Shop adjustable drafting triangles for technical drawing, engineering layouts, architecture, geometry, and precision angle work. Adjustable triangles combine the functionality of a drafting triangle and protractor, allowing accurate variable-angle layouts for manual drafting and technical drawing applications.
Filter By
Products List
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Computing Adjustable Triangle - Inking Edge
Alvin Drafting$20.40 - $33.75The Alvin Drafting Computing Adjustable Triangles are ideal for calculating length and distance in classrooms and professional applications, this tool features an optically clear acrylic body for easier and more accurate measuring. The thumbscrew lock... -
Professional Adjustable Triangle - Inking Edge
Pacific Arc$18.60 - $27.30Professional-quality adjustable triangle with inking edges.Features: 8", 10" or 12" adjustable triangleInking edge is compatible with any writing utensilMarked with rise in tangent, seconds, and degreesClear Acrylic -
Professional Adjustable Triangles - Straight Edge
Staedtler$26.35 - $43.75Clear acrylic with smooth edges. Protractor section is graduated in 1/2 degree increments from 0 to 90 degrees. Available in even sizes from 8" to 12". Features: .118" thick clear acrylic prevents warping and provides maximum stiffnessMagnifier... -
Tru-Angle Adjustable Triangle - Straight Edge
Alvin Drafting$21.90 - $37.05The Alvin Drafting Tru-Angle Adjustable Triangle combines the features of a 45°/90° adjustable triangle with those of a protractor, allowing you to draw angles from 0° to 90° with ½° accuracy. It boasts die-engraved graduations for professional...
Types of Adjustable Drafting Triangles
Adjustable drafting triangles are precision layout tools designed to create accurate variable-angle lines, perpendiculars, and technical drawing layouts. Unlike fixed 45° or 30°/60° drafting triangles, adjustable triangles allow users to set custom angles for engineering drawings, architectural layouts, fabrication work, geometry instruction, and advanced drafting applications.
- Professional Adjustable Triangles: Create precise adjustable-angle layouts for engineering, architectural, and technical drawing applications
- Inking Edge Adjustable Triangles: Feature beveled inking edges designed for use with technical pens and precision drafting instruments
- Plain Edge Adjustable Triangles: Provide smooth layout edges for pencil drafting, sketching, and classroom drawing applications
- Acrylic Adjustable Triangles: Use transparent high-impact acrylic for visibility, durability, and precise drawing alignment
- Rise, Degree & Tangent Triangles: Include rise, slope, tangent, and degree markings for engineering calculations and layout work
- Locking Adjustable Triangles: Use thumb screws and adjustable pivots to maintain consistent angle settings during technical drawing
- Architectural & Engineering Triangles: Support advanced angle layouts used in architecture, engineering, fabrication, and design workflows
Why Adjustable Drafting Triangles Matter
Adjustable drafting triangles provide significantly more flexibility than standard fixed-angle triangles by allowing users to create custom angle layouts quickly and accurately. These tools are especially valuable for engineering drawings, landscape design, fabrication layouts, construction details, and technical illustrations where non-standard angles are required. :contentReference[oaicite:0]{index=0}
Professional adjustable triangles are engineered for precise alignment, smooth adjustment, repeatable measurements, and long-term durability in technical drawing environments. Features such as aluminum pivots, locking thumb screws, transparent acrylic bodies, and die-engraved graduations help improve layout accuracy and reduce drafting errors. :contentReference[oaicite:1]{index=1}
Choosing the Right Adjustable Drafting Triangle
When selecting an adjustable drafting triangle, consider the triangle size, edge style, measurement markings, and type of drafting work being performed. Inking edge models are preferred for technical pen work, while plain edge versions work well for pencil drafting and classroom use. Larger adjustable triangles provide improved stability and visibility for detailed technical layouts and engineering drawings.
Complete Your Drafting Workspace
Pair adjustable drafting triangles with related drafting instruments and technical drawing tools to create accurate layouts, engineering drawings, and precision technical illustrations.
Shop Drafting Triangles | Shop Protractors | Shop Drawing Compasses | Shop Drafting Scales | Shop T-Squares | Shop Technical Pens | Shop Drafting Paper | Shop Drafting Boards
