Quick Squares

About Quick Squares

Quick squares, also known as speed squares or rafter squares, are triangular layout tools that have become essential equipment for carpenters, roofers, and builders across the UK. These versatile measuring instruments combine the functions of a try square, miter square, protractor, and saw guide in one compact design. Manufactured primarily from durable aluminium or high-impact composite materials, quick squares feature a distinctive lipped edge that hooks securely onto board edges, enabling accurate one-handed operation whilst marking or guiding circular saws. MyToolShed.co.uk stocks a comprehensive range from trusted brands including Faithfull, Swanson, DeWalt, Milwaukee, Stanley, Draper, and Sealey.

Professional-grade quick squares typically display graduated markings in metric or imperial measurements, with many models featuring specialised roofing calculations, common rafter tables, and hip-val scales stamped directly onto the body. Available in sizes ranging from 150mm to 300mm, these tools deliver exceptional speed and accuracy for everything from basic square marking to complex roof pitch calculations, making them indispensable for both trade professionals and serious DIY enthusiasts.

Applications

Quick squares serve numerous trades and applications across the construction industry:

• Carpenters and Joiners: Marking timber cuts, checking square assemblies, and laying out framing members during first and second-fix work
• Roofers: Calculating and marking rafter cuts, determining roof pitches, and establishing hip and valley angles
• Builders and General Construction Workers: Quick reference tool for verifying right angles and marking repetitive cuts on site
• Shopfitters: Precise angle verification during cabinet construction and installation projects
• Decking Specialists: Marking consistent angles on balustrade posts, handrails, and joist layouts
• Staircase Fitters: Calculating and marking stringer cuts using stair gauge functions
• DIY Enthusiasts: Home improvement projects requiring accurate square marking, from shed construction to garden furniture building

Choosing The Right Quick Squares

Size Selection: Quick squares typically range from 150mm to 300mm. Smaller 150-180mm models suit tight spaces and general marking, whilst 250-300mm versions provide extended reach for wider boards and improved accuracy over longer measurements.

Material Construction: Aluminium models offer the best balance of durability and weight for professional use. High-impact composite squares provide excellent value for occasional users, whilst premium anodised or powder-coated aluminium resists corrosion in harsh site conditions.

Measurement System: UK tradespeople typically prefer metric markings for general construction work. However, roofing specialists often require imperial measurements for traditional pitch calculations. MyToolShed.co.uk stocks metric-only, imperial-only, and dual-marked versions to suit all preferences.

Specialised Features: Standard speed squares suit general carpentry, whilst rafter squares include comprehensive hip-val scales and roofing tables essential for roof construction. Adjustable models like the Stanley Adjustable Quick Square or Faithfull Prestige Adjustable Quick Roofing Square allow custom angle settings beyond standard presets.

Brand Quality: Professional brands like Swanson (the original speed square manufacturer), DeWalt, Milwaukee, and Faithfull Prestige range offer superior accuracy and durability for daily trade use, whilst Draper and Sealey provide good value for lighter-duty applications.

Safety Information

Whilst quick squares themselves pose minimal safety risks, proper use contributes significantly to overall site safety. Accurate marking helps prevent dangerous blade binding and kickback when using circular saws—always ensure the lipped edge is firmly seated against the workpiece before cutting. Aluminium squares can develop sharp edges through use, so inspect regularly and file smooth any burrs. Periodically verify your square's accuracy by checking against known square references, particularly after drops or impacts, as inaccurately marked structural members can compromise building safety.

Frequently Asked Questions

What's the difference between a speed square and a rafter square?

Speed square is the general term for triangular layout tools, whilst rafter square specifically refers to models with additional roofing calculations, hip-val scales, and common rafter tables. For general carpentry, a standard speed square suffices; for roofing work, invest in a proper rafter square with specialised marking tables.

Can I use a quick square as a saw guide for my circular saw?

Yes, this is one of their primary functions. The thick lipped edge hooks securely over the board edge, whilst the body provides a straight fence for your circular saw's base plate. Ensure your saw's base doesn't overhang the square's edge, and always cut on the waste side of your marked line.

What size quick square should I buy for general carpentry work?

A 185-250mm quick square offers the best versatility for most carpentry applications. This size handles standard timber widths comfortably, provides adequate saw guidance, and remains compact enough for tool belts. Browse the full range at MyToolShed.co.uk to find the perfect size for your requirements.