Staedtler Mars 561 98-1BK triangular scale ruler on its white and blue blistercard, red and green grooves, card printed 1:20 1:25 1:50 1:75 1:100 1:125 and Made in Germany
Staedtler Mars 561 reduction scale table listing which ratios appear on the DIN, 1, 2, 4 and 6 versions, from 1:2.5 up to 1:2500
Staedtler Made in Germany pictogram, a red, gold and black tick on a blue square above the words MADE IN GERMANY
Staedtler Mars 561 98-1BK triangular scale ruler on its white and blue blistercard, red and green grooves, card printed 1:20 1:25 1:50 1:75 1:100 1:125 and Made in Germany
Staedtler Mars 561 reduction scale table listing which ratios appear on the DIN, 1, 2, 4 and 6 versions, from 1:2.5 up to 1:2500
Staedtler Made in Germany pictogram, a red, gold and black tick on a blue square above the words MADE IN GERMANY
Staedtler Mars 561 98-1BK triangular scale ruler on its white and blue blistercard, red and green grooves, card printed 1:20 1:25 1:50 1:75 1:100 1:125 and Made in Germany
Staedtler Mars 561 reduction scale table listing which ratios appear on the DIN, 1, 2, 4 and 6 versions, from 1:2.5 up to 1:2500
Staedtler Made in Germany pictogram, a red, gold and black tick on a blue square above the words MADE IN GERMANY
Staedtler

Staedtler Mars Triangular Scale Ruler Version 1 561 98-1BK

Regular price
$23.34
Sale price
$23.34
Regular price
RRP $25.19
Or 4 payments of $5.84 with
Add items to a quote for bulk pricing, approvals, or purchase orders.

SKU: SR561 98-1BK

UPC: 4007817148075

MPN: 561 98-1BK

Six Building Plan Scales On One Triangular Ruler

Staedtler Mars 561 98-1BK is version 1 of the Mars triangular reduction scale ruler, carrying 1:20, 1:25, 1:50, 1:75, 1:100 and 1:125 on its three faces.

That group of ratios runs from close-up detail work at 1:20 out to whole-floor layouts at 1:125, which is why version 1 tends to sit on the desks of architecture and building design students. Turn the ruler to the next face and you read straight off the drawing in real-world units, with no mental arithmetic between scales.

Staedtler mould the 561 from solid white plastic and colour the grooves between the faces so each scale is quick to find. The ruler comes on a hangable blistercard that prints the six ratios on the front, and Staedtler state it is made in Germany.

Working at site or survey scales instead? Version 4 runs from 1:100 to 1:500, while the DIN version reaches down to 1:2.5 for detail drawings.

More in scale rulers, rulers and geometry, Staedtler geometry tools and Staedtler.

  • Version 1: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125
  • Triangular profile with 6 scales
  • Colour-coded grooves to find each scale
  • Solid white plastic, per Staedtler
  • Hangable blistercard printed with the scales
  • Made in Germany, as stated by Staedtler
  • Architecture and building design study
  • Reading and checking floor plans
  • Wall and joinery details at 1:20 or 1:25
  • Drafting offices and studios

Shipping

Shipping is kept simple with flat rates for selected areas and free shipping where applicable. Large, bulky, rural or out-of-area orders may require additional freight, and our team will contact you if this applies. For a more specific estimate, simply add this product to a quote or visit our shipping page.

Delivery Times

Melbourne, Sydney, Brisbane, Adelaide — 1 to 3 business days
Perth — 1 to 5 business days
Regional & Outer Areas — 3 to 7 business days

Returns

If you have questions about returns, please contact us or visit our returns page for full details.

Specifications

Brand: Staedtler

Range: Mars 561 reduction scale ruler

MPN: 561 98-1BK

Mega Code: SR561 98-1BK

Version: Version 1

Scales: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125

Profile: Triangular, 6 scales, colour-coded grooves

Material: Solid white plastic, per Staedtler

Packaging: Hangable blistercard of 1 ruler

Country of Manufacture: Germany, as stated by Staedtler

Staedtler Australia Unit: 1 blistercard, minimum order 1

Pack Size: 1

Unit: Each

EAN: 4007817148075

FAQs

Six: 1:20, 1:25, 1:50, 1:75, 1:100 and 1:125. Staedtler print the same list on the blistercard.
It suits architectural and building drawings, from wall details at 1:20 to floor plans at 1:100 or 1:125. For site plans, version 4 is the better fit.
No. Staedtler Australia do not state a length for the Mars 561, so we have not listed one.
One Mars 561 ruler on its blistercard. Staedtler Australia list it as one blistercard per unit.

Shipping & Delivery

Delivery time depends on your location, the size of your order, and the shipping option selected at checkout. For in-stock items, standard metro delivery in QLD, NSW and VIC is usually 1 to 7 business days. South Australia, Tasmania, Western Australia and the Northern Territory are generally 3 to 12 business days. Express delivery for eligible parcels under 3kg is usually 1 to 4 business days in QLD, NSW, ACT and VIC. Delivery estimates apply to in-stock items only and may vary due to carrier conditions or delays.

If you need to make a change to your order, please contact our team as soon as possible. Once an order has been processed or dispatched, changes may no longer be possible. You can contact us through our Contact Us page for assistance.

Mega Office Supplies ships orders Australia wide and occasionally internationally. The best avenue would be to contact us so we can customise a specific quote for you. Please note that associated international duties, taxes and levies will be the responsibility of the customer.

Returns, Refunds & Replacements

Mega Office Supplies accepts change-of-mind returns for unopened and unused products within 14 days from the invoice date, provided the item is returned in its original packaging and in resalable condition. Original shipping costs are not refundable, return shipping is the customer’s responsibility, and a restocking fee may apply depending on the product type and supplier. Some items, including electronics, assembled or installed furniture, food, beverages, medicines, custom-made products, and certain bulk or special-order items, are not eligible for return unless required under Australian Consumer Law.

If your order arrives faulty, damaged, or incorrect, please contact Mega Office Supplies as soon as possible. Where required under Australian Consumer Law, a repair, replacement, or refund will be offered. In these cases, Mega Office Supplies will cover reasonable return shipping costs, and photographic evidence may be requested to help process the claim. Items should be reported within a reasonable timeframe after delivery.