How to Measure and Order a Piano Hinge (Kabza) in Pakistan

To order a piano hinge, give the supplier its length, the width measurement you mean, finish, quantity in pieces and intended use. For a replacement, include photographs of the existing hinge and its screw holes. A name such as piano kabza or piano qabza identifies the type, but does not identify an exact size or fitting.

This guide focuses on measuring and ordering a continuous piano hinge. If you are choosing between concealed, standard and continuous hinges, start with our cabinet hinge types guide.

The measurements to send first

• Length: measure along the hinge, parallel to the pin. Record the full length you need, with the unit.
• Overall open width: with the hinge open flat, measure across both leaves, from one outside edge to the other. Label this as open width.
• Leaf width: if you measure only one leaf, say so. It is a different measurement from overall open width.
• Fixing details: show the existing holes and mounting surfaces. For a replacement, include hole spacing where the existing fixing positions must match.

OneMonroe's hinge terminology reference distinguishes leaf length, leaf width and overall open width. Use those labels in your enquiry instead of an unexplained number. A photograph with a ruler across the hinge can make the intended measurement clearer.

Also record the door, lid or panel dimensions and material, how the hinge mounts, and the expected use. Ask your fitter to check clearance and fixing suitability if the replacement differs from the original. A matching length alone does not establish a matching fitting.

What does the 6 ft, 32 mm listing tell you?

MJ Trader lists a 6 ft Continuous Piano Hinge (Kabza), 32 mm. Its catalogue options include Brown and Champagne finishes, with 300, 350, 400 and 465 gram variants. The selling unit is Piece, and the pack detail is 25 pieces.

The listing states a 32 mm width, but does not define the measurement convention. Ask whether 32 mm is the overall open width or a leaf measurement before matching it to your installation. Do not compare it with a measurement of your folded hinge without explaining how you measured.

The catalogue also asks buyers to confirm brand and material options. A colour name does not establish the metal, material grade, coating specification or corrosion suitability. Include those requirements in your enquiry if they matter for your application.

Six feet is approximately 1,829 mm. If your fitting needs a precise finished length, state that length in millimetres and ask for confirmation of the supplied dimensions and any applicable tolerance.

Gram options are not a stated door-load rating

The product's gram labels are listed weight options. The catalogue does not provide an allowable door weight or a tested load rating for those variants. A 465 gram label does not mean a 465 kg capacity, and it is not enough information to select a hinge for a heavy door.

For a load-critical requirement, request the exact model's technical information and share the door or panel weight, dimensions, mounting materials and usage. A manufacturer may specify material thickness, fasteners, clearances and installation conditions alongside a door-weight limit. Hager's 790-905 technical page illustrates such model-specific information; its ratings do not apply to MJ Trader's listed hinge.

For fire-rated, escape-route or other specified door assemblies, use the approved assembly's hardware requirements and the relevant manufacturer's instructions. Ask for evidence for the exact proposed product rather than inferring suitability from the phrase continuous hinge.

Match a replacement without guessing from the colour

Before ordering a replacement, prepare a small reference set:

• One photograph of the whole existing hinge, showing how it mounts.
• A length measurement with units, and a separate open-width measurement.
• Close photographs of the hinge barrel, screw holes and any model marking.
• The required finish and any known material or grade requirement.
• Door or panel dimensions, material and weight if known; flag unknown details.
• Whether you need an exact replacement or can approve an alternative with different holes or dimensions.

If your existing screw holes must be reused, mention that explicitly. Have the fitter check the proposed hole pattern and mounting position before accepting an alternative. Photographs help identification, but cannot confirm a material grade or a load rating by themselves.

Can a longer hinge be cut to fit?

Ask whether the exact hinge model can be shortened and what must happen to its pin, end retention and fixing pattern. Confirm the finished length and installation requirements with your fitter. Do not assume every continuous hinge is suitable for the same cutting method.

If you need a cut length supplied, include it in the request and ask whether that service is available. MJ Trader's catalogue does not establish a cutting service or a made-to-length offer for this product. Buying a longer piece does not by itself confirm that the finished fitting will be suitable.

State pieces and packs clearly

For this listing, request your quantity in pieces. The pack detail says 25 pieces; write “25 pieces” if that is your requirement, rather than an ambiguous “25 packs”. Ask the supplier to confirm any pack or order restrictions for your chosen variant.

Keep different finishes or gram variants on separate lines. For example, a request can say “6 ft × 32 mm listing, Brown, 350 gram option, 10 pieces; please confirm width convention, material and suitability for the attached fitting.” This is an example enquiry, not a stock, price or suitability promise.

A ready-to-use piano hinge enquiry

Copy these fields into your WhatsApp message, email or quotation request:

• Product reference: 6 ft Continuous Piano Hinge (Kabza), 32 mm, or the exact alternative needed.
• Required length and units:
• Required overall open width, or labelled leaf measurement:
• Finish and listed gram variant, if selected:
• Required material/brand or model, if specified:
• Quantity in pieces, with each variant on its own line:
• Door/panel application and dimensions; weight if known:
• Existing-hole matching or other fitting requirements:
• Photographs, drawing or approved specification:
• Alternatives acceptable: yes / only after approval / exact item required.
• Delivery city and address, or preferred collection branch:
• Required date and company quotation/onboarding details, if applicable:

Use Request Quote for an itemised enquiry, or Business Supply for formal procurement requirements. You can email drawings or a BOQ to adminmjtrader@gmail.com using the quotation email action below. Our RFQ and BOQ checklist explains how to prepare a multi-item request.

MJ Trader serves companies and customers across Pakistan from its two Karachi shops. Confirm the selected variant, availability, complete price, delivery charges and timing before ordering or travelling to collect. See delivery and collection information.

Browse and confirm the exact fitting

Open the 6 ft, 32 mm piano hinge product page to choose a listed option and quantity. You can also review the continuous piano hinge listing and Door Hardware category. Share the product link with your measurement notes so the supplier knows which listing you mean.

Technical references explain general terminology and the need for model-specific information. They do not certify the material, capacity or suitability of the products in this catalogue. The exact quoted item and your installation requirements must be confirmed together.