Plan the finished face with the person doing the stretching
Ordering rolled canvas is a handover between two different jobs. The printer puts your supplied design onto the chosen canvas; a separate stretcher decides how that material will sit over bars, around corners and behind the finished piece. The most useful first step is therefore not adding an arbitrary border in an editing app. Ask the person who will stretch the print for the intended visible face dimensions and their required material allowance on every edge. Get those requirements before a file is printed, rather than discovering afterwards that the chosen image uses the space they need to grip.
Golden Ads' custom rolled-canvas service is print only. Stretcher bars, stretching, hand-finishing, protective coatings, hanging fittings and installation are not included. The existing wall-art collection is a separate offer, so its presentation options and margins should not be treated as the specification for a customer-uploaded canvas. If you want a ready-to-hang result, settle the external finishing arrangement and total budget first. A photograph of a stretched display is not a substitute for those practical measurements.
Give each of the three areas a different name
Use visible face for the area intended to be seen from the front. Use side wrap for material that travels over the sides of the stretcher. Use gripping allowance for the material the stretcher needs beyond that, normally towards the back. These areas do different things, even if they are represented by one continuous border in the file. A white decorative border intended to remain visible on the front is a fourth design choice, not automatically a usable stretching allowance.
A stretcher's bar depth alone does not determine the complete border requirement. The route around the bar, corner construction, equipment and method of securing the material matter as well. Do not calculate an allowance from a photograph of the bars or a remembered rule from another order. Ask for one unambiguous total allowance per edge, with any visible border identified separately. If the finisher uses different terminology, draw the regions and agree what their measurements describe. That short exchange prevents two people using the word border to mean different parts of the finished object.
Work through a dimension example before making the file
Suppose the agreed visible face is 400 by 600 millimetres, and your external stretcher specifies a total additional allowance of 50 millimetres on every side. The complete supplied rectangle would then be 500 by 700 millimetres: add twice the allowance to both face dimensions. This is an arithmetic example, not a recommendation that 50 millimetres suits your bars, and not confirmation that a particular print size is available. The actual finisher's figures must replace the example.
Draw an outer rectangle labelled 500 by 700 and an inner rectangle labelled 400 by 600. Put the top of the photograph at the top of the drawing. Now check whether any number on the order refers to the outer material or only the inner image. If a quote says 400 by 600 but the planned file includes 50-millimetre allowances, the mismatch needs resolving before payment. Also check the unit: a value entered as centimetres instead of millimetres can produce a completely different job without changing the apparent proportions.
Choose what should appear around the sides deliberately
There is no single correct visual treatment for a canvas side. A plain border may be appropriate when the front image must remain intact. A continuation of the photograph may be possible when there is genuinely expendable content around its edges. A mirrored edge is a deliberate alteration that repeats nearby image content; it should not be silently substituted for missing picture area. Decide with your stretcher which appearance you want, and prepare that appearance explicitly if it is part of the supplied design.
Look particularly closely at faces, hands, signatures, lettering and strong horizontal lines. A photograph that looks comfortably composed as a flat rectangle can become awkward if essential details disappear around the side. Mark the intended front boundary on a working copy and inspect all four edges. Keep those planning guides out of the final production file unless the printer has specifically requested them. If there is not enough usable content, change the composition yourself or discuss another presentation rather than stretching the image sideways to manufacture extra material.
Extend the document without enlarging the photograph by accident
Adobe distinguishes changing canvas size from changing image size in Photoshop. Increasing the document canvas adds workspace around the existing picture; it does not itself add useful detail to the photograph. Work on a duplicate, choose the correct measurement units and check where the anchor places the image. For a symmetrical allowance, the photograph normally needs to stay centred. Inspect the result rather than assuming every new strip has the intended colour or content, especially when the document includes transparent layers.
For a raster file prepared at a chosen pixel density, the extra pixel count also needs to be allocated correctly. At 200 pixels per inch, a 50-millimetre allowance corresponds to approximately 394 pixels per edge, because 50 divided by 25.4 and multiplied by 200 is about 394. Adding that amount to the total width would provide only half the intended allowance on each side. This calculation explains the file geometry; it does not make 200 ppi a universal production requirement or improve an already weak photograph.
Decide whether the allowance lives in the file or the order
Avoid adding the same border twice. One approach is to supply a finished file that already contains the agreed outer area, then specify its complete physical dimensions. Another is to supply only the image and request a supported border as part of the print specification. Those approaches are not interchangeable unless the meaning of the selected dimensions is clear. In Golden Ads' custom-print specification, a border uses space inside the selected overall rectangle; it must not be assumed to add extra material outside that rectangle.
Return to the example: an image-only file fitted into a 500 by 700 rectangle with 50 millimetres reserved on every edge leaves a 400 by 600 content area. A complete 500 by 700 file that already contains those margins should not receive a second 50-millimetre border. Read the actual saved specification and fitted image dimensions before proceeding. If the required allowance, edge artwork or overall dimensions are not supported, ask about the job rather than choosing a vaguely similar setting and expecting the printer to reconstruct your intentions.
Make handling instructions specific to the actual material
Canvas is a flexible coated material, not simply paper with a different name. PermaJet describes Neptune Natural Matt Canvas 400 as a textured matt inkjet canvas with a natural warm base. That description is relevant when assessing how the photograph will look, but it does not determine your stretcher's allowance or prove that a particular finishing treatment is suitable. The material actually selected and accepted for your order is the one that matters; a supplier's broad catalogue is not a live stock list.
Manufacturers publish material-specific handling advice. Canson's canvas guidance, for example, discusses drying, handling and mounting considerations for its own products. Do not turn one manufacturer's instruction into a universal drying time or a home varnishing recipe for every canvas. Ask the external finisher what information they need about the printed substrate and any treatments, and do not assume a protective coating has been applied. Keep the print clean and protected during transport, avoid folding it, and follow the packaging and handling advice supplied for the actual job.
Hand over one agreed drawing and one production version
A useful handover note identifies the approved filename, the outer supplied dimensions, the intended front dimensions, the allowance on each edge and the chosen side appearance. Add the orientation and number of copies. State who is responsible for stretching and whether the finisher has checked the proposed file geometry. Keep explanatory sketches separate from the production image so a measurement diagram is not accidentally printed as part of the design. Where several pictures are involved, give each a job reference rather than relying on near-identical filenames.
Before ordering, compare the final file against that note once more. Confirm that the image has not been cropped or distorted, the border has not been counted twice and the external stretcher has accepted the intended dimensions. Plan postal dispatch or Manchester collection by prior appointment around confirmed readiness, not an assumed finishing date. The result of this preparation is not a promise that every canvas will stretch perfectly. It is a clear division of responsibility that gives both printer and finisher the information needed to assess the job honestly.
Questions and answers
How much canvas should I leave for stretching?
Ask the external stretcher for their total allowance on each edge, including side wrap and gripping material. There is no single allowance that can safely be inferred from bar depth alone.
Does choosing rolled canvas include stretching or varnish?
No. Golden Ads' custom rolled-canvas offer is print only. Stretching, bars, coatings, hand-finishing and fittings must not be assumed to be included.
Should I add a white border inside the uploaded image?
Only if it is part of your agreed specification. Distinguish an embedded border from a border requested in the order, and avoid adding both unintentionally.
Can a mirrored edge replace missing image content automatically?
A mirrored edge changes the design by repeating picture content. It should be a deliberate choice you prepare and approve, not an undisclosed automatic substitute.