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Today's Deals
Best Set Square Plastic Large of 2026
Last updated on 06/01/2026
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Carpentry Squares
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1
OX Trade 2pc Rafter Square Set – 180mm & 300mm, Heavy Duty ABS Plastic Roofing & Carpentry Squares with Easy-Read Graduations & Wide Base for Accurate Marking, Cutting & Saw Guide Use, OX-T433702
OX Tools
5% Off
Why we love it
Versatile measurements for carpentry.
Heavy-duty ABS plastic construction.
Clear, well-defined gradations.
Main Highlights
Set of Two: The OX Trade Plastic Rafters Square Set includes two squares (180mm and 300mm), for versatile measurements in carpentry and roofing projects.
Made from heavy-duty ABS plastic: To ensure durability and longevity, making the roofing rafter square suitable for use in demanding construction environments.
Easy to Read Gradations: Clear and well-defined markings on the square allow for accurate measurements and angle markings in carpentry and roofing tasks.
Wide Base for Stability & Saw Guide Use – The broad base holds firmly against timber and sheet materials, providing stability during marking and cutting, and doubles as a reliable saw guide for straight, consistent cuts.
Applications: Ideal for framing, angle marking, squaring, and layout work. A must-have measuring set for carpenters, joiners, roofers, and DIY enthusiasts seeking precision and reliability.
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9.8
Exceptional
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9.8
Exceptional
OX Tools
OX Trade 2pc Rafter Square Set – 180mm & 300mm, Heavy Duty ABS Plastic Roofing & Carpentry Squares with Easy-Read Graduations & Wide Base for Accurate Marking, Cutting & Saw Guide Use, OX-T433702
5% Off
Check Price
Show More
Why we love it
Versatile measurements for carpentry.
Heavy-duty ABS plastic construction.
Clear, well-defined gradations.
Main Highlights
Set of Two: The OX Trade Plastic Rafters Square Set includes two squares (180mm and 300mm), for versatile measurements in carpentry and roofing projects.
Made from heavy-duty ABS plastic: To ensure durability and longevity, making the roofing rafter square suitable for use in demanding construction environments.
Easy to Read Gradations: Clear and well-defined markings on the square allow for accurate measurements and angle markings in carpentry and roofing tasks.
Wide Base for Stability & Saw Guide Use – The broad base holds firmly against timber and sheet materials, providing stability during marking and cutting, and doubles as a reliable saw guide for straight, consistent cuts.
Applications: Ideal for framing, angle marking, squaring, and layout work. A must-have measuring set for carpenters, joiners, roofers, and DIY enthusiasts seeking precision and reliability.
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Value for Money
2
STAEDTLER 567 36-45 Mars Set Square, 36cm 45/45 Degree - Transparent (Pack of 1)
STAEDTLER
7% Off
Why we love it
Inking edge adds precision.
Durable plastic construction.
Translucent blue for visibility.
Main Highlights
Design includes inking edge
Made from plastic
Scale begins directly at the edge
Available in translucent blue colour
Calibrated in mm
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9.6
Superb
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9.6
Superb
STAEDTLER
STAEDTLER 567 36-45 Mars Set Square, 36cm 45/45 Degree - Transparent (Pack of 1)
7% Off
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Why we love it
Inking edge adds precision.
Durable plastic construction.
Translucent blue for visibility.
Main Highlights
Design includes inking edge
Made from plastic
Scale begins directly at the edge
Available in translucent blue colour
Calibrated in mm
Show More
3
Faithfull Roofing Rafter Framing Square – Heavy-Duty Steel Carpenter's Square with Metric & Imperial Markings, Conversion Chart & Hanging Hole - 600 x 400mm (24 x 16in)
Faithfull
16% Off
Why we love it
Simple and user-friendly.
Affordable and great value.
Highly functional ruler.
Main Highlights
Heavy-Duty Steel Construction with Integrated Hanging Hole – Built from robust steel for long-lasting durability and reliable performance in measuring and marking tasks, even with regular use. The integrated hanging hole allows for easy wall or pegboard storage.
Black Powder-Coated Finish – Corrosion-resistant finish protects the square in harsh working conditions, ensuring clean, visible markings over time.
Metric & Imperial Markings –– Clearly graduated on both sides with metric (mm/cm) and imperial (inches) scales for precision measuring in any standard.
Built-in Roofing Conversion Chart – Includes printed reference guide for rafter cuts, roof pitch calculations and rise measurements, saving time and reducing errors during complex layouts.
Faithfull 5 Years Manufacturers Guarantee - Offering durability, efficiency and accuracy, the Faithfull Roofing Square delivers high performance in carpentry, framing, roofing and general marking and measuring tasks.
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9.6
Superb
Check Price
9.6
Superb
Faithfull
Faithfull Roofing Rafter Framing Square – Heavy-Duty Steel Carpenter's Square with Metric & Imperial Markings, Conversion Chart & Hanging Hole - 600 x 400mm (24 x 16in)
16% Off
Check Price
Show More
Why we love it
Simple and user-friendly.
Affordable and great value.
Highly functional ruler.
Main Highlights
Heavy-Duty Steel Construction with Integrated Hanging Hole – Built from robust steel for long-lasting durability and reliable performance in measuring and marking tasks, even with regular use. The integrated hanging hole allows for easy wall or pegboard storage.
Black Powder-Coated Finish – Corrosion-resistant finish protects the square in harsh working conditions, ensuring clean, visible markings over time.
Metric & Imperial Markings –– Clearly graduated on both sides with metric (mm/cm) and imperial (inches) scales for precision measuring in any standard.
Built-in Roofing Conversion Chart – Includes printed reference guide for rafter cuts, roof pitch calculations and rise measurements, saving time and reducing errors during complex layouts.
Faithfull 5 Years Manufacturers Guarantee - Offering durability, efficiency and accuracy, the Faithfull Roofing Square delivers high performance in carpentry, framing, roofing and general marking and measuring tasks.
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4
Artway Adjustable Set Square - 30cm - Acrylic
Artway
Why we love it
High quality acrylic material.
Adjustable for various angles.
Comes with protective case.
Main Highlights
30CM ADJUSTABLE SET SQUARE – A large 30cm/12-inch set square, easily adjustable to a range of different angles from 0 to 90 degrees.
ARCHITECTURE/TECHNICAL DRAWING – An integral tool for anyone needing to make accurate technical drawings. Ideal students and professionals in architecture, engineering, and other technical fields.
DURABLE/QUALITY MATERIALS – Made from high quality acrylic plastic, bevelled edge, metal adjustment handle and accurately engraved distance markings in metric/centimetres, and 0 to 90-degree angles.
PROTECTIVE CASE – Our adjustable set squares come in a convenient, strong grey protective case, storing, and protecting your equipment while on the move.
ARTWAY TECHNICAL EQUIPMENT – As well as our 30cm/12-inch version, our adjustable set square also comes in a 20cm/8-inch version.
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9.6
Superb
Check Price
9.6
Superb
Artway
Artway Adjustable Set Square - 30cm - Acrylic
Check Price
Show More
Why we love it
High quality acrylic material.
Adjustable for various angles.
Comes with protective case.
Main Highlights
30CM ADJUSTABLE SET SQUARE – A large 30cm/12-inch set square, easily adjustable to a range of different angles from 0 to 90 degrees.
ARCHITECTURE/TECHNICAL DRAWING – An integral tool for anyone needing to make accurate technical drawings. Ideal students and professionals in architecture, engineering, and other technical fields.
DURABLE/QUALITY MATERIALS – Made from high quality acrylic plastic, bevelled edge, metal adjustment handle and accurately engraved distance markings in metric/centimetres, and 0 to 90-degree angles.
PROTECTIVE CASE – Our adjustable set squares come in a convenient, strong grey protective case, storing, and protecting your equipment while on the move.
ARTWAY TECHNICAL EQUIPMENT – As well as our 30cm/12-inch version, our adjustable set square also comes in a 20cm/8-inch version.
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5
rOtring Professional Set Square
rOtring
Why we love it
Durable and crystal clear.
Convenient removable grip.
Easy read and use.
Main Highlights
Durable crystal clear plastic for drawing and scaling
Convenient removable grip for comfortable use
Features counter-directional numbering with a coloured background for easy read and use
Indian ink edges and naps
Angle scales 180/1 degrees for accuracy
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9.5
Superb
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9.5
Superb
rOtring
rOtring Professional Set Square
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Show More
Why we love it
Durable and crystal clear.
Convenient removable grip.
Easy read and use.
Main Highlights
Durable crystal clear plastic for drawing and scaling
Convenient removable grip for comfortable use
Features counter-directional numbering with a coloured background for easy read and use
Indian ink edges and naps
Angle scales 180/1 degrees for accuracy
Show More
6
STAEDTLER 567 31-60 Mars Set Square, 31 cm 60/30 Degree - Transparent Blue (Pack of 1)
STAEDTLER
7% Off
Why we love it
Transparent blue for clear visibility.
Scale starts at the edge.
Precise measurements in millimeters.
Main Highlights
Plastic, transparent blue
With inking edge
Scale begins directly at the edge
567 31-60
Calibrated in mm
Show More
9.5
Superb
Check Price
9.5
Superb
STAEDTLER
STAEDTLER 567 31-60 Mars Set Square, 31 cm 60/30 Degree - Transparent Blue (Pack of 1)
7% Off
Check Price
Show More
Why we love it
Transparent blue for clear visibility.
Scale starts at the edge.
Precise measurements in millimeters.
Main Highlights
Plastic, transparent blue
With inking edge
Scale begins directly at the edge
567 31-60
Calibrated in mm
Show More
7
Liquidraw Geometry Set - 5 Piece | 2 x Set Square Triangle Ruler, Semi Circle Protractor, Circle Protractor, 12" Ruler | Professional Quality | Work or School Supplies | Mm & Inch Markings | Clear
Liquidraw
Why we love it
Durable and precise measurement tools.
Versatile for various geometric tasks.
Easy-to-read dual markings.
Main Highlights
MATHS KIT ESSENTIALS: This stationery set has all the tools required for professional use in the workplace; it also contains essential supplies for learning geometry or advanced maths or science at college, university or school
5 PIECE SET: This kit includes 1 x set square 45° 25cm / 10", 1 x set square 60° 30cm / 12", 1 x semi circular protractor 180°, 1 x circle protractor 360° / 5.5" & 1 x 12" ruler in clear, transparent plastic
MM & INCHES: With markings in inches & millimetres (easily convertible to centimetres), this set provides accurate & precise measurements with every use, perfect for school, work or art & design
DURABLE & TRANSPARENT: Made from strong, clear plastic, these tools allow you to see the page or work surface below; they are long-lasting, designed to resist bending or cracking for everyday use
EASY TO TRANSPORT: Each item in this lightweight set is 2.9 mm thick, light & portable; easy to carry in a bag, pencil case or tool set box; this set is ideal for secondary school students, architecture students, artists & more
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9.4
Superb
Check Price
9.4
Superb
Liquidraw
Liquidraw Geometry Set - 5 Piece | 2 x Set Square Triangle Ruler, Semi Circle Protractor, Circle Protractor, 12" Ruler | Professional Quality | Work or School Supplies | Mm & Inch Markings | Clear
Check Price
Show More
Why we love it
Durable and precise measurement tools.
Versatile for various geometric tasks.
Easy-to-read dual markings.
Main Highlights
MATHS KIT ESSENTIALS: This stationery set has all the tools required for professional use in the workplace; it also contains essential supplies for learning geometry or advanced maths or science at college, university or school
5 PIECE SET: This kit includes 1 x set square 45° 25cm / 10", 1 x set square 60° 30cm / 12", 1 x semi circular protractor 180°, 1 x circle protractor 360° / 5.5" & 1 x 12" ruler in clear, transparent plastic
MM & INCHES: With markings in inches & millimetres (easily convertible to centimetres), this set provides accurate & precise measurements with every use, perfect for school, work or art & design
DURABLE & TRANSPARENT: Made from strong, clear plastic, these tools allow you to see the page or work surface below; they are long-lasting, designed to resist bending or cracking for everyday use
EASY TO TRANSPORT: Each item in this lightweight set is 2.9 mm thick, light & portable; easy to carry in a bag, pencil case or tool set box; this set is ideal for secondary school students, architecture students, artists & more
Show More
8
Pack of 2 Large Transparent Metric Triangle Ruler Set Square: 30 CM (12 Inch) - 30/60 Degree & 22 CM (9 inch) 45/90 Degree | Essential for School and Work use (CM Scale)
Yosogo
Why we love it
Accurate for precise measurements.
Lightweight and easy to carry.
Durable and cost-effective design.
Main Highlights
✅【ACCURATE】: Our high quality triangle metric set squares are made out of acrylic plastic which improves stability and accuracy when drafting or drawing. With its laser-etched markings that won’t fade or rub off, you can see the numbers clearly and be assured of sharp graduation and precise scale.
✅【EASY TO USE】: These large triangle rulers are easy to grip with its hollow cut out centres and easy to use on any surfaces. The black-on-blue design eases distinction of lines and numbers so you can read comfortably, preventing unnecessary eye strain. In addition, these lightweight square sets are only half the weight of a glass which makes it easy for you to carry around for school and work.
✅【WIDE APPLICATION】: Our acrylic triangle set square rulers are highly useful tools for both school and work. These are suitable for architects, engineers, drafting technicians, artists, designers, students, teachers and more professional and precise applications.
✅【VALUE FOR MONEY】: These set square triangle rulers are made out of plastic so that they are not only light-weighted but affordable. On top of that, they are shatterproof with up to 17 times more impact resistance compared to ordinary glass, making them last longer and worth your money.
✅【A LOT OF HAPPY CUSTOMERS】: We have had many happy customers which have made us a professional’s choice for drafting tools and drawing supplies for many years now. It could mean a lot to us if you could let us bridge the gap for you between ideas and innovations. If for any reason you are having trouble with these set squares; please contact us online, and we will make things right.
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9.3
Superb
Check Price
9.3
Superb
Yosogo
Pack of 2 Large Transparent Metric Triangle Ruler Set Square: 30 CM (12 Inch) - 30/60 Degree & 22 CM (9 inch) 45/90 Degree | Essential for School and Work use (CM Scale)
Check Price
Show More
Why we love it
Accurate for precise measurements.
Lightweight and easy to carry.
Durable and cost-effective design.
Main Highlights
✅【ACCURATE】: Our high quality triangle metric set squares are made out of acrylic plastic which improves stability and accuracy when drafting or drawing. With its laser-etched markings that won’t fade or rub off, you can see the numbers clearly and be assured of sharp graduation and precise scale.
✅【EASY TO USE】: These large triangle rulers are easy to grip with its hollow cut out centres and easy to use on any surfaces. The black-on-blue design eases distinction of lines and numbers so you can read comfortably, preventing unnecessary eye strain. In addition, these lightweight square sets are only half the weight of a glass which makes it easy for you to carry around for school and work.
✅【WIDE APPLICATION】: Our acrylic triangle set square rulers are highly useful tools for both school and work. These are suitable for architects, engineers, drafting technicians, artists, designers, students, teachers and more professional and precise applications.
✅【VALUE FOR MONEY】: These set square triangle rulers are made out of plastic so that they are not only light-weighted but affordable. On top of that, they are shatterproof with up to 17 times more impact resistance compared to ordinary glass, making them last longer and worth your money.
✅【A LOT OF HAPPY CUSTOMERS】: We have had many happy customers which have made us a professional’s choice for drafting tools and drawing supplies for many years now. It could mean a lot to us if you could let us bridge the gap for you between ideas and innovations. If for any reason you are having trouble with these set squares; please contact us online, and we will make things right.
Show More
9
2 Pcs Combination Triangle Rule, 12 Inch Combination Square with Spirit Level and 45-90 Degree Marking, Speed Squares 7 inch with Marking Pen for Accurate Measurement
FcaecY
10% Off
Why we love it
High accuracy for precise measurements.
Durable aluminum alloy construction.
Versatile for various applications.
Main Highlights
📐HIGH ACCURACY: The set squares for woodwork with Bubble Level for more accurate readings and laser-etched numbers to increase readability and prevent wear and tear. Centimeter square tool on one side and inch square tool on the other side, which can meet the needs of high precision measurement and drawing.
📏EXCELLENT MATERIAL: The square tool set is made of aluminum alloy, which is wear-resistant, drop-resistant, not easy to rust, and has a long service life.
✏FULL FEATURED: The combination square set can measure right angles and levels, the triangle ruler carpenters square can draw all kinds of angles and straight lines, and it can also measure inside and outside angles to meet a variety of needs.
📚EASY TO OPERATE: Our speed square adjustable angle ruler woodworking tools slide locking and detachable design, easy to operate and convenient for different scenarios.
🔧WIDE APPLICABILITY: The combination square set angle measurement tool suitable for carpentry, masonry, metal working and many other working scenarios.
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9.1
Superb
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9.1
Superb
FcaecY
2 Pcs Combination Triangle Rule, 12 Inch Combination Square with Spirit Level and 45-90 Degree Marking, Speed Squares 7 inch with Marking Pen for Accurate Measurement
10% Off
Check Price
Show More
Why we love it
High accuracy for precise measurements.
Durable aluminum alloy construction.
Versatile for various applications.
Main Highlights
📐HIGH ACCURACY: The set squares for woodwork with Bubble Level for more accurate readings and laser-etched numbers to increase readability and prevent wear and tear. Centimeter square tool on one side and inch square tool on the other side, which can meet the needs of high precision measurement and drawing.
📏EXCELLENT MATERIAL: The square tool set is made of aluminum alloy, which is wear-resistant, drop-resistant, not easy to rust, and has a long service life.
✏FULL FEATURED: The combination square set can measure right angles and levels, the triangle ruler carpenters square can draw all kinds of angles and straight lines, and it can also measure inside and outside angles to meet a variety of needs.
📚EASY TO OPERATE: Our speed square adjustable angle ruler woodworking tools slide locking and detachable design, easy to operate and convenient for different scenarios.
🔧WIDE APPLICABILITY: The combination square set angle measurement tool suitable for carpentry, masonry, metal working and many other working scenarios.
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10
Combination Square Set 12 inch 7 inch,Trend Angle Finder,Bevel Gauge,Woodworking Triangle Speed Square for Carpenters Engineers Roofers Builders Joiners (Silver)
Moling
Why we love it
Durable for long-lasting use.
Precision for accurate measurements.
Versatile for all skill levels.
Main Highlights
Durable Metal Construction: Crafted from high-grade aluminium for the triangle ruler and sturdy stainless steel for the straight edge, these tools offer superior resistance to bending, rust, and wear for long-lasting use.
Precision Marking & Measuring: The aluminium triangle ruler ensures accurate 90-degree angles and sharp, clear markings, while the stainless steel straight edge provides a reliable guide for cutting and drawing straight lines.
Dual Measurement System: This versatile set includes a 7-inch imperial triangle ruler and a 30cm(12-inch)metric straight edge ruler, catering to a wide range of woodworking and DIY projects with flexibility and precision.
Versatile for Professionals & Hobbyists: An essential toolkit for Carpentry, engineers, artists, and home DIY enthusiasts. Ideal for measuring, marking, scaling, and checking angles in woodworking, metalworking, and technical drawing.
Ergonomic & Practical Design: Features a lightweight yet sturdy build with easy-to-read etched markings that resist fading over time. The sleek silver finish ensures a professional look in any workshop.
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9.0
Superb
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9.0
Superb
Moling
Combination Square Set 12 inch 7 inch,Trend Angle Finder,Bevel Gauge,Woodworking Triangle Speed Square for Carpenters Engineers Roofers Builders Joiners (Silver)
Check Price
Show More
Why we love it
Durable for long-lasting use.
Precision for accurate measurements.
Versatile for all skill levels.
Main Highlights
Durable Metal Construction: Crafted from high-grade aluminium for the triangle ruler and sturdy stainless steel for the straight edge, these tools offer superior resistance to bending, rust, and wear for long-lasting use.
Precision Marking & Measuring: The aluminium triangle ruler ensures accurate 90-degree angles and sharp, clear markings, while the stainless steel straight edge provides a reliable guide for cutting and drawing straight lines.
Dual Measurement System: This versatile set includes a 7-inch imperial triangle ruler and a 30cm(12-inch)metric straight edge ruler, catering to a wide range of woodworking and DIY projects with flexibility and precision.
Versatile for Professionals & Hobbyists: An essential toolkit for Carpentry, engineers, artists, and home DIY enthusiasts. Ideal for measuring, marking, scaling, and checking angles in woodworking, metalworking, and technical drawing.
Ergonomic & Practical Design: Features a lightweight yet sturdy build with easy-to-read etched markings that resist fading over time. The sleek silver finish ensures a professional look in any workshop.
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