,248],{},"~2,970 m",[72,250,251],{},"~$4,100",[29,253,254],{},"A 36\" roll is not 60% cheaper per metre, so it is never cheaper per bag. The lesson scales: always ask for the widest cuttable width the construction is milled in before comparing quotes.",[33,256,258],{"id":257},"roll-end-and-defect-allowances","Roll-end and defect allowances",[29,260,261],{},"Markers assume a continuous roll; real rolls are not. Add two allowances to the calculated total:",[263,264,265,272],"ul",{},[266,267,268,271],"li",{},[167,269,270],{},"Roll ends."," Every roll has 1-2 m of unusable end (joins, creases, inspection cuts). At 50-100 m per roll that is 2% of fabric. Shorter rolls waste more; specify a minimum roll length.",[266,273,274,277],{},[167,275,276],{},"Defects."," Even A-grade cloth carries 2-4 defect points per 100 m. Cutting around them loses 1-3%. Our inspection reports give defects per roll so the allowance is calculated, not guessed.",[29,279,280],{},"Rule of thumb: order 4-5% over the marker total on standard goods, 6-8% on prints and heavy coatings. Running 2% short on a dye lot costs more than the entire allowance - the re-dye comes with a 1,000 m MOQ.",[33,282,284],{"id":283},"worked-costing-3000-shopping-totes","Worked costing: 3,000 shopping totes",[29,286,287],{},"Pattern 0.55 m2, rectangular panels, 10% waste, 58\" roll cutting at 1.42 m:",[263,289,290,293,296,303],{},[266,291,292],{},"0.55 x 1.10 \u002F 1.42 = 0.426 m per bag",[266,294,295],{},"x 3,000 bags = 1,278 m",[266,297,298],{},[263,299,300],{},[266,301,302],{},"4% roll-end and defect allowance = 1,330 m",[266,304,305],{},"Order 1,350 m (27 rolls of 50 m); at $1.38\u002Fm = $1,863, or $0.62 per bag",[29,307,308],{},"The order clears the 1,000 m custom-colour MOQ with room to spare, so the programme can carry a Pantone body colour at no extra fabric cost.",[33,310,312],{"id":311},"worked-costing-800-laptop-backpacks","Worked costing: 800 laptop backpacks",[29,314,315],{},"Pattern 1.7 m2, shaped panels, 18% waste, 58\" roll:",[263,317,318,321,324],{},[266,319,320],{},"1.7 x 1.18 \u002F 1.42 = 1.41 m per bag",[266,322,323],{},"x 800 bags = 1,130 m body fabric",[266,325,326],{},[263,327,328],{},[266,329,330],{},"5% allowance = 1,187 m, order 1,200 m",[29,332,333],{},"This programme sits just above MOQ on the body fabric but far below it on the 300D lining (about 560 m). The lining goes stock colour; the body can be custom. Costing both fabrics separately is what makes that decision visible.",[33,335,337],{"id":336},"the-fabrics-buyers-forget-to-count","The fabrics buyers forget to count",[29,339,340],{},"Body fabric is rarely the whole bill of materials. A 30 L daypack also consumes:",[48,342,343,356],{},[51,344,345],{},[54,346,347,350,353],{},[57,348,349],{},"Component",[57,351,352],{},"Fabric",[57,354,355],{},"Approx. area",[67,357,358,369,380,391],{},[54,359,360,363,366],{},[72,361,362],{},"Lining",[72,364,365],{},"210D or 300D PU",[72,367,368],{},"2.2 m2",[54,370,371,374,377],{},[72,372,373],{},"Back panel and straps",[72,375,376],{},"Air mesh",[72,378,379],{},"0.4 m2",[54,381,382,385,388],{},[72,383,384],{},"Base reinforcement",[72,386,387],{},"1680D or 1000D",[72,389,390],{},"0.35 m2",[54,392,393,396,399],{},[72,394,395],{},"Binding and piping",[72,397,398],{},"Same or contrast",[72,400,401],{},"6-8 linear m",[29,403,404],{},"Lining often exceeds body fabric in area and is routinely left off first-round costings. Ask for the full material list with areas; a complete BOM is also the fastest way to spot a factory that has not actually made a marker yet.",[33,406,408],{"id":407},"converting-units-without-losing-metres","Converting units without losing metres",[263,410,411,417,423],{},[266,412,413,416],{},[167,414,415],{},"Yards to metres:"," 1 yd = 0.914 m. A US quote in yards reads 9% bigger than it is.",[266,418,419,422],{},[167,420,421],{},"Kilograms to metres:"," metres = kg x 1,000 \u002F (gsm x width in m). A 100 kg roll of 300 gsm at 1.47 m is 227 m, not 333 m - the width is in the denominator twice as often as buyers expect.",[266,424,425,428],{},[167,426,427],{},"Square metres to metres:"," divide by cuttable width, not full width.",[33,430,432],{"id":431},"planning-the-dye-lot-around-consumption","Planning the dye lot around consumption",[29,434,435],{},"Once metres per bag is known, work backwards to the order quantity that fills a dye lot efficiently. At 1.49 m per bag, 1,000 m dyes 670 bags; ordering 650 bags of a custom colour wastes 3% of the lot, ordering 700 falls 45 m short. Nudging a programme by 30-50 units to land on whole dye lots is a conversation worth having before the purchase order, not after the mill asks why the re-order is 60 m.",[33,437,439],{"id":438},"common-consumption-mistakes-we-see-on-inquiries","Common consumption mistakes we see on inquiries",[263,441,442,448,454,460,466],{},[266,443,444,447],{},[167,445,446],{},"Quoting bag count without a pattern."," \"2,000 backpacks\" ranges from 2,500 to 4,500 m depending on size and silhouette. Send the pattern or at least the finished dimensions.",[266,449,450,453],{},[167,451,452],{},"Using full width in the maths."," The selvedge is not fabric you can cut. 2% every time.",[266,455,456,459],{},[167,457,458],{},"Forgetting the second colour."," Two-tone bags split the consumption across two dye lots; both must clear MOQ or one goes stock.",[266,461,462,465],{},[167,463,464],{},"Ordering exactly the marker total."," The first roll end eats the margin; the first defect stops the line.",[266,467,468,471],{},[167,469,470],{},"Comparing quotes at different widths."," The most expensive mistake on this list, and the most common.",[33,473,475],{"id":474},"how-this-connects-to-the-rest-of-the-fabric-decision","How this connects to the rest of the fabric decision",[29,477,478,479,484,485,489,490,494,495,502,503,508],{},"Consumption sets the budget, but it also decides whether custom colour is reachable (",[480,481,483],"a",{"href":482},"\u002Fblog\u002Ffabric-moq-lab-dips-lead-times","MOQ and lab dips","), whether a denier step is affordable per bag (",[480,486,488],{"href":487},"\u002Fblog\u002F600d-vs-900d-vs-1680d-polyester-bags","600D vs 900D vs 1680D","), and what the ",[480,491,493],{"href":492},"\u002Fblog\u002Fhow-to-read-bag-fabric-spec-sheet","spec sheet"," must state about cuttable width. For the finished bag, our sister factory's ",[480,496,501],{"href":497,"rel":498,"target":500},"https:\u002F\u002Fsenszxfactory.com\u002Fcustom-backpack\u002F",[499],"noopener","_blank","custom backpack"," and ",[480,504,507],{"href":505,"rel":506,"target":500},"https:\u002F\u002Fsenszxfactory.com\u002Fcustom-tote-bags\u002F",[499],"custom tote"," teams cost from the same markers - one consumption figure, one supply chain.",[33,510,512],{"id":511},"get-a-consumption-figure-for-your-bag","Get a consumption figure for your bag",[29,514,515,516,520,521,525],{},"Send the pattern, finished dimensions or a reference sample and we return metres per bag, a full-BOM fabric list and a dye-lot plan within 12 hours - ",[480,517,519],{"href":518},"\u002Fcontact","request it here"," or browse the ",[480,522,524],{"href":523},"\u002Ffabrics","fabric library"," for widths and stock colours first.",[33,527,529],{"id":528},"buyer-faq","Buyer FAQ",[531,532,534],"h3",{"id":533},"how-much-fabric-do-i-need-for-a-backpack","How much fabric do I need for a backpack?",[29,536,537],{},"A 25-30 L backpack uses 1.6-1.9 m2 of body fabric, or about 1.25-1.5 m of 58\" roll per bag after 15% cutting waste. Add 2.2 m2 of lining and 0.4 m2 of mesh for the full bill of materials.",[531,539,541],{"id":540},"how-much-fabric-does-a-tote-bag-use","How much fabric does a tote bag use?",[29,543,544],{},"A standard 38 x 42 cm tote with a 10 cm gusset uses about 0.55 m2 of body fabric - roughly 0.43 m of a 58\" roll per bag at 10% waste, or 2,300 totes per 1,000 m.",[531,546,548],{"id":547},"what-is-a-normal-cutting-waste-percentage-for-bags","What is a normal cutting waste percentage for bags?",[29,550,551],{},"8-12% for rectangular panels (totes, duffels), 15-22% for shaped backpack panels, up to 25% for fashion silhouettes with large curves. Directional prints add 5-8 points.",[531,553,555],{"id":554},"how-do-i-convert-fabric-kilograms-to-metres","How do I convert fabric kilograms to metres?",[29,557,558],{},"Metres = kilograms x 1,000 \u002F (gsm x width in metres). A 100 kg roll of 300 gsm fabric at 1.47 m width is about 227 m.",[531,560,562],{"id":561},"how-much-extra-fabric-should-i-order","How much extra fabric should I order?",[29,564,565],{},"4-5% over the marker total for standard solids, 6-8% for prints and heavy coatings, covering roll ends and defects. Running short on a dye lot triggers a new 1,000 m minimum.",{"title":567,"searchDepth":568,"depth":568,"links":569},"",2,[570,571,572,573,574,575,576,577,578,579,580,581,582,583,584],{"id":35,"depth":568,"text":36},{"id":42,"depth":568,"text":43},{"id":152,"depth":568,"text":153},{"id":162,"depth":568,"text":163},{"id":185,"depth":568,"text":186},{"id":257,"depth":568,"text":258},{"id":283,"depth":568,"text":284},{"id":311,"depth":568,"text":312},{"id":336,"depth":568,"text":337},{"id":407,"depth":568,"text":408},{"id":431,"depth":568,"text":432},{"id":438,"depth":568,"text":439},{"id":474,"depth":568,"text":475},{"id":511,"depth":568,"text":512},{"id":528,"depth":568,"text":529,"children":585},[586,588,589,590,591],{"id":533,"depth":587,"text":534},3,{"id":540,"depth":587,"text":541},{"id":547,"depth":587,"text":548},{"id":554,"depth":587,"text":555},{"id":561,"depth":587,"text":562},"2026-10-05","Price per metre is only half the fabric cost. This guide shows how to turn a pattern into metres per bag - with consumption tables by bag type, the cutting-waste and width multipliers, worked costings for backpacks and totes, and the allowances that keep a dye lot from running short.","md","\u002Fimg\u002Fmill\u002Ffabric-roll-warehouse-racks.webp","Fabric rolls stacked on warehouse racks ready for cutting",[598,599,600,601,602,603],"fabric consumption per bag","how much fabric for a backpack","fabric cost per bag","cutting waste percentage","fabric yield calculation","bag fabric costing",{},true,"\u002Fblog\u002Fhow-much-fabric-does-a-bag-need",8,{"title":24,"description":593},"blog\u002Fhow-much-fabric-does-a-bag-need",[611,612,613],"costing","consumption","sourcing","7oaPDFQY1s7YDB4dHO5KM4u0jpYFVlWUOXdLAy2018w",1791162132910]